首页
试卷库
试题库
当前位置:
X题卡
>
所有题目
>
题目详情
Vitamins are another essential requirement for health. There are about florty, known vitamins, lint ...
查看本题答案
包含此试题的试卷
卫生类《简单单选》真题及答案
点击查看
你可能感兴趣的试题
Vitaminsareorganiccompoundsnecessaryinsmallamounts
Itisessentialthatpeopleenoughvitaminseveryday.
have
had
must have
will have
Vitaminsareorganiccompoundsnecessaryinsmallamounts
Vitaminsareanotheressentialrequirementforhealth.Th
citrus fruit
fruit in dark color
carrots
rose - hips.
Vitaminsareanotheressentialrequirementforhealth.Th
He will be easily infected.
He will have a poor vision.
He will have smooth skin.
He will catch cold ffequently.
Vitaminsareorganiccompoundsnecessaryinsmallamounts
热门试题
更多
{{*HTML*}}请根据短文内容为每处空白确定1个最佳选项 {{B}}TakingaNapDuringthe Day{{/B}}??MedicalexpertssaymostAmericansdonotgetenough sleep.TheysaymoreAmericansneedto??{{U}}?51?{{/U}} forashortperiodinthemiddleoftheday.Theyareadvisingpeopletosleep lightly??{{U}}?52?{{/U}}continuingwithother activities.??Onestudyearlierthisyearfoundthatpersonswho sleepforafewminutesduringthedaywerelesslikelytodieof{{U}}?53 ?{{/U}}disease.Thestudyfollowedmorethan2300Greekadults {{U}}?54?{{/U}}aboutsixyears.Adultswhorestedforhalfanhourat leastthreetimesaweekhada37percentlower??{{U}}?55 ?{{/U}}ofdyingfromheartdiseasethanthosewhodidnotnap.? ?Studyorganizerssaidthestrongest{{U}}?56?{{/U}}wasinworking men.Theysaidnapsmightimprovehealthbymitigating减低tension {{U}}?57?{{/U}}bywork.??SomeEuropeanandLatin AmericanbusinesseshaveSupportedtheideaof{{U}}?58?{{/U}}formany gears.Theyurge催促peopleto{{U}}?59?{{/U}}workgohomeandhavea napbeforereturning.IntheUnitedStatessomecompaniesletworkersrest brieflyintheiroffices.Theybelievethisreducesmistakesandaccidentsand also{{U}}?60?{{/U}}theamountofworkapersoncando.? ?Sleepexpertssayitislikelythatpeople{{U}}?61?{{/U}}more mistakesatworkthanatothertimes.Theysaypeopleshouldnotcarryout importantduties{{U}}?62?{{/U}}theyfeelsleepy.Andtheysaythe ]restthingtodoistotakeanap.Abouttwentyminutesofrestisallyou {{U}}?63?{{/U}}.Expertssaythisprovidesextraenergyandcan increaseyour{{U}}?64?{{/U}}untiltheendoftheday.Butexperts ?{{U}}?65?{{/U}}thatanapshouldlastnomorethantwentyto thirtyminutes.Alongernapwillputthebodyintodeepsleepandwakingup willbedifficult.
Ourlivesareintimatelyboundupwiththeirs.
Thecouncilmeetingterminatedat2o’clock.
ReducePackagingPressureincreasedrecentlyonBritishsupermarketsandretailerstoreducepackagingaspartofananti-wastecampaign.46Britaingenerates4.6milliontonsofhouseholdwasteeveryyearbypackaging.Dozensofpeoplehaveexpressedangerattheexcessofplasticwrapping.CampaignershavecalledonBritaintolearnfromotherEuropeancountries.47Whenreturnedbottlesareputinavendingmachine自动售货机thedepositisrefunded.EnvironmentalistswarnthatBritainlagsbehindinthis.Therewerereportsofgrowinguneaseamongconsumersovertheamountofpackagingtheyhavetodealwith.Tradestandardsofficersalsoobjecttoexcessivepackaging.48InresponsetoacampaignbyBritain’sTheIndependentnewspaperleadingsupermarketshavepointedtovariousinitiativestowinthepublicconfidence.49Butcampaignerssaidretailersandthegovernmentcouldlearnmuchfromanti-wastepracticesontheContinent.InSwedennon-recyclablebatterieshavebeentaxedsince1991toencourageaswitchtoalternatives.50InGermanyplasticbagsareunheardofinsupermarketsanddepositsarepaidforreusableplasticandglassbeveragebottles. 49
{{*HTML*}}请根据短文内容为每处空白确定1个最佳选项 {{B}}TakingaNapDuringthe Day{{/B}}??MedicalexpertssaymostAmericansdonotgetenough sleep.TheysaymoreAmericansneedto??{{U}}?51?{{/U}} forashortperiodinthemiddleoftheday.Theyareadvisingpeopletosleep lightly??{{U}}?52?{{/U}}continuingwithother activities.??Onestudyearlierthisyearfoundthatpersonswho sleepforafewminutesduringthedaywerelesslikelytodieof{{U}}?53 ?{{/U}}disease.Thestudyfollowedmorethan2300Greekadults {{U}}?54?{{/U}}aboutsixyears.Adultswhorestedforhalfanhourat leastthreetimesaweekhada37percentlower??{{U}}?55 ?{{/U}}ofdyingfromheartdiseasethanthosewhodidnotnap.? ?Studyorganizerssaidthestrongest{{U}}?56?{{/U}}wasinworking men.Theysaidnapsmightimprovehealthbymitigating减低tension {{U}}?57?{{/U}}bywork.??SomeEuropeanandLatin AmericanbusinesseshaveSupportedtheideaof{{U}}?58?{{/U}}formany gears.Theyurge催促peopleto{{U}}?59?{{/U}}workgohomeandhavea napbeforereturning.IntheUnitedStatessomecompaniesletworkersrest brieflyintheiroffices.Theybelievethisreducesmistakesandaccidentsand also{{U}}?60?{{/U}}theamountofworkapersoncando.? ?Sleepexpertssayitislikelythatpeople{{U}}?61?{{/U}}more mistakesatworkthanatothertimes.Theysaypeopleshouldnotcarryout importantduties{{U}}?62?{{/U}}theyfeelsleepy.Andtheysaythe ]restthingtodoistotakeanap.Abouttwentyminutesofrestisallyou {{U}}?63?{{/U}}.Expertssaythisprovidesextraenergyandcan increaseyour{{U}}?64?{{/U}}untiltheendoftheday.Butexperts ?{{U}}?65?{{/U}}thatanapshouldlastnomorethantwentyto thirtyminutes.Alongernapwillputthebodyintodeepsleepandwakingup willbedifficult.
{{*HTML*}}请根据短文内容为每处空白确定1个最佳选项 {{B}}TakingaNapDuringthe Day{{/B}}??MedicalexpertssaymostAmericansdonotgetenough sleep.TheysaymoreAmericansneedto??{{U}}?51?{{/U}} forashortperiodinthemiddleoftheday.Theyareadvisingpeopletosleep lightly??{{U}}?52?{{/U}}continuingwithother activities.??Onestudyearlierthisyearfoundthatpersonswho sleepforafewminutesduringthedaywerelesslikelytodieof{{U}}?53 ?{{/U}}disease.Thestudyfollowedmorethan2300Greekadults {{U}}?54?{{/U}}aboutsixyears.Adultswhorestedforhalfanhourat leastthreetimesaweekhada37percentlower??{{U}}?55 ?{{/U}}ofdyingfromheartdiseasethanthosewhodidnotnap.? ?Studyorganizerssaidthestrongest{{U}}?56?{{/U}}wasinworking men.Theysaidnapsmightimprovehealthbymitigating减低tension {{U}}?57?{{/U}}bywork.??SomeEuropeanandLatin AmericanbusinesseshaveSupportedtheideaof{{U}}?58?{{/U}}formany gears.Theyurge催促peopleto{{U}}?59?{{/U}}workgohomeandhavea napbeforereturning.IntheUnitedStatessomecompaniesletworkersrest brieflyintheiroffices.Theybelievethisreducesmistakesandaccidentsand also{{U}}?60?{{/U}}theamountofworkapersoncando.? ?Sleepexpertssayitislikelythatpeople{{U}}?61?{{/U}}more mistakesatworkthanatothertimes.Theysaypeopleshouldnotcarryout importantduties{{U}}?62?{{/U}}theyfeelsleepy.Andtheysaythe ]restthingtodoistotakeanap.Abouttwentyminutesofrestisallyou {{U}}?63?{{/U}}.Expertssaythisprovidesextraenergyandcan increaseyour{{U}}?64?{{/U}}untiltheendoftheday.Butexperts ?{{U}}?65?{{/U}}thatanapshouldlastnomorethantwentyto thirtyminutes.Alongernapwillputthebodyintodeepsleepandwakingup willbedifficult.
ADolphinandanAstronomer Onedayin1963adolphinnamedElvarandafamousastronomerCarlSaganwereplayingalittlegame.Theastronomerwasvisitinganinstitutewhichwaslookingintothewaydolphinscommunicatewitheachother.Saganwasstandingontheedgeofoneofthetankswhereseveralofthesefriendlyhighlyintelligentcreatureswerekept.Elvarhadjustswumupalongsidehimandhadturnedonhisback. ThedolphinwantedSagantoscratchhisstomachagainastheastronomerhaddonetwicebefore.ElvarlookedupatSaganwaiting.Thenafteraminuteorsothedolphinleaptupthroughthewaterandmadeasoundjustlikethewordmore.Theastonishedastronomerwenttothedirectoroftheinstituteandtoldhimabouttheincident.’Ohyes.That’soneofthewordsheknows’thedirectorsaidshowingnosurpriseatall. Dolphinshavebiggerbraininproportiontotheirbodysizethanhumanshaveandithasbeenknownforalongtimethattheycanmakeanumberofsounds.Whatismorethesesoundsseemtohavedifferentfunctionssuchaswarningeachotherofdanger.Soundtravelsmuchfasterandmuchfurtherinwaterthanitdoesinair.Thatiswhythepartsofthebrainthatdealwithsoundaremuchbetterdevelopedindolphinthaninhumans.Butcanitbesaidthatdolphinshavea’language’intherealsenseoftheword?Scientistsdon’tagreeonthis. Alanguageisnotjustacollectionofsoundsorevenwords.Alanguagehasastructureandwhatwecallagrammar.Thestructureandgrammarofalanguagehelptogiveitmeaning.ForexamplethetwoquestionsWholovesMary?andWhodoesMarylove?meanverydifferentthings.Ifyoustoptothinkaboutityouwillseethatthisdifferencedoesn’tcomefromthewordsinthequestionbutfromthedifferenceinstructure.ThatiswhythequestionCandolphinsspeak?can’tbeanswereduntilwefindoutifdolphinsnotonlymakesoundsbutalsoarrangetheminagrammaticalorderwhichaffectstheirmeaning. Soundscanbecalledalanguageonlywhentheyhaveastructureandagrammar.
{{*HTML*}}{{B}}第三篇{{/B}} {{B}}YouthEmancipationin Spain{{/B}}??TheSpanishGovernmentissoworriedaboutthenumber ofyoungadultsstilllivingwiththeirparents?thatithasdecidedto helpthemleavethenest.??Around55percentofpeopleaged18434 inSpainstillsleepintheirparents’homesaysthelatestre-portfromthe country’sstate-runInstituteofYouth.??Tocoax劝诱youngpeople fromtheirhomestheInstitutestartedaYouthEmancipation解放programmethis month.Theprogrammeoffersguidanceinfindingroomsandjobs.? ?Economistsblameyoungpeople’sfamilydependenceonthe precarious不稳定的labourmarketandincreasinghousingprices.Housingpriceshave risen17percentayearsince2000.??Culturalreasonsalso contributetotheproblemsaysociologists社会学家.FamilytiesinsouthEurope ?--ItalyPortugalandGreece--arestrongerthanthoseinmiddleand northEuropesaidSpanishsoiologist?AlmudenaMorenoMinguezinher reportTheLateEmancipationofSpanishYouth.Keyfor Understanding.??IngeneralyoungpeopleinSpainfirmly believeinthefamilyasthemainbodyaroundwhichtheirprivatelifeis organizedsaidMinguez.??InSpain--especiallyinthe countrysideitisnotuncommontofindentiregroupsofauntsunclescousins niecesandnephews外甥/侄子alllivingonthesamestreet.Theyregularlyget togetherforSunday?dinner.??Parents’toleranceisanother factor.Spanishparentsacceptlate-nightpartyingandare{{B}}waryof{{/B}} setting?bedtimerules.??Achildcanarrivehomeat whatevertimehewants.Ifparentscomplainhe’llputupafightandcallthe fatherafascistsaidJoséAntonioGómezYanezasociologistatCarlosⅢ UniversityinMadrid.??Mothers’willingnesstodochildren’s householdchores家务worsenstheproblem.DionisioMassoa60-year-oldin Madridhasthreechildrenintheir20s.Theeldest28hasagirlfriendanda job.Butlifewithmumisgood.??Hismumdoesthewashandcooks forhim;intheendheliveswellMassosaid.TheYouthEmancipationprogrammeaimsathelpingyoungpeople
ADolphinandanAstronomer Onedayin1963adolphinnamedElvarandafamousastronomerCarlSaganwereplayingalittlegame.Theastronomerwasvisitinganinstitutewhichwaslookingintothewaydolphinscommunicatewitheachother.Saganwasstandingontheedgeofoneofthetankswhereseveralofthesefriendlyhighlyintelligentcreatureswerekept.Elvarhadjustswumupalongsidehimandhadturnedonhisback. ThedolphinwantedSagantoscratchhisstomachagainastheastronomerhaddonetwicebefore.ElvarlookedupatSaganwaiting.Thenafteraminuteorsothedolphinleaptupthroughthewaterandmadeasoundjustlikethewordmore.Theastonishedastronomerwenttothedirectoroftheinstituteandtoldhimabouttheincident.’Ohyes.That’soneofthewordsheknows’thedirectorsaidshowingnosurpriseatall. Dolphinshavebiggerbraininproportiontotheirbodysizethanhumanshaveandithasbeenknownforalongtimethattheycanmakeanumberofsounds.Whatismorethesesoundsseemtohavedifferentfunctionssuchaswarningeachotherofdanger.Soundtravelsmuchfasterandmuchfurtherinwaterthanitdoesinair.Thatiswhythepartsofthebrainthatdealwithsoundaremuchbetterdevelopedindolphinthaninhumans.Butcanitbesaidthatdolphinshavea’language’intherealsenseoftheword?Scientistsdon’tagreeonthis. Alanguageisnotjustacollectionofsoundsorevenwords.Alanguagehasastructureandwhatwecallagrammar.Thestructureandgrammarofalanguagehelptogiveitmeaning.ForexamplethetwoquestionsWholovesMary?andWhodoesMarylove?meanverydifferentthings.Ifyoustoptothinkaboutityouwillseethatthisdifferencedoesn’tcomefromthewordsinthequestionbutfromthedifferenceinstructure.ThatiswhythequestionCandolphinsspeak?can’tbeanswereduntilwefindoutifdolphinsnotonlymakesoundsbutalsoarrangetheminagrammaticalorderwhichaffectstheirmeaning. Theastronomerwasnotinterestedinthewaydolphinscommunicatewitheachother.
{{*HTML*}}{{B}}第三篇{{/B}} {{B}}YouthEmancipationin Spain{{/B}}??TheSpanishGovernmentissoworriedaboutthenumber ofyoungadultsstilllivingwiththeirparents?thatithasdecidedto helpthemleavethenest.??Around55percentofpeopleaged18434 inSpainstillsleepintheirparents’homesaysthelatestre-portfromthe country’sstate-runInstituteofYouth.??Tocoax劝诱youngpeople fromtheirhomestheInstitutestartedaYouthEmancipation解放programmethis month.Theprogrammeoffersguidanceinfindingroomsandjobs.? ?Economistsblameyoungpeople’sfamilydependenceonthe precarious不稳定的labourmarketandincreasinghousingprices.Housingpriceshave risen17percentayearsince2000.??Culturalreasonsalso contributetotheproblemsaysociologists社会学家.FamilytiesinsouthEurope ?--ItalyPortugalandGreece--arestrongerthanthoseinmiddleand northEuropesaidSpanishsoiologist?AlmudenaMorenoMinguezinher reportTheLateEmancipationofSpanishYouth.Keyfor Understanding.??IngeneralyoungpeopleinSpainfirmly believeinthefamilyasthemainbodyaroundwhichtheirprivatelifeis organizedsaidMinguez.??InSpain--especiallyinthe countrysideitisnotuncommontofindentiregroupsofauntsunclescousins niecesandnephews外甥/侄子alllivingonthesamestreet.Theyregularlyget togetherforSunday?dinner.??Parents’toleranceisanother factor.Spanishparentsacceptlate-nightpartyingandare{{B}}waryof{{/B}} setting?bedtimerules.??Achildcanarrivehomeat whatevertimehewants.Ifparentscomplainhe’llputupafightandcallthe fatherafascistsaidJoséAntonioGómezYanezasociologistatCarlosⅢ UniversityinMadrid.??Mothers’willingnesstodochildren’s householdchores家务worsenstheproblem.DionisioMassoa60-year-oldin Madridhasthreechildrenintheir20s.Theeldest28hasagirlfriendanda job.Butlifewithmumisgood.??Hismumdoesthewashandcooks forhim;intheendheliveswellMassosaid.Thephrasewaryofinparagraph8couldbebestreplacedby
{{*HTML*}}{{B}}第二篇{{/B}} {{B}}Mind-reading Machine{{/B}}??AteamofresearchersinCaliforniahasdevelopeda waytopredictwhatkindsofobjectspeoplearelookingatbyscanning扫描what’s happeningintheirbrains.??Whenyoulookatsomethingyoureyes sendasignalaboutthatobjecttoyourbrain.Differentregions?ofthe brainprocesstheinformationyoureyessend.Cellsinyourbraincalled neurons神经元areresponsibleforthisprocessing.??The fMRlfunctionalMagneticResonanceImaging功能怕磁振造影brainscanscouldgenerally matchelectricalactivityinthebraintothebasicshapeofapicturethat someonewaslookingat.??Likeceilsanywhereelseinyourbody activeneuronsuseoxygen.Bloodbringsoxygentotheneuronsandthemore activeaneuronisthemoreoxygenitwillconsume.Themoreactivearegionof thebrainthemoreactiveitsneuronsandinturnthemorebloodwilltravel tothatregion.AndbyusingfMRIscientistscanvisualize使显现whichparts ofthebrainreceivemoreoxygen-richblood--andthereforewhichpartsare workingtoprocessinformation.??AnfMRImachineisadevicethat scansthebrainandmeasureschangesinbloodflowtothebrain.Thetechnology showsresearchershowbrainactivitychangeswhenapersonthinkslooksat somethingorcarriesoutanactivitylikespeakingorreading.By {{B}}highlightingtheareasofthebrainatwork{{/B}}whenapersonlooksat differentimagesfMRImayhelpscientistsdeterminespecificpatternsofbrain activityassociated?withdifferentkindsofimages.??The Californiaresearcherstestedbrainactivitybyhavingtwovolunteersview hundredsofpicturesofeverydayobjectslikepeopleanimalsandfruits.The scientistsusedanfMRImachinetorecordthevolunteers’?brainactivity witheachphotographtheylookedat.Differentobjectscauseddifferentregions ofthevolunteers’brainstolightuponthescanindicatingactivity.The scientistsusedthisinformationtobuildamodeltopredicthowthebrainmight respondtoanyimagetheeyessee.??Inasecondtestthe scientistsaskedthevolunteerstolookat120newpictures.Likebeforetheir brainswerescannedeverytimetheylookedatanewimage.Thistimethe scientistsusedtheirmodeltomatchthefMRIscanstotheimage.Forexample ifascaninthesecondtestshowedthesamepatternofbrainactivitythatwas stronglyrelatedtopicturesofapplesinthefirsttesttheirmodelwouldhave predicted?thevolunteerswerelookingat apples.ThefunctionofanfMRImachineis
Thesecretaryisexpectedtoexploreideasforpost-warreconstructionofthearea.
{{*HTML*}}请根据短文内容为每处空白确定1个最佳选项 {{B}}TakingaNapDuringthe Day{{/B}}??MedicalexpertssaymostAmericansdonotgetenough sleep.TheysaymoreAmericansneedto??{{U}}?51?{{/U}} forashortperiodinthemiddleoftheday.Theyareadvisingpeopletosleep lightly??{{U}}?52?{{/U}}continuingwithother activities.??Onestudyearlierthisyearfoundthatpersonswho sleepforafewminutesduringthedaywerelesslikelytodieof{{U}}?53 ?{{/U}}disease.Thestudyfollowedmorethan2300Greekadults {{U}}?54?{{/U}}aboutsixyears.Adultswhorestedforhalfanhourat leastthreetimesaweekhada37percentlower??{{U}}?55 ?{{/U}}ofdyingfromheartdiseasethanthosewhodidnotnap.? ?Studyorganizerssaidthestrongest{{U}}?56?{{/U}}wasinworking men.Theysaidnapsmightimprovehealthbymitigating减低tension {{U}}?57?{{/U}}bywork.??SomeEuropeanandLatin AmericanbusinesseshaveSupportedtheideaof{{U}}?58?{{/U}}formany gears.Theyurge催促peopleto{{U}}?59?{{/U}}workgohomeandhavea napbeforereturning.IntheUnitedStatessomecompaniesletworkersrest brieflyintheiroffices.Theybelievethisreducesmistakesandaccidentsand also{{U}}?60?{{/U}}theamountofworkapersoncando.? ?Sleepexpertssayitislikelythatpeople{{U}}?61?{{/U}}more mistakesatworkthanatothertimes.Theysaypeopleshouldnotcarryout importantduties{{U}}?62?{{/U}}theyfeelsleepy.Andtheysaythe ]restthingtodoistotakeanap.Abouttwentyminutesofrestisallyou {{U}}?63?{{/U}}.Expertssaythisprovidesextraenergyandcan increaseyour{{U}}?64?{{/U}}untiltheendoftheday.Butexperts ?{{U}}?65?{{/U}}thatanapshouldlastnomorethantwentyto thirtyminutes.Alongernapwillputthebodyintodeepsleepandwakingup willbedifficult.
ADolphinandanAstronomer Onedayin1963adolphinnamedElvarandafamousastronomerCarlSaganwereplayingalittlegame.Theastronomerwasvisitinganinstitutewhichwaslookingintothewaydolphinscommunicatewitheachother.Saganwasstandingontheedgeofoneofthetankswhereseveralofthesefriendlyhighlyintelligentcreatureswerekept.Elvarhadjustswumupalongsidehimandhadturnedonhisback. ThedolphinwantedSagantoscratchhisstomachagainastheastronomerhaddonetwicebefore.ElvarlookedupatSaganwaiting.Thenafteraminuteorsothedolphinleaptupthroughthewaterandmadeasoundjustlikethewordmore.Theastonishedastronomerwenttothedirectoroftheinstituteandtoldhimabouttheincident.’Ohyes.That’soneofthewordsheknows’thedirectorsaidshowingnosurpriseatall. Dolphinshavebiggerbraininproportiontotheirbodysizethanhumanshaveandithasbeenknownforalongtimethattheycanmakeanumberofsounds.Whatismorethesesoundsseemtohavedifferentfunctionssuchaswarningeachotherofdanger.Soundtravelsmuchfasterandmuchfurtherinwaterthanitdoesinair.Thatiswhythepartsofthebrainthatdealwithsoundaremuchbetterdevelopedindolphinthaninhumans.Butcanitbesaidthatdolphinshavea’language’intherealsenseoftheword?Scientistsdon’tagreeonthis. Alanguageisnotjustacollectionofsoundsorevenwords.Alanguagehasastructureandwhatwecallagrammar.Thestructureandgrammarofalanguagehelptogiveitmeaning.ForexamplethetwoquestionsWholovesMary?andWhodoesMarylove?meanverydifferentthings.Ifyoustoptothinkaboutityouwillseethatthisdifferencedoesn’tcomefromthewordsinthequestionbutfromthedifferenceinstructure.ThatiswhythequestionCandolphinsspeak?can’tbeanswereduntilwefindoutifdolphinsnotonlymakesoundsbutalsoarrangetheminagrammaticalorderwhichaffectstheirmeaning. Partsofthedolphin’sbrainareparticularlywelldevelopedtohandledifferentkindsofsound.
{{*HTML*}}{{B}}第三篇{{/B}} {{B}}YouthEmancipationin Spain{{/B}}??TheSpanishGovernmentissoworriedaboutthenumber ofyoungadultsstilllivingwiththeirparents?thatithasdecidedto helpthemleavethenest.??Around55percentofpeopleaged18434 inSpainstillsleepintheirparents’homesaysthelatestre-portfromthe country’sstate-runInstituteofYouth.??Tocoax劝诱youngpeople fromtheirhomestheInstitutestartedaYouthEmancipation解放programmethis month.Theprogrammeoffersguidanceinfindingroomsandjobs.? ?Economistsblameyoungpeople’sfamilydependenceonthe precarious不稳定的labourmarketandincreasinghousingprices.Housingpriceshave risen17percentayearsince2000.??Culturalreasonsalso contributetotheproblemsaysociologists社会学家.FamilytiesinsouthEurope ?--ItalyPortugalandGreece--arestrongerthanthoseinmiddleand northEuropesaidSpanishsoiologist?AlmudenaMorenoMinguezinher reportTheLateEmancipationofSpanishYouth.Keyfor Understanding.??IngeneralyoungpeopleinSpainfirmly believeinthefamilyasthemainbodyaroundwhichtheirprivatelifeis organizedsaidMinguez.??InSpain--especiallyinthe countrysideitisnotuncommontofindentiregroupsofauntsunclescousins niecesandnephews外甥/侄子alllivingonthesamestreet.Theyregularlyget togetherforSunday?dinner.??Parents’toleranceisanother factor.Spanishparentsacceptlate-nightpartyingandare{{B}}waryof{{/B}} setting?bedtimerules.??Achildcanarrivehomeat whatevertimehewants.Ifparentscomplainhe’llputupafightandcallthe fatherafascistsaidJoséAntonioGómezYanezasociologistatCarlosⅢ UniversityinMadrid.??Mothers’willingnesstodochildren’s householdchores家务worsenstheproblem.DionisioMassoa60-year-oldin Madridhasthreechildrenintheir20s.Theeldest28hasagirlfriendanda job.Butlifewithmumisgood.??Hismumdoesthewashandcooks forhim;intheendheliveswellMassosaid.Youngpeople’sfamilydependencecanbeattributedtoallthefollowingfactorsEXCEPT
Ourstatisticsshowthatweconsumeallthatwearecapableofproducing.
ReducePackagingPressureincreasedrecentlyonBritishsupermarketsandretailerstoreducepackagingaspartofananti-wastecampaign.46Britaingenerates4.6milliontonsofhouseholdwasteeveryyearbypackaging.Dozensofpeoplehaveexpressedangerattheexcessofplasticwrapping.CampaignershavecalledonBritaintolearnfromotherEuropeancountries.47Whenreturnedbottlesareputinavendingmachine自动售货机thedepositisrefunded.EnvironmentalistswarnthatBritainlagsbehindinthis.Therewerereportsofgrowinguneaseamongconsumersovertheamountofpackagingtheyhavetodealwith.Tradestandardsofficersalsoobjecttoexcessivepackaging.48InresponsetoacampaignbyBritain’sTheIndependentnewspaperleadingsupermarketshavepointedtovariousinitiativestowinthepublicconfidence.49Butcampaignerssaidretailersandthegovernmentcouldlearnmuchfromanti-wastepracticesontheContinent.InSwedennon-recyclablebatterieshavebeentaxedsince1991toencourageaswitchtoalternatives.50InGermanyplasticbagsareunheardofinsupermarketsanddepositsarepaidforreusableplasticandglassbeveragebottles. 47
第二篇LivingwithComputer AftertoolongontheNetevenaphonecallcanbeashock.Myboyfriend’sLiverpudianaccentsuddenlybecomeshardtounderstandaftertheclarityofhiswordsonscreen;asecretary’stoneseemsmorerejectingthanI’dimagineditwouldbe.Timeitselfbecomesfluid-hoursbecomeminutesandalternatelysecondsstretchintodays.Weekendsonceahighlightofmyweekarenowjusttwoordinarydays. ForthelastthreeyearssinceIstoppedworkingasaproducerforCharlieRoseIhavedonemuchofmyworkasatele-commuter远程交谈者.IsubmitarticlesandeditthemviaE-mailandcommunicatewithcolleaguesonInternetmailinglists.MyboyfriendslivesinEnglandsomuchofourrelationshipiscomputer-mediated. IfIdesiredIcouldstayinsideforweekswithoutwantinganything.Icanorderfoodandmanagemymoneyloveandwork.InfactattimesIhavespentaslongasthreeweeksaloneathomegoingoutonlytogetmailandbuynewspapersandgroceries.Iwatchedmostoftheblizzard暴风雪of’96onTV. Butafterawhilelifeitselfbeginstofeelunreal.IstarttofeelasthoughI’vemergedwithmymachinestakingdatainspittingthembackoutjustanothernode节点ontheNet.Othersonlinereportthesamesymptoms.Westarttostronglydisliketheoutsideformsofsocializing.It’slikeattendinganA.A.meetinginabarwitheveryoneholdingahalf-sippeddrink.WehavebecometheNetopponents’worstnightmare. Whatfirstseemedlikealuxurycrawlingfrombedtocomputernotworryingabouthairandclothesandfacehasbecomeanavoidancealackofdiscipline.Andonceyoustartreplacingrealhumancontactwithcyber-interaction网上交流comingbackoutofthecavecanbequitedifficult. AttimesIturnonthetelevisionandjustleaveittochatterinthebackgroundsomethingthatI’dneverdonepreviously.Thevoicesoftheprogramssoothe安慰mebutthenI’mjarred使感不快bythecommercials.Ifindmyselfsuckedinbysoapoperasorcompulsively强制性地needingtokeepupwiththelatestnewsandtheweather.DatelineFrontlineNightlineCNNeverypossibleangleofeverystoryoverandoverandoverevenwhentheyareofnopossibleusetome.Workmoversfromforegroundtobackground. Comparedwiththeclearwordsofherboyfriendonscreenhisaccentis
{{*HTML*}}{{B}}第二篇{{/B}} {{B}}Mind-reading Machine{{/B}}??AteamofresearchersinCaliforniahasdevelopeda waytopredictwhatkindsofobjectspeoplearelookingatbyscanning扫描what’s happeningintheirbrains.??Whenyoulookatsomethingyoureyes sendasignalaboutthatobjecttoyourbrain.Differentregions?ofthe brainprocesstheinformationyoureyessend.Cellsinyourbraincalled neurons神经元areresponsibleforthisprocessing.??The fMRlfunctionalMagneticResonanceImaging功能怕磁振造影brainscanscouldgenerally matchelectricalactivityinthebraintothebasicshapeofapicturethat someonewaslookingat.??Likeceilsanywhereelseinyourbody activeneuronsuseoxygen.Bloodbringsoxygentotheneuronsandthemore activeaneuronisthemoreoxygenitwillconsume.Themoreactivearegionof thebrainthemoreactiveitsneuronsandinturnthemorebloodwilltravel tothatregion.AndbyusingfMRIscientistscanvisualize使显现whichparts ofthebrainreceivemoreoxygen-richblood--andthereforewhichpartsare workingtoprocessinformation.??AnfMRImachineisadevicethat scansthebrainandmeasureschangesinbloodflowtothebrain.Thetechnology showsresearchershowbrainactivitychangeswhenapersonthinkslooksat somethingorcarriesoutanactivitylikespeakingorreading.By {{B}}highlightingtheareasofthebrainatwork{{/B}}whenapersonlooksat differentimagesfMRImayhelpscientistsdeterminespecificpatternsofbrain activityassociated?withdifferentkindsofimages.??The Californiaresearcherstestedbrainactivitybyhavingtwovolunteersview hundredsofpicturesofeverydayobjectslikepeopleanimalsandfruits.The scientistsusedanfMRImachinetorecordthevolunteers’?brainactivity witheachphotographtheylookedat.Differentobjectscauseddifferentregions ofthevolunteers’brainstolightuponthescanindicatingactivity.The scientistsusedthisinformationtobuildamodeltopredicthowthebrainmight respondtoanyimagetheeyessee.??Inasecondtestthe scientistsaskedthevolunteerstolookat120newpictures.Likebeforetheir brainswerescannedeverytimetheylookedatanewimage.Thistimethe scientistsusedtheirmodeltomatchthefMRIscanstotheimage.Forexample ifascaninthesecondtestshowedthesamepatternofbrainactivitythatwas stronglyrelatedtopicturesofapplesinthefirsttesttheirmodelwouldhave predicted?thevolunteerswerelookingat apples.Theresearchersexperimentedon
第二篇LivingwithComputer AftertoolongontheNetevenaphonecallcanbeashock.Myboyfriend’sLiverpudianaccentsuddenlybecomeshardtounderstandaftertheclarityofhiswordsonscreen;asecretary’stoneseemsmorerejectingthanI’dimagineditwouldbe.Timeitselfbecomesfluid-hoursbecomeminutesandalternatelysecondsstretchintodays.Weekendsonceahighlightofmyweekarenowjusttwoordinarydays. ForthelastthreeyearssinceIstoppedworkingasaproducerforCharlieRoseIhavedonemuchofmyworkasatele-commuter远程交谈者.IsubmitarticlesandeditthemviaE-mailandcommunicatewithcolleaguesonInternetmailinglists.MyboyfriendslivesinEnglandsomuchofourrelationshipiscomputer-mediated. IfIdesiredIcouldstayinsideforweekswithoutwantinganything.Icanorderfoodandmanagemymoneyloveandwork.InfactattimesIhavespentaslongasthreeweeksaloneathomegoingoutonlytogetmailandbuynewspapersandgroceries.Iwatchedmostoftheblizzard暴风雪of’96onTV. Butafterawhilelifeitselfbeginstofeelunreal.IstarttofeelasthoughI’vemergedwithmymachinestakingdatainspittingthembackoutjustanothernode节点ontheNet.Othersonlinereportthesamesymptoms.Westarttostronglydisliketheoutsideformsofsocializing.It’slikeattendinganA.A.meetinginabarwitheveryoneholdingahalf-sippeddrink.WehavebecometheNetopponents’worstnightmare. Whatfirstseemedlikealuxurycrawlingfrombedtocomputernotworryingabouthairandclothesandfacehasbecomeanavoidancealackofdiscipline.Andonceyoustartreplacingrealhumancontactwithcyber-interaction网上交流comingbackoutofthecavecanbequitedifficult. AttimesIturnonthetelevisionandjustleaveittochatterinthebackgroundsomethingthatI’dneverdonepreviously.Thevoicesoftheprogramssoothe安慰mebutthenI’mjarred使感不快bythecommercials.Ifindmyselfsuckedinbysoapoperasorcompulsively强制性地needingtokeepupwiththelatestnewsandtheweather.DatelineFrontlineNightlineCNNeverypossibleangleofeverystoryoverandoverandoverevenwhentheyareofnopossibleusetome.Workmoversfromforegroundtobackground. Livingaloneinahousethewriterseemsto
{{*HTML*}}请根据短文内容为每处空白确定1个最佳选项 {{B}}TakingaNapDuringthe Day{{/B}}??MedicalexpertssaymostAmericansdonotgetenough sleep.TheysaymoreAmericansneedto??{{U}}?51?{{/U}} forashortperiodinthemiddleoftheday.Theyareadvisingpeopletosleep lightly??{{U}}?52?{{/U}}continuingwithother activities.??Onestudyearlierthisyearfoundthatpersonswho sleepforafewminutesduringthedaywerelesslikelytodieof{{U}}?53 ?{{/U}}disease.Thestudyfollowedmorethan2300Greekadults {{U}}?54?{{/U}}aboutsixyears.Adultswhorestedforhalfanhourat leastthreetimesaweekhada37percentlower??{{U}}?55 ?{{/U}}ofdyingfromheartdiseasethanthosewhodidnotnap.? ?Studyorganizerssaidthestrongest{{U}}?56?{{/U}}wasinworking men.Theysaidnapsmightimprovehealthbymitigating减低tension {{U}}?57?{{/U}}bywork.??SomeEuropeanandLatin AmericanbusinesseshaveSupportedtheideaof{{U}}?58?{{/U}}formany gears.Theyurge催促peopleto{{U}}?59?{{/U}}workgohomeandhavea napbeforereturning.IntheUnitedStatessomecompaniesletworkersrest brieflyintheiroffices.Theybelievethisreducesmistakesandaccidentsand also{{U}}?60?{{/U}}theamountofworkapersoncando.? ?Sleepexpertssayitislikelythatpeople{{U}}?61?{{/U}}more mistakesatworkthanatothertimes.Theysaypeopleshouldnotcarryout importantduties{{U}}?62?{{/U}}theyfeelsleepy.Andtheysaythe ]restthingtodoistotakeanap.Abouttwentyminutesofrestisallyou {{U}}?63?{{/U}}.Expertssaythisprovidesextraenergyandcan increaseyour{{U}}?64?{{/U}}untiltheendoftheday.Butexperts ?{{U}}?65?{{/U}}thatanapshouldlastnomorethantwentyto thirtyminutes.Alongernapwillputthebodyintodeepsleepandwakingup willbedifficult.
{{*HTML*}}请根据短文内容为每处空白确定1个最佳选项 {{B}}TakingaNapDuringthe Day{{/B}}??MedicalexpertssaymostAmericansdonotgetenough sleep.TheysaymoreAmericansneedto??{{U}}?51?{{/U}} forashortperiodinthemiddleoftheday.Theyareadvisingpeopletosleep lightly??{{U}}?52?{{/U}}continuingwithother activities.??Onestudyearlierthisyearfoundthatpersonswho sleepforafewminutesduringthedaywerelesslikelytodieof{{U}}?53 ?{{/U}}disease.Thestudyfollowedmorethan2300Greekadults {{U}}?54?{{/U}}aboutsixyears.Adultswhorestedforhalfanhourat leastthreetimesaweekhada37percentlower??{{U}}?55 ?{{/U}}ofdyingfromheartdiseasethanthosewhodidnotnap.? ?Studyorganizerssaidthestrongest{{U}}?56?{{/U}}wasinworking men.Theysaidnapsmightimprovehealthbymitigating减低tension {{U}}?57?{{/U}}bywork.??SomeEuropeanandLatin AmericanbusinesseshaveSupportedtheideaof{{U}}?58?{{/U}}formany gears.Theyurge催促peopleto{{U}}?59?{{/U}}workgohomeandhavea napbeforereturning.IntheUnitedStatessomecompaniesletworkersrest brieflyintheiroffices.Theybelievethisreducesmistakesandaccidentsand also{{U}}?60?{{/U}}theamountofworkapersoncando.? ?Sleepexpertssayitislikelythatpeople{{U}}?61?{{/U}}more mistakesatworkthanatothertimes.Theysaypeopleshouldnotcarryout importantduties{{U}}?62?{{/U}}theyfeelsleepy.Andtheysaythe ]restthingtodoistotakeanap.Abouttwentyminutesofrestisallyou {{U}}?63?{{/U}}.Expertssaythisprovidesextraenergyandcan increaseyour{{U}}?64?{{/U}}untiltheendoftheday.Butexperts ?{{U}}?65?{{/U}}thatanapshouldlastnomorethantwentyto thirtyminutes.Alongernapwillputthebodyintodeepsleepandwakingup willbedifficult.
Hetalkstoughbuthasatenderheart.
ADolphinandanAstronomer Onedayin1963adolphinnamedElvarandafamousastronomerCarlSaganwereplayingalittlegame.Theastronomerwasvisitinganinstitutewhichwaslookingintothewaydolphinscommunicatewitheachother.Saganwasstandingontheedgeofoneofthetankswhereseveralofthesefriendlyhighlyintelligentcreatureswerekept.Elvarhadjustswumupalongsidehimandhadturnedonhisback. ThedolphinwantedSagantoscratchhisstomachagainastheastronomerhaddonetwicebefore.ElvarlookedupatSaganwaiting.Thenafteraminuteorsothedolphinleaptupthroughthewaterandmadeasoundjustlikethewordmore.Theastonishedastronomerwenttothedirectoroftheinstituteandtoldhimabouttheincident.’Ohyes.That’soneofthewordsheknows’thedirectorsaidshowingnosurpriseatall. Dolphinshavebiggerbraininproportiontotheirbodysizethanhumanshaveandithasbeenknownforalongtimethattheycanmakeanumberofsounds.Whatismorethesesoundsseemtohavedifferentfunctionssuchaswarningeachotherofdanger.Soundtravelsmuchfasterandmuchfurtherinwaterthanitdoesinair.Thatiswhythepartsofthebrainthatdealwithsoundaremuchbetterdevelopedindolphinthaninhumans.Butcanitbesaidthatdolphinshavea’language’intherealsenseoftheword?Scientistsdon’tagreeonthis. Alanguageisnotjustacollectionofsoundsorevenwords.Alanguagehasastructureandwhatwecallagrammar.Thestructureandgrammarofalanguagehelptogiveitmeaning.ForexamplethetwoquestionsWholovesMary?andWhodoesMarylove?meanverydifferentthings.Ifyoustoptothinkaboutityouwillseethatthisdifferencedoesn’tcomefromthewordsinthequestionbutfromthedifferenceinstructure.ThatiswhythequestionCandolphinsspeak?can’tbeanswereduntilwefindoutifdolphinsnotonlymakesoundsbutalsoarrangetheminagrammaticalorderwhichaffectstheirmeaning. Dolphinstravelfasterinwaterthananyotheranimals.
Howeverbadthesituationisthemajorityisunwillingtoriskchange.
Thebookprovidesaconciseanalysisofthecountry’shistory.
{{*HTML*}}请根据短文内容为每处空白确定1个最佳选项 {{B}}TakingaNapDuringthe Day{{/B}}??MedicalexpertssaymostAmericansdonotgetenough sleep.TheysaymoreAmericansneedto??{{U}}?51?{{/U}} forashortperiodinthemiddleoftheday.Theyareadvisingpeopletosleep lightly??{{U}}?52?{{/U}}continuingwithother activities.??Onestudyearlierthisyearfoundthatpersonswho sleepforafewminutesduringthedaywerelesslikelytodieof{{U}}?53 ?{{/U}}disease.Thestudyfollowedmorethan2300Greekadults {{U}}?54?{{/U}}aboutsixyears.Adultswhorestedforhalfanhourat leastthreetimesaweekhada37percentlower??{{U}}?55 ?{{/U}}ofdyingfromheartdiseasethanthosewhodidnotnap.? ?Studyorganizerssaidthestrongest{{U}}?56?{{/U}}wasinworking men.Theysaidnapsmightimprovehealthbymitigating减低tension {{U}}?57?{{/U}}bywork.??SomeEuropeanandLatin AmericanbusinesseshaveSupportedtheideaof{{U}}?58?{{/U}}formany gears.Theyurge催促peopleto{{U}}?59?{{/U}}workgohomeandhavea napbeforereturning.IntheUnitedStatessomecompaniesletworkersrest brieflyintheiroffices.Theybelievethisreducesmistakesandaccidentsand also{{U}}?60?{{/U}}theamountofworkapersoncando.? ?Sleepexpertssayitislikelythatpeople{{U}}?61?{{/U}}more mistakesatworkthanatothertimes.Theysaypeopleshouldnotcarryout importantduties{{U}}?62?{{/U}}theyfeelsleepy.Andtheysaythe ]restthingtodoistotakeanap.Abouttwentyminutesofrestisallyou {{U}}?63?{{/U}}.Expertssaythisprovidesextraenergyandcan increaseyour{{U}}?64?{{/U}}untiltheendoftheday.Butexperts ?{{U}}?65?{{/U}}thatanapshouldlastnomorethantwentyto thirtyminutes.Alongernapwillputthebodyintodeepsleepandwakingup willbedifficult.
第一篇SaltyRicePlantBoostsHarvests Britishscientistsarebreedinganewgenerationofriceplantsthatwillbeabletogrowinsoilcontainingsaltwater.Theirworkmayenableabandonedfarmstobecomeproductiveoncemore. TimFlowersandTonyYeofromSussexUniversity’sSchoolofBiologicalScienceshavespentseveralyearsresearchinghowcropssuchasricecouldbemadetogrowinwaterthathasbecomesalty. Thepairhaverecentlybegunathree-yearprogrammefundedbytheBiotechnologyandBiologicalSciencesResearchCounciltoestablishwhichgenesenablesomeplantstosurvivesaltyconditions.Theaimistobreedthiscapabilityintocropsstartingwithrice. Itisestimatedthateachyearmorethan100hectares公顷ofagriculturallandarelostbecausesaltgetsintothesoilandstunts妨碍生长plants.Theproblemiscausedbyseveralfactors.Inthetropicsmangroves红树林thatcreateswamps沼泽andtraditionallyformedbarrierstoseawaterhavebeencutdown.IntheMediterraneanaseriesofdroughtshavecausedthewatertabletodropallowingseawatertoseep渗透in.inLatinAmericairrigationoftencausesproblemswhenwaterisevaporated蒸发bytheheatleavingsaltdepositsbehind. Excesssaltthenenterstheplantsandpreventsthemfunctioningnormally.Heavyconcentrationsofmineralsintheplantsstopthemdrawingupthewatertheyneedtosurvive. ToovercometheseproblemsFlowersandYeodecidedtobreedriceplantsthattakeinverylittlesaltandstorewhattheydoabsorbincellsthatdonotaffecttheplants’growth.Theyhavestartedtobreedthesecharacteristicsintoanewricecropbutitwilltakeabouteightharvestsbeforetheresultingseedsarereadytobeconsideredforcommercialuse. OncethecharacteristicsforsurvivingsaltysoilareknownFlowersandYeowilltrytobreedtheappropriategenesintoallmannersofcropsandplants.Landthathasbeenabandonedtonaturewillthenbeabletobloomagainprovidingmuchneededfoodinthepoorercountriesoftheworld. ThewordaffectinParagraph6couldbebestreplacedby
{{*HTML*}}请根据短文内容为每处空白确定1个最佳选项 {{B}}TakingaNapDuringthe Day{{/B}}??MedicalexpertssaymostAmericansdonotgetenough sleep.TheysaymoreAmericansneedto??{{U}}?51?{{/U}} forashortperiodinthemiddleoftheday.Theyareadvisingpeopletosleep lightly??{{U}}?52?{{/U}}continuingwithother activities.??Onestudyearlierthisyearfoundthatpersonswho sleepforafewminutesduringthedaywerelesslikelytodieof{{U}}?53 ?{{/U}}disease.Thestudyfollowedmorethan2300Greekadults {{U}}?54?{{/U}}aboutsixyears.Adultswhorestedforhalfanhourat leastthreetimesaweekhada37percentlower??{{U}}?55 ?{{/U}}ofdyingfromheartdiseasethanthosewhodidnotnap.? ?Studyorganizerssaidthestrongest{{U}}?56?{{/U}}wasinworking men.Theysaidnapsmightimprovehealthbymitigating减低tension {{U}}?57?{{/U}}bywork.??SomeEuropeanandLatin AmericanbusinesseshaveSupportedtheideaof{{U}}?58?{{/U}}formany gears.Theyurge催促peopleto{{U}}?59?{{/U}}workgohomeandhavea napbeforereturning.IntheUnitedStatessomecompaniesletworkersrest brieflyintheiroffices.Theybelievethisreducesmistakesandaccidentsand also{{U}}?60?{{/U}}theamountofworkapersoncando.? ?Sleepexpertssayitislikelythatpeople{{U}}?61?{{/U}}more mistakesatworkthanatothertimes.Theysaypeopleshouldnotcarryout importantduties{{U}}?62?{{/U}}theyfeelsleepy.Andtheysaythe ]restthingtodoistotakeanap.Abouttwentyminutesofrestisallyou {{U}}?63?{{/U}}.Expertssaythisprovidesextraenergyandcan increaseyour{{U}}?64?{{/U}}untiltheendoftheday.Butexperts ?{{U}}?65?{{/U}}thatanapshouldlastnomorethantwentyto thirtyminutes.Alongernapwillputthebodyintodeepsleepandwakingup willbedifficult.
第一篇SaltyRicePlantBoostsHarvests Britishscientistsarebreedinganewgenerationofriceplantsthatwillbeabletogrowinsoilcontainingsaltwater.Theirworkmayenableabandonedfarmstobecomeproductiveoncemore. TimFlowersandTonyYeofromSussexUniversity’sSchoolofBiologicalScienceshavespentseveralyearsresearchinghowcropssuchasricecouldbemadetogrowinwaterthathasbecomesalty. Thepairhaverecentlybegunathree-yearprogrammefundedbytheBiotechnologyandBiologicalSciencesResearchCounciltoestablishwhichgenesenablesomeplantstosurvivesaltyconditions.Theaimistobreedthiscapabilityintocropsstartingwithrice. Itisestimatedthateachyearmorethan100hectares公顷ofagriculturallandarelostbecausesaltgetsintothesoilandstunts妨碍生长plants.Theproblemiscausedbyseveralfactors.Inthetropicsmangroves红树林thatcreateswamps沼泽andtraditionallyformedbarrierstoseawaterhavebeencutdown.IntheMediterraneanaseriesofdroughtshavecausedthewatertabletodropallowingseawatertoseep渗透in.inLatinAmericairrigationoftencausesproblemswhenwaterisevaporated蒸发bytheheatleavingsaltdepositsbehind. Excesssaltthenenterstheplantsandpreventsthemfunctioningnormally.Heavyconcentrationsofmineralsintheplantsstopthemdrawingupthewatertheyneedtosurvive. ToovercometheseproblemsFlowersandYeodecidedtobreedriceplantsthattakeinverylittlesaltandstorewhattheydoabsorbincellsthatdonotaffecttheplants’growth.Theyhavestartedtobreedthesecharacteristicsintoanewricecropbutitwilltakeabouteightharvestsbeforetheresultingseedsarereadytobeconsideredforcommercialuse. OncethecharacteristicsforsurvivingsaltysoilareknownFlowersandYeowilltrytobreedtheappropriategenesintoallmannersofcropsandplants.Landthathasbeenabandonedtonaturewillthenbeabletobloomagainprovidingmuchneededfoodinthepoorercountriesoftheworld. FlowersandYeohavestartedaprogramme
热门题库
更多
理工类
卫生类
综合类
国际货运代理师
报关水平测试
报检员
物流员(四级)
助理物流师(三级)
物流师(二级)
高级物流师(一级)
物流案例分析
单证员基础理论与知识
单证员缮制与操作
国际货运代理理论与实务
外贸综合业务
外贸外语