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The dentist has decided to {{U}}extract{{/U}} her bad tooth.
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Thedentisthasdecidedtotakeoutthegirlsbadtooth.
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Thedentisthasdecidedtoextractherbadtooth.
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Thedentisthasdecidedtopulloutherbadtooth.
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Thedentisthasdecidedtotakeoutthegirl’sbadtooth.
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Thedentisthasdecidedtoextractherhadtooth.
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Thedentisthasdecidedto{{U}}extract{{/U}}herbadtoot
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Thedentisthasdecidedto{{U}}extract{{/U}}herbadtoot
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Thedentisthasdecidedto{{U}}takeout{{/U}}thegirl'sb
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Thedentisthasdecidedto{{U}}extract{{/U}}herbadtoot
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Thedentisthasdecidedtoextractherbadtooth.
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Thedentisthasdecidedtotakeoutthegirl'sbadtooth.
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Thedentisthasdecidedtoextractherbadtooth.
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Thedentisthasdecidedtotakeoutthegirl’sbadtooth.
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Thedentisthasdecidedtoextractherbadtooth.
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Thedentisthasdecidedtoextractherbadtooth.
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{{*HTML*}}{{B}}第二篇{{/B}} {{B}}??????? ????????FDA:HumanAnimalWaste ThreatensProduce{{/B}}??Thebiggestfoodsafetyriskforfresh fruitsandvegetablesastheyaregrownpickedorprocessedcomesfromhuman andanimalwastetheUSFoodandDrugAdministrationFDAsaid Friday.??Morethan9000Americansdieeachyearfromfood-borne diseasesandsomescientistsbelievefreshproduceisthebiggestcarrierof contamination.??TheFDAissuedasetofdraftguidelinesforUS andforeigngrowerstocarefullymonitorworkerhygienewaterqualitymanure managementandtransportation.??This34-pagedraftguidelines urgedgrowerstogiveworkerslessonsonbasichygienesuchasUsingsoapto washtheirhandscoveringwoundsthatcouldcomeintocontactwithproduceand usingonlycleantoilets.??TheFDAguidelinesidentifiedthe majorsourceofcontaminationforfreshproduceashumanoranimal feces.??Wethinkjustpropercontrolsandproperattentionto detailwouldmakeabigdifferenceinfoodsafetysaidanFDAofficial.Itis ourbeliefthattheseguidelineswouldnotbeverycostly.??But growergroupsdisagreedwiththeFDA’sassessment.Mostfood-bornedisease outbreaksthathappenfurtherdownthedistributionlinearedueto contaminationbecausepeoplepreparingfoodarenotproperlywashingtheir handssaidStaceyZawalanofficialwithUnitedFreshFruitandVegetable Association.Thatisnotnecessarilytrueforgrowersandpackers.? ?SomeUSgrowerorganizationshaveexpressedconcernthattheagencyis interferingwithon-farmpractices.8OthersobjecttotheFDA’sproposalto havegrowersformallydocumentthepickinghandlingandtransportationof producesothathealthofficialscouldquicklyrecallfoodsif necessary.??ConsumergroupscriticizedtheFDAguidelinesasof littleusebecausetheywillnotcarrytheforceoflawtoButstricter regulationscouldevolveasresearchersfindnewtechnologyormethodstokill harmfulbacteriaorparasitestheFDAsaid.??TheFDA recommendationsareduetobemadefinalbytheFDAlaterthisyearforuseby USandforeigngrowers.Thematterofencouragingforeigngrowerstoadoptthe guidelinesremainssomewhattrickybutFDAofficialssayitisvitalbecauseof thehugeamountofimportedproduce.Somefruitgrowergroupsbelievethatmostfood-bornediseasesarecausedby
HeartAttack IntheUnitedStatesandespeciallyinbigcitiesandruralareastensofthousandsofpeoplewithheartsthatshouldbegood【51】tokeepthemalivedieeachyearforlackofadequatefirstaid.InNewYorkCityforexampleanewstudyhasshownthatonlyonepersonin100outsideofhospitals【52】aftertheheartsuddenlystopspumping.IncontrastinSeattlethesurvival【53】aftersuchheartattacksisoneinfive. Thedifferencecanbetraced【54】theeffectivenessofthechainofsurvivalDr.JosephP.Ornatosaid.Eachlinkinthe【55】mustbestrongenoughformanylivestobe【56】. Thechainbeginswithanimmediatetelephone【57】foremergencyhelpandthestartwithinfourminutesoftheprocessneededforrestartingthe【58】workingbyafamilymemberorbystander旁观者. Itcontinueswiththepromptarrival-------withineight【59】tenminutesofarescuerequippedwithaspecialinstrumentthatcanshocktheheartbacktoanormalrhythm.Anditendswiththeadministration给予实施ofadvanced先进emergencycarebynursestomaintaintheheart’’sabilitytosurviveuntilthedoctorsatthehospitalscantake【60】Whenoneormorelinksinthischainfailorfunctiontooslowlythe【61】ofavictimsurvivingheartattackfallsrapidly.Becauseofwidespreadweaknessesinthechainof【62】expertsinemergencyheartcareestimatethat20000to80000people【63】needlesslyofheartattackeachyearanumbercomparabletothe55000killedannuallyinautomobile【64】. OneexpertsaysSendinganemergencyvehicletoaheartattackvictim【65】thespecialequipmentislikehavingpolicemenwithgunsbutnobullets.Theymayputonagoodshowbuttheylacktheweaponneededtogetthejobdone.
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{{*HTML*}}? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选择1个正确的小标题2第27～30题要求从所给的6个选项中选择4个正确选项分别完成每个句子 {{B}}?????????? ??????????? ?????ScreenTest{{/B}}??1.Everyyear millionsofwomenarescreenedwithX-raystopickupsignsofbreastcancer.If thishappensearlyenoughthediseasecanoftenbetreatedsuccessfully. Accordingtoasurveypublishedlastyear21countrieshavescreening programmes.NineofthemincludingAustraliaCanadatheUSandSpainscreen womenunder50.??2.Butthemedicalbenefitsofscreeningthese youngerwomenarecontroversialpartlybecausetheradiationbringsasmall riskofinducingcancer.Alsoyoungerwomenmustbegivenhigherdosesof X-raysbecausetheirbreasttissueisdenser.??3.Researchersat thePolytechnicUniversityofValenciaanalysedtheeffectofscreeningmore than160000womenat11localclinics.Afterestimatingthewomen’scumulative doseofradiationtheyusedtwomodelstocalculatethenumberofextracancers thiswouldcause.??4.Themathematicalmodelrecommendedby Britain’sNationalRadiologicalProtectionBoardNRPBpredictedthatthe screeningprogrammewouldcause36cancersper100000women18ofthemfatal. ThemodelpreferredbytheUNScientificCommitteeontheEffectsofAtomic Radiationledtoalowerfigureof20cancers.??5.The researchersarguethatthelevelofradiation-inducedcancersisnotvery significantcomparedtothefarlargernumberofcancersthatarediscovered andtreated.TheValenciaprogrammetheysaydetectsbetween300and450cases ofbreastcancerinevery100000womenscreened.??6.Butthey pointoutthattheriskofwomencontractingcancerfromradiationcouldbe reducedbybetween40and80percentifscreeningbeganat50insteadof45 becausetheywouldbeexposedtolessradiation.Theresultsoftheirstudy theysuggestcouldhelpoptimisethetechniqueforbreastcancer screening.??7.Thereisatrade-offbetweenthediagnostic benefitsofbreastscreeninganditsrisksadmitsMichaelClarkoftheNRPB. Buthewarnsthatthestudyshouldbeinterpretedwithcaution.Onthebasisof thecurrentdataforevery10cancerssuccessfullydetectedandpreventedthere isariskofcausingonelaterinlife.That’swhyradiationexposureshouldbe minimisedinanyscreeningprogramme.Paragraph4______
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{{*HTML*}}? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选择1个正确的小标题2第27～30题要求从所给的6个选项中选择4个正确选项分别完成每个句子 {{B}}?????????? ??????????? ?????ScreenTest{{/B}}??1.Everyyear millionsofwomenarescreenedwithX-raystopickupsignsofbreastcancer.If thishappensearlyenoughthediseasecanoftenbetreatedsuccessfully. Accordingtoasurveypublishedlastyear21countrieshavescreening programmes.NineofthemincludingAustraliaCanadatheUSandSpainscreen womenunder50.??2.Butthemedicalbenefitsofscreeningthese youngerwomenarecontroversialpartlybecausetheradiationbringsasmall riskofinducingcancer.Alsoyoungerwomenmustbegivenhigherdosesof X-raysbecausetheirbreasttissueisdenser.??3.Researchersat thePolytechnicUniversityofValenciaanalysedtheeffectofscreeningmore than160000womenat11localclinics.Afterestimatingthewomen’scumulative doseofradiationtheyusedtwomodelstocalculatethenumberofextracancers thiswouldcause.??4.Themathematicalmodelrecommendedby Britain’sNationalRadiologicalProtectionBoardNRPBpredictedthatthe screeningprogrammewouldcause36cancersper100000women18ofthemfatal. ThemodelpreferredbytheUNScientificCommitteeontheEffectsofAtomic Radiationledtoalowerfigureof20cancers.??5.The researchersarguethatthelevelofradiation-inducedcancersisnotvery significantcomparedtothefarlargernumberofcancersthatarediscovered andtreated.TheValenciaprogrammetheysaydetectsbetween300and450cases ofbreastcancerinevery100000womenscreened.??6.Butthey pointoutthattheriskofwomencontractingcancerfromradiationcouldbe reducedbybetween40and80percentifscreeningbeganat50insteadof45 becausetheywouldbeexposedtolessradiation.Theresultsoftheirstudy theysuggestcouldhelpoptimisethetechniqueforbreastcancer screening.??7.Thereisatrade-offbetweenthediagnostic benefitsofbreastscreeninganditsrisksadmitsMichaelClarkoftheNRPB. Buthewarnsthatthestudyshouldbeinterpretedwithcaution.Onthebasisof thecurrentdataforevery10cancerssuccessfullydetectedandpreventedthere isariskofcausingonelaterinlife.That’swhyradiationexposureshouldbe minimisedinanyscreeningprogramme.Delayingtheageatwhichscreeningstartsmay______
HeartAttack IntheUnitedStatesandespeciallyinbigcitiesandruralareastensofthousandsofpeoplewithheartsthatshouldbegood【51】tokeepthemalivedieeachyearforlackofadequatefirstaid.InNewYorkCityforexampleanewstudyhasshownthatonlyonepersonin100outsideofhospitals【52】aftertheheartsuddenlystopspumping.IncontrastinSeattlethesurvival【53】aftersuchheartattacksisoneinfive. Thedifferencecanbetraced【54】theeffectivenessofthechainofsurvivalDr.JosephP.Ornatosaid.Eachlinkinthe【55】mustbestrongenoughformanylivestobe【56】. Thechainbeginswithanimmediatetelephone【57】foremergencyhelpandthestartwithinfourminutesoftheprocessneededforrestartingthe【58】workingbyafamilymemberorbystander旁观者. Itcontinueswiththepromptarrival-------withineight【59】tenminutesofarescuerequippedwithaspecialinstrumentthatcanshocktheheartbacktoanormalrhythm.Anditendswiththeadministration给予实施ofadvanced先进emergencycarebynursestomaintaintheheart’’sabilitytosurviveuntilthedoctorsatthehospitalscantake【60】Whenoneormorelinksinthischainfailorfunctiontooslowlythe【61】ofavictimsurvivingheartattackfallsrapidly.Becauseofwidespreadweaknessesinthechainof【62】expertsinemergencyheartcareestimatethat20000to80000people【63】needlesslyofheartattackeachyearanumbercomparabletothe55000killedannuallyinautomobile【64】. OneexpertsaysSendinganemergencyvehicletoaheartattackvictim【65】thespecialequipmentislikehavingpolicemenwithgunsbutnobullets.Theymayputonagoodshowbuttheylacktheweaponneededtogetthejobdone.
{{*HTML*}}下面有3篇短文每篇短文后有5道题每题后面有4个选项请仔细阅读短文并根据短文回答其后面的问题从4个选项中选择1个最佳答案{{B}}第一篇{{/B}} {{B}}??????? ??????????? ??AdaptationofLivingThings{{/B}}??Certainanimalsand plantsdevelopcharacteristicsthathelpthemcopewiththeirenvironments betterthanothersoftheirkind.Thisnaturalbiologicalprocessiscalled adaptation.Amongthesuperiorcharacteristicsdevelopedthroughadaptationare thosethatmayhelpingettingfoodorshelterinprovidingprotectionandin producingandprotectingtheyoung.Thatresultsintheevolutionofmoreand moreorganismsthatarebetterfittedtotheirenvironments.? ?Eachlivingthingisadaptedtoitswayoflifeinageneralwaybuteach isadaptedespeciallytoitsowndistinctclass.Aplantforexampledepends uponitsrootstofixitselffirmlyandtoabsorbwaterandinorganicchemicals. Itdependsuponitsgreenleavesforusingthesun’senergytomakefoodfrom inorganicchemicals.Thesearegeneraladaptationscommontomostplants.In additiontherearespecialadaptationsthatonlycertainkindsofplants have.??Manyanimalshaveadaptationsthathelpthemescapefrom theirenemies.Someinsectsarehiddenbytheirbodycolororshapeandmany looklikealeaforalittlebranch.Thecoatsofdeerarecoloredtomixwith thesurroundings.Manyanimalshavetheabilitytoremaincompletelystillwhen anenemyisnear.??Organismshaveagreatvarietyofwaysof adapting.Theymayadaptintheirstructurefunctionandgenetics;intheir developmentandproductionoftheyoung;andinotherrespects.Anorganismmay createitsownenvironmentasdowarm-bloodedmammalswhichhavetheability toadjustbodyheatexactlytomaintaintheiridealtemperaturedespitechanging weather.Usuallyadaptationsareanadvantagebutsometimesanorganismisso welladaptedtoaparticularenvironmentthatifconditionschangeitfindsit difficultorimpossibletoreadapttothenew conditions.Someplantsandanimalsdevelopsuperiorcharacteristicssothattheymay
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HeartAttack IntheUnitedStatesandespeciallyinbigcitiesandruralareastensofthousandsofpeoplewithheartsthatshouldbegood【51】tokeepthemalivedieeachyearforlackofadequatefirstaid.InNewYorkCityforexampleanewstudyhasshownthatonlyonepersonin100outsideofhospitals【52】aftertheheartsuddenlystopspumping.IncontrastinSeattlethesurvival【53】aftersuchheartattacksisoneinfive. Thedifferencecanbetraced【54】theeffectivenessofthechainofsurvivalDr.JosephP.Ornatosaid.Eachlinkinthe【55】mustbestrongenoughformanylivestobe【56】. Thechainbeginswithanimmediatetelephone【57】foremergencyhelpandthestartwithinfourminutesoftheprocessneededforrestartingthe【58】workingbyafamilymemberorbystander旁观者. Itcontinueswiththepromptarrival-------withineight【59】tenminutesofarescuerequippedwithaspecialinstrumentthatcanshocktheheartbacktoanormalrhythm.Anditendswiththeadministration给予实施ofadvanced先进emergencycarebynursestomaintaintheheart’’sabilitytosurviveuntilthedoctorsatthehospitalscantake【60】Whenoneormorelinksinthischainfailorfunctiontooslowlythe【61】ofavictimsurvivingheartattackfallsrapidly.Becauseofwidespreadweaknessesinthechainof【62】expertsinemergencyheartcareestimatethat20000to80000people【63】needlesslyofheartattackeachyearanumbercomparabletothe55000killedannuallyinautomobile【64】. OneexpertsaysSendinganemergencyvehicletoaheartattackvictim【65】thespecialequipmentislikehavingpolicemenwithgunsbutnobullets.Theymayputonagoodshowbuttheylacktheweaponneededtogetthejobdone.
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HeartAttack IntheUnitedStatesandespeciallyinbigcitiesandruralareastensofthousandsofpeoplewithheartsthatshouldbegood【51】tokeepthemalivedieeachyearforlackofadequatefirstaid.InNewYorkCityforexampleanewstudyhasshownthatonlyonepersonin100outsideofhospitals【52】aftertheheartsuddenlystopspumping.IncontrastinSeattlethesurvival【53】aftersuchheartattacksisoneinfive. Thedifferencecanbetraced【54】theeffectivenessofthechainofsurvivalDr.JosephP.Ornatosaid.Eachlinkinthe【55】mustbestrongenoughformanylivestobe【56】. Thechainbeginswithanimmediatetelephone【57】foremergencyhelpandthestartwithinfourminutesoftheprocessneededforrestartingthe【58】workingbyafamilymemberorbystander旁观者. Itcontinueswiththepromptarrival-------withineight【59】tenminutesofarescuerequippedwithaspecialinstrumentthatcanshocktheheartbacktoanormalrhythm.Anditendswiththeadministration给予实施ofadvanced先进emergencycarebynursestomaintaintheheart’’sabilitytosurviveuntilthedoctorsatthehospitalscantake【60】Whenoneormorelinksinthischainfailorfunctiontooslowlythe【61】ofavictimsurvivingheartattackfallsrapidly.Becauseofwidespreadweaknessesinthechainof【62】expertsinemergencyheartcareestimatethat20000to80000people【63】needlesslyofheartattackeachyearanumbercomparabletothe55000killedannuallyinautomobile【64】. OneexpertsaysSendinganemergencyvehicletoaheartattackvictim【65】thespecialequipmentislikehavingpolicemenwithgunsbutnobullets.Theymayputonagoodshowbuttheylacktheweaponneededtogetthejobdone.
{{*HTML*}}??阅读下面这篇短文短文后列出7个句子请根据短文的内容对每个句子做出判断 {{B}}??????? ??????????? ????????Foodand Cancer{{/B}}??Medicalexpertshavesuspectedformanyyearsthat thereisastronglinkbetweenwhatapersoneatsandcancer.Theysayanew studyprovidesthefirstevidencethatvitaminscouldreduceaperson’schance ofdevelopingcancer.AteamofChineseandAmericanscientistsdidthestudy. TheyarefromAmericanNationalCancerInstituteandtheCancerInstituteofthe ChineseAcademyofMedicalSciencesinBeijing.TheJournaloftheNational CancerInstitutepublishedtheresultsofthestudy.Aboutthirtythousand peoplebetweentheagesof40to69tookpartinthestudy.Theywerefromthe northerncentralChineseareaofLinxian.Mostofthemtookvitaminsand mineralseverydayforfiveyears.??Linxianwaschosenbecause thepeopletherehaveanextremelyhighrateofcancerofstomachandesophagus. Researchersbelievethatfungusandmoldsinlocalfoodsmaybepartly responsibleforthehighcancerrate.Researchersdividedthoseintoeight groups.Sevenofthegroupsreceiveddifferentmixturesofvitaminsandminerals daily.Theamountsofthevitaminsandmineralswere1to2timesgreaterthan whatAmericanhealthofficialssayisneeded.Theeighthgroupreceivedsugar pillsthathadnoeffect.Thosewhoseemedtogainthemostreceivedamixture ofaformofvitaminAcalledβ-carotenevitaminEandthemineralselenium. Thevitaminandmineralarebelievedtopreventdamagetocellscausedby cancer-causingsubstances.Researchersreporteda13percentdropincancer ratesinthosewhotookβ-carotenevitaminEandselenium.Theyalsofounda10 percentdropinthenumberofdeathscausedbystrokesfromburstingblood vessels.??Scientistswarnthatitistoosoontoknowifthe effectwouldbethesameamongpeopleinothercountries.Theynotethatthe peopleinLinxianeatfoodsthatlacknecessaryvitaminsandminerals.Chinese officialswillcontinuetorecordthehealthrecordsofthepeopleinLinxian formanyyears.Fornowofficialsreportedlyareconsideringusingthe.results ofthestudy.TheywanttofindawaytoimprovethehealthofpeopleinLinxian andothersmalltownsinChina.Allthosepeoplewhotookpartinthestudyreceivedvitaminsandminerals.
{{*HTML*}}? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选择1个正确的小标题2第27～30题要求从所给的6个选项中选择4个正确选项分别完成每个句子 {{B}}?????????? ??????????? ?????ScreenTest{{/B}}??1.Everyyear millionsofwomenarescreenedwithX-raystopickupsignsofbreastcancer.If thishappensearlyenoughthediseasecanoftenbetreatedsuccessfully. Accordingtoasurveypublishedlastyear21countrieshavescreening programmes.NineofthemincludingAustraliaCanadatheUSandSpainscreen womenunder50.??2.Butthemedicalbenefitsofscreeningthese youngerwomenarecontroversialpartlybecausetheradiationbringsasmall riskofinducingcancer.Alsoyoungerwomenmustbegivenhigherdosesof X-raysbecausetheirbreasttissueisdenser.??3.Researchersat thePolytechnicUniversityofValenciaanalysedtheeffectofscreeningmore than160000womenat11localclinics.Afterestimatingthewomen’scumulative doseofradiationtheyusedtwomodelstocalculatethenumberofextracancers thiswouldcause.??4.Themathematicalmodelrecommendedby Britain’sNationalRadiologicalProtectionBoardNRPBpredictedthatthe screeningprogrammewouldcause36cancersper100000women18ofthemfatal. ThemodelpreferredbytheUNScientificCommitteeontheEffectsofAtomic Radiationledtoalowerfigureof20cancers.??5.The researchersarguethatthelevelofradiation-inducedcancersisnotvery significantcomparedtothefarlargernumberofcancersthatarediscovered andtreated.TheValenciaprogrammetheysaydetectsbetween300and450cases ofbreastcancerinevery100000womenscreened.??6.Butthey pointoutthattheriskofwomencontractingcancerfromradiationcouldbe reducedbybetween40and80percentifscreeningbeganat50insteadof45 becausetheywouldbeexposedtolessradiation.Theresultsoftheirstudy theysuggestcouldhelpoptimisethetechniqueforbreastcancer screening.??7.Thereisatrade-offbetweenthediagnostic benefitsofbreastscreeninganditsrisksadmitsMichaelClarkoftheNRPB. Buthewarnsthatthestudyshouldbeinterpretedwithcaution.Onthebasisof thecurrentdataforevery10cancerssuccessfullydetectedandpreventedthere isariskofcausingonelaterinlife.That’swhyradiationexposureshouldbe minimisedinanyscreeningprogramme.Earlydiscoveryofbreastcancermay______A.becostly
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HeartAttack IntheUnitedStatesandespeciallyinbigcitiesandruralareastensofthousandsofpeoplewithheartsthatshouldbegood【51】tokeepthemalivedieeachyearforlackofadequatefirstaid.InNewYorkCityforexampleanewstudyhasshownthatonlyonepersonin100outsideofhospitals【52】aftertheheartsuddenlystopspumping.IncontrastinSeattlethesurvival【53】aftersuchheartattacksisoneinfive. Thedifferencecanbetraced【54】theeffectivenessofthechainofsurvivalDr.JosephP.Ornatosaid.Eachlinkinthe【55】mustbestrongenoughformanylivestobe【56】. Thechainbeginswithanimmediatetelephone【57】foremergencyhelpandthestartwithinfourminutesoftheprocessneededforrestartingthe【58】workingbyafamilymemberorbystander旁观者. Itcontinueswiththepromptarrival-------withineight【59】tenminutesofarescuerequippedwithaspecialinstrumentthatcanshocktheheartbacktoanormalrhythm.Anditendswiththeadministration给予实施ofadvanced先进emergencycarebynursestomaintaintheheart’’sabilitytosurviveuntilthedoctorsatthehospitalscantake【60】Whenoneormorelinksinthischainfailorfunctiontooslowlythe【61】ofavictimsurvivingheartattackfallsrapidly.Becauseofwidespreadweaknessesinthechainof【62】expertsinemergencyheartcareestimatethat20000to80000people【63】needlesslyofheartattackeachyearanumbercomparabletothe55000killedannuallyinautomobile【64】. OneexpertsaysSendinganemergencyvehicletoaheartattackvictim【65】thespecialequipmentislikehavingpolicemenwithgunsbutnobullets.Theymayputonagoodshowbuttheylacktheweaponneededtogetthejobdone.
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{{*HTML*}}{{B}}第三篇{{/B}} {{B}}??????? ??????????? ????EarlyorLaterDayCare{{/B}}??The BritishpsychoanalystJohnBowlbymaintainsthatseparationfromtheparents duringthesensitiveattachmentperiodfrombirthtothreemayscarachild’s personalityandpredisposetoemotionalproblemsinlaterlife.Somepeoplehave drawntheconclusionfromBowlby’sworkthatchildrenshouldnotbesubjectedto daycarebeforetheageofthreebecauseoftheparentalseparationitentails andmanypeopledobelievethis.Buttherearealsoargumentsagainstsucha strongconclusion.??Firstlyanthropologistspointoutthatthe insulatedloveaffairbetweenchildrenandparentsfoundinmodemsocietiesdoes notusuallyexistintraditionalsocieties.Forexampleinsometribal societiessuchastheNgonihefatherandmotherofachilddidnotrear theirinfantalone--farfromit.Secondlycommonsensetellsusthatdaycare wouldnotbesowidespreadtodayifparentscare-takersfoundchildrenhad problemswithit.Statisticalstudiesofthiskindhavenotyetbeencarried outandeveniftheyweretheresultswouldbecertaintobecomplicatedand controversial.Thirdlyinthelastdecadetherehavebeenanumberofcareful Americanstudiesofchildrenindaycareandtheyhaveuniformlyreportedthat daycarehadaneutralorslightlypositiveeffectonchildren’sdevelopment. Butteststhathavehadtobeusedtomeasurethisdevelopmentarenotwidely enoughacceptedtosettletheissue.??ButBowlby’sanalysis raisesthepossibilitythatearlydaycarehasdelayedeffects.Thepossibility thatsuchcaremightleadtosaymorementalillnessorcrime15or20years latercanonlybeexploredbytheuseofstatistics.Whateverthelong-term effectsparentssometimesfindtheimmediateeffectsdifficulttodealwith. Childrenunderthreearelikelytoprotestatleavingtheirparentsandshow unhappiness.Attheageofthreeorthreeandahalfalmostallchildrenfind thetransitiontonurseryeasyandthisisundoubtedlywhymoreandmore parentsmakeuseofchildcareatthistime.?Thematterthenisfarfrom clear-cutthoughexperienceandavailableevidenceindicatethatearlycareis reasonableforinfants.Itissuggestedthatmodemsocietiesdifferfromtraditionalsocietiesinthat
{{*HTML*}}? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选择1个正确的小标题2第27～30题要求从所给的6个选项中选择4个正确选项分别完成每个句子 {{B}}?????????? ??????????? ?????ScreenTest{{/B}}??1.Everyyear millionsofwomenarescreenedwithX-raystopickupsignsofbreastcancer.If thishappensearlyenoughthediseasecanoftenbetreatedsuccessfully. Accordingtoasurveypublishedlastyear21countrieshavescreening programmes.NineofthemincludingAustraliaCanadatheUSandSpainscreen womenunder50.??2.Butthemedicalbenefitsofscreeningthese youngerwomenarecontroversialpartlybecausetheradiationbringsasmall riskofinducingcancer.Alsoyoungerwomenmustbegivenhigherdosesof X-raysbecausetheirbreasttissueisdenser.??3.Researchersat thePolytechnicUniversityofValenciaanalysedtheeffectofscreeningmore than160000womenat11localclinics.Afterestimatingthewomen’scumulative doseofradiationtheyusedtwomodelstocalculatethenumberofextracancers thiswouldcause.??4.Themathematicalmodelrecommendedby Britain’sNationalRadiologicalProtectionBoardNRPBpredictedthatthe screeningprogrammewouldcause36cancersper100000women18ofthemfatal. ThemodelpreferredbytheUNScientificCommitteeontheEffectsofAtomic Radiationledtoalowerfigureof20cancers.??5.The researchersarguethatthelevelofradiation-inducedcancersisnotvery significantcomparedtothefarlargernumberofcancersthatarediscovered andtreated.TheValenciaprogrammetheysaydetectsbetween300and450cases ofbreastcancerinevery100000womenscreened.??6.Butthey pointoutthattheriskofwomencontractingcancerfromradiationcouldbe reducedbybetween40and80percentifscreeningbeganat50insteadof45 becausetheywouldbeexposedtolessradiation.Theresultsoftheirstudy theysuggestcouldhelpoptimisethetechniqueforbreastcancer screening.??7.Thereisatrade-offbetweenthediagnostic benefitsofbreastscreeninganditsrisksadmitsMichaelClarkoftheNRPB. Buthewarnsthatthestudyshouldbeinterpretedwithcaution.Onthebasisof thecurrentdataforevery10cancerssuccessfullydetectedandpreventedthere isariskofcausingonelaterinlife.That’swhyradiationexposureshouldbe minimisedinanyscreeningprogramme.Paragraph2______
{{*HTML*}}下面有3篇短文每篇短文后有5道题每题后面有4个选项请仔细阅读短文并根据短文回答其后面的问题从4个选项中选择1个最佳答案{{B}}第一篇{{/B}} {{B}}??????? ??????????? ??AdaptationofLivingThings{{/B}}??Certainanimalsand plantsdevelopcharacteristicsthathelpthemcopewiththeirenvironments betterthanothersoftheirkind.Thisnaturalbiologicalprocessiscalled adaptation.Amongthesuperiorcharacteristicsdevelopedthroughadaptationare thosethatmayhelpingettingfoodorshelterinprovidingprotectionandin producingandprotectingtheyoung.Thatresultsintheevolutionofmoreand moreorganismsthatarebetterfittedtotheirenvironments.? ?Eachlivingthingisadaptedtoitswayoflifeinageneralwaybuteach isadaptedespeciallytoitsowndistinctclass.Aplantforexampledepends uponitsrootstofixitselffirmlyandtoabsorbwaterandinorganicchemicals. Itdependsuponitsgreenleavesforusingthesun’senergytomakefoodfrom inorganicchemicals.Thesearegeneraladaptationscommontomostplants.In additiontherearespecialadaptationsthatonlycertainkindsofplants have.??Manyanimalshaveadaptationsthathelpthemescapefrom theirenemies.Someinsectsarehiddenbytheirbodycolororshapeandmany looklikealeaforalittlebranch.Thecoatsofdeerarecoloredtomixwith thesurroundings.Manyanimalshavetheabilitytoremaincompletelystillwhen anenemyisnear.??Organismshaveagreatvarietyofwaysof adapting.Theymayadaptintheirstructurefunctionandgenetics;intheir developmentandproductionoftheyoung;andinotherrespects.Anorganismmay createitsownenvironmentasdowarm-bloodedmammalswhichhavetheability toadjustbodyheatexactlytomaintaintheiridealtemperaturedespitechanging weather.Usuallyadaptationsareanadvantagebutsometimesanorganismisso welladaptedtoaparticularenvironmentthatifconditionschangeitfindsit difficultorimpossibletoreadapttothenew conditions.Itcanbeinferredfromthispassagethatthefeathersofabirdarecolored
TheAsianFluVirus In1957adoctorinSingaporenoticedthathospitalsweretreatinganunusualnumberofinfluenza-likecases.Influenzaissometimescalledfluorasbadcold.Hetookspecimensfromthethroatsofpatientsinhishospitalandwasabletofindthevirusofthisinfluenza. Therearethreemaintypesoftheinfluenzavirus.ThemostimportantofthesearetypesAandBeachofthemhavingseveralsub-groups.WiththeinstrumentsatthehospitalthedoctorrecognizedthattheoutbreakwasduetoavirusgroupAbuthedidnotknowthesub-group.HereportedtheoutbreaktotheWorldHealthOrganizationinGeneva.W.H.0.publishedtheimportantnewsalongsidereportsofasimilaroutbreakinHongKongwhereabout15%-20%ofthepopulationhadbecomeill. AssoonastheLondondoctorsreceivedthepackageofthroatsamplestheybeganthestandardtests.Theyfoundthatbyreproducingitselfataveryhighspeedthevirushadmultipliedmorethanamilliontimeswithintwodays.Continuingtheircarefulteststhedoctorscheckedtheeffectofdrugsusedagainstalltheknownsub-groupsoftypeAvirusonthisvirus.Noneofthemgaveanyprotection.Thisthenwassomethingnew:anewinfluenzavirusagainstwhichthepeopleoftheworldhadnoreadyhelpwhatsoever. Havingisolatedthevirustheywereworkingwiththetwodoctorsnowconductedtestsonsomespeciallyselectedanimalswhichcontractinfluenzainthesamewayashumanbeingsdo.Inashorttimetheusualsignsofthediseaseappeared.Theseexperimentsrevealedthatthenewvirusspreadeasilybutthatitwasnotakiller.ScientistslikegeneralpubliccalleditsimplyAsianflu. Thewordspecimensinpara1means______.
{{*HTML*}}下面有3篇短文每篇短文后有5道题每题后面有4个选项请仔细阅读短文并根据短文回答其后面的问题从4个选项中选择1个最佳答案{{B}}第一篇{{/B}} {{B}}??????? ??????????? ??AdaptationofLivingThings{{/B}}??Certainanimalsand plantsdevelopcharacteristicsthathelpthemcopewiththeirenvironments betterthanothersoftheirkind.Thisnaturalbiologicalprocessiscalled adaptation.Amongthesuperiorcharacteristicsdevelopedthroughadaptationare thosethatmayhelpingettingfoodorshelterinprovidingprotectionandin producingandprotectingtheyoung.Thatresultsintheevolutionofmoreand moreorganismsthatarebetterfittedtotheirenvironments.? ?Eachlivingthingisadaptedtoitswayoflifeinageneralwaybuteach isadaptedespeciallytoitsowndistinctclass.Aplantforexampledepends uponitsrootstofixitselffirmlyandtoabsorbwaterandinorganicchemicals. Itdependsuponitsgreenleavesforusingthesun’senergytomakefoodfrom inorganicchemicals.Thesearegeneraladaptationscommontomostplants.In additiontherearespecialadaptationsthatonlycertainkindsofplants have.??Manyanimalshaveadaptationsthathelpthemescapefrom theirenemies.Someinsectsarehiddenbytheirbodycolororshapeandmany looklikealeaforalittlebranch.Thecoatsofdeerarecoloredtomixwith thesurroundings.Manyanimalshavetheabilitytoremaincompletelystillwhen anenemyisnear.??Organismshaveagreatvarietyofwaysof adapting.Theymayadaptintheirstructurefunctionandgenetics;intheir developmentandproductionoftheyoung;andinotherrespects.Anorganismmay createitsownenvironmentasdowarm-bloodedmammalswhichhavetheability toadjustbodyheatexactlytomaintaintheiridealtemperaturedespitechanging weather.Usuallyadaptationsareanadvantagebutsometimesanorganismisso welladaptedtoaparticularenvironmentthatifconditionschangeitfindsit difficultorimpossibletoreadapttothenew conditions.Theauthorcitesthebehaviorofwarm-bloodedmammalsinordertoshowthatalivingthingmayhavetheability
{{*HTML*}}{{B}}第二篇{{/B}} {{B}}??????? ????????FDA:HumanAnimalWaste ThreatensProduce{{/B}}??Thebiggestfoodsafetyriskforfresh fruitsandvegetablesastheyaregrownpickedorprocessedcomesfromhuman andanimalwastetheUSFoodandDrugAdministrationFDAsaid Friday.??Morethan9000Americansdieeachyearfromfood-borne diseasesandsomescientistsbelievefreshproduceisthebiggestcarrierof contamination.??TheFDAissuedasetofdraftguidelinesforUS andforeigngrowerstocarefullymonitorworkerhygienewaterqualitymanure managementandtransportation.??This34-pagedraftguidelines urgedgrowerstogiveworkerslessonsonbasichygienesuchasUsingsoapto washtheirhandscoveringwoundsthatcouldcomeintocontactwithproduceand usingonlycleantoilets.??TheFDAguidelinesidentifiedthe majorsourceofcontaminationforfreshproduceashumanoranimal feces.??Wethinkjustpropercontrolsandproperattentionto detailwouldmakeabigdifferenceinfoodsafetysaidanFDAofficial.Itis ourbeliefthattheseguidelineswouldnotbeverycostly.??But growergroupsdisagreedwiththeFDA’sassessment.Mostfood-bornedisease outbreaksthathappenfurtherdownthedistributionlinearedueto contaminationbecausepeoplepreparingfoodarenotproperlywashingtheir handssaidStaceyZawalanofficialwithUnitedFreshFruitandVegetable Association.Thatisnotnecessarilytrueforgrowersandpackers.? ?SomeUSgrowerorganizationshaveexpressedconcernthattheagencyis interferingwithon-farmpractices.8OthersobjecttotheFDA’sproposalto havegrowersformallydocumentthepickinghandlingandtransportationof producesothathealthofficialscouldquicklyrecallfoodsif necessary.??ConsumergroupscriticizedtheFDAguidelinesasof littleusebecausetheywillnotcarrytheforceoflawtoButstricter regulationscouldevolveasresearchersfindnewtechnologyormethodstokill harmfulbacteriaorparasitestheFDAsaid.??TheFDA recommendationsareduetobemadefinalbytheFDAlaterthisyearforuseby USandforeigngrowers.Thematterofencouragingforeigngrowerstoadoptthe guidelinesremainssomewhattrickybutFDAofficialssayitisvitalbecauseof thehugeamountofimportedproduce.ConsumergroupscriticizedtheFDAguidelinesbecausetheydidn’tthinkthattheseguidelines
HeartAttack IntheUnitedStatesandespeciallyinbigcitiesandruralareastensofthousandsofpeoplewithheartsthatshouldbegood【51】tokeepthemalivedieeachyearforlackofadequatefirstaid.InNewYorkCityforexampleanewstudyhasshownthatonlyonepersonin100outsideofhospitals【52】aftertheheartsuddenlystopspumping.IncontrastinSeattlethesurvival【53】aftersuchheartattacksisoneinfive. Thedifferencecanbetraced【54】theeffectivenessofthechainofsurvivalDr.JosephP.Ornatosaid.Eachlinkinthe【55】mustbestrongenoughformanylivestobe【56】. Thechainbeginswithanimmediatetelephone【57】foremergencyhelpandthestartwithinfourminutesoftheprocessneededforrestartingthe【58】workingbyafamilymemberorbystander旁观者. Itcontinueswiththepromptarrival-------withineight【59】tenminutesofarescuerequippedwithaspecialinstrumentthatcanshocktheheartbacktoanormalrhythm.Anditendswiththeadministration给予实施ofadvanced先进emergencycarebynursestomaintaintheheart’’sabilitytosurviveuntilthedoctorsatthehospitalscantake【60】Whenoneormorelinksinthischainfailorfunctiontooslowlythe【61】ofavictimsurvivingheartattackfallsrapidly.Becauseofwidespreadweaknessesinthechainof【62】expertsinemergencyheartcareestimatethat20000to80000people【63】needlesslyofheartattackeachyearanumbercomparabletothe55000killedannuallyinautomobile【64】. OneexpertsaysSendinganemergencyvehicletoaheartattackvictim【65】thespecialequipmentislikehavingpolicemenwithgunsbutnobullets.Theymayputonagoodshowbuttheylacktheweaponneededtogetthejobdone.
{{*HTML*}}??阅读下面这篇短文短文后列出7个句子请根据短文的内容对每个句子做出判断 {{B}}??????? ??????????? ????????Foodand Cancer{{/B}}??Medicalexpertshavesuspectedformanyyearsthat thereisastronglinkbetweenwhatapersoneatsandcancer.Theysayanew studyprovidesthefirstevidencethatvitaminscouldreduceaperson’schance ofdevelopingcancer.AteamofChineseandAmericanscientistsdidthestudy. TheyarefromAmericanNationalCancerInstituteandtheCancerInstituteofthe ChineseAcademyofMedicalSciencesinBeijing.TheJournaloftheNational CancerInstitutepublishedtheresultsofthestudy.Aboutthirtythousand peoplebetweentheagesof40to69tookpartinthestudy.Theywerefromthe northerncentralChineseareaofLinxian.Mostofthemtookvitaminsand mineralseverydayforfiveyears.??Linxianwaschosenbecause thepeopletherehaveanextremelyhighrateofcancerofstomachandesophagus. Researchersbelievethatfungusandmoldsinlocalfoodsmaybepartly responsibleforthehighcancerrate.Researchersdividedthoseintoeight groups.Sevenofthegroupsreceiveddifferentmixturesofvitaminsandminerals daily.Theamountsofthevitaminsandmineralswere1to2timesgreaterthan whatAmericanhealthofficialssayisneeded.Theeighthgroupreceivedsugar pillsthathadnoeffect.Thosewhoseemedtogainthemostreceivedamixture ofaformofvitaminAcalledβ-carotenevitaminEandthemineralselenium. Thevitaminandmineralarebelievedtopreventdamagetocellscausedby cancer-causingsubstances.Researchersreporteda13percentdropincancer ratesinthosewhotookβ-carotenevitaminEandselenium.Theyalsofounda10 percentdropinthenumberofdeathscausedbystrokesfromburstingblood vessels.??Scientistswarnthatitistoosoontoknowifthe effectwouldbethesameamongpeopleinothercountries.Theynotethatthe peopleinLinxianeatfoodsthatlacknecessaryvitaminsandminerals.Chinese officialswillcontinuetorecordthehealthrecordsofthepeopleinLinxian formanyyears.Fornowofficialsreportedlyareconsideringusingthe.results ofthestudy.TheywanttofindawaytoimprovethehealthofpeopleinLinxian andothersmalltownsinChina.TherateofcancerofstomachandesophagusinLinxianisthehighestinChina.
{{*HTML*}}{{B}}第三篇{{/B}} {{B}}??????? ??????????? ????EarlyorLaterDayCare{{/B}}??The BritishpsychoanalystJohnBowlbymaintainsthatseparationfromtheparents duringthesensitiveattachmentperiodfrombirthtothreemayscarachild’s personalityandpredisposetoemotionalproblemsinlaterlife.Somepeoplehave drawntheconclusionfromBowlby’sworkthatchildrenshouldnotbesubjectedto daycarebeforetheageofthreebecauseoftheparentalseparationitentails andmanypeopledobelievethis.Buttherearealsoargumentsagainstsucha strongconclusion.??Firstlyanthropologistspointoutthatthe insulatedloveaffairbetweenchildrenandparentsfoundinmodemsocietiesdoes notusuallyexistintraditionalsocieties.Forexampleinsometribal societiessuchastheNgonihefatherandmotherofachilddidnotrear theirinfantalone--farfromit.Secondlycommonsensetellsusthatdaycare wouldnotbesowidespreadtodayifparentscare-takersfoundchildrenhad problemswithit.Statisticalstudiesofthiskindhavenotyetbeencarried outandeveniftheyweretheresultswouldbecertaintobecomplicatedand controversial.Thirdlyinthelastdecadetherehavebeenanumberofcareful Americanstudiesofchildrenindaycareandtheyhaveuniformlyreportedthat daycarehadaneutralorslightlypositiveeffectonchildren’sdevelopment. Butteststhathavehadtobeusedtomeasurethisdevelopmentarenotwidely enoughacceptedtosettletheissue.??ButBowlby’sanalysis raisesthepossibilitythatearlydaycarehasdelayedeffects.Thepossibility thatsuchcaremightleadtosaymorementalillnessorcrime15or20years latercanonlybeexploredbytheuseofstatistics.Whateverthelong-term effectsparentssometimesfindtheimmediateeffectsdifficulttodealwith. Childrenunderthreearelikelytoprotestatleavingtheirparentsandshow unhappiness.Attheageofthreeorthreeandahalfalmostallchildrenfind thetransitiontonurseryeasyandthisisundoubtedlywhymoreandmore parentsmakeuseofchildcareatthistime.?Thematterthenisfarfrom clear-cutthoughexperienceandavailableevidenceindicatethatearlycareis reasonableforinfants.WhichofthefollowingstatementswouldBowlbysupport?
HeartAttack IntheUnitedStatesandespeciallyinbigcitiesandruralareastensofthousandsofpeoplewithheartsthatshouldbegood【51】tokeepthemalivedieeachyearforlackofadequatefirstaid.InNewYorkCityforexampleanewstudyhasshownthatonlyonepersonin100outsideofhospitals【52】aftertheheartsuddenlystopspumping.IncontrastinSeattlethesurvival【53】aftersuchheartattacksisoneinfive. Thedifferencecanbetraced【54】theeffectivenessofthechainofsurvivalDr.JosephP.Ornatosaid.Eachlinkinthe【55】mustbestrongenoughformanylivestobe【56】. Thechainbeginswithanimmediatetelephone【57】foremergencyhelpandthestartwithinfourminutesoftheprocessneededforrestartingthe【58】workingbyafamilymemberorbystander旁观者. Itcontinueswiththepromptarrival-------withineight【59】tenminutesofarescuerequippedwithaspecialinstrumentthatcanshocktheheartbacktoanormalrhythm.Anditendswiththeadministration给予实施ofadvanced先进emergencycarebynursestomaintaintheheart’’sabilitytosurviveuntilthedoctorsatthehospitalscantake【60】Whenoneormorelinksinthischainfailorfunctiontooslowlythe【61】ofavictimsurvivingheartattackfallsrapidly.Becauseofwidespreadweaknessesinthechainof【62】expertsinemergencyheartcareestimatethat20000to80000people【63】needlesslyofheartattackeachyearanumbercomparabletothe55000killedannuallyinautomobile【64】. OneexpertsaysSendinganemergencyvehicletoaheartattackvictim【65】thespecialequipmentislikehavingpolicemenwithgunsbutnobullets.Theymayputonagoodshowbuttheylacktheweaponneededtogetthejobdone.
{{*HTML*}}??阅读下面这篇短文短文后列出7个句子请根据短文的内容对每个句子做出判断 {{B}}??????? ??????????? ????????Foodand Cancer{{/B}}??Medicalexpertshavesuspectedformanyyearsthat thereisastronglinkbetweenwhatapersoneatsandcancer.Theysayanew studyprovidesthefirstevidencethatvitaminscouldreduceaperson’schance ofdevelopingcancer.AteamofChineseandAmericanscientistsdidthestudy. TheyarefromAmericanNationalCancerInstituteandtheCancerInstituteofthe ChineseAcademyofMedicalSciencesinBeijing.TheJournaloftheNational CancerInstitutepublishedtheresultsofthestudy.Aboutthirtythousand peoplebetweentheagesof40to69tookpartinthestudy.Theywerefromthe northerncentralChineseareaofLinxian.Mostofthemtookvitaminsand mineralseverydayforfiveyears.??Linxianwaschosenbecause thepeopletherehaveanextremelyhighrateofcancerofstomachandesophagus. Researchersbelievethatfungusandmoldsinlocalfoodsmaybepartly responsibleforthehighcancerrate.Researchersdividedthoseintoeight groups.Sevenofthegroupsreceiveddifferentmixturesofvitaminsandminerals daily.Theamountsofthevitaminsandmineralswere1to2timesgreaterthan whatAmericanhealthofficialssayisneeded.Theeighthgroupreceivedsugar pillsthathadnoeffect.Thosewhoseemedtogainthemostreceivedamixture ofaformofvitaminAcalledβ-carotenevitaminEandthemineralselenium. Thevitaminandmineralarebelievedtopreventdamagetocellscausedby cancer-causingsubstances.Researchersreporteda13percentdropincancer ratesinthosewhotookβ-carotenevitaminEandselenium.Theyalsofounda10 percentdropinthenumberofdeathscausedbystrokesfromburstingblood vessels.??Scientistswarnthatitistoosoontoknowifthe effectwouldbethesameamongpeopleinothercountries.Theynotethatthe peopleinLinxianeatfoodsthatlacknecessaryvitaminsandminerals.Chinese officialswillcontinuetorecordthehealthrecordsofthepeopleinLinxian formanyyears.Fornowofficialsreportedlyareconsideringusingthe.results ofthestudy.TheywanttofindawaytoimprovethehealthofpeopleinLinxian andothersmalltownsinChina.AmongthescientiststhatdidthestudytherearemoreChinesethanAmericans.
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