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Stress Level Tied to Education Level People with less education suffe...
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Nurses Thephysiciansinahospitalformthecoreofthemedicalstaff.Buttheycouldnotprovideeffectivemedicalcaretotheirpatientswithoutthehelpofnumerousothermedicalworkers.Fromtheangleofthepatientsthenursingstaffisparticularlyimportant.Nursesareusuallyinclosecontactwithpatientsaslongastheyareinthehospital. Anursedoesnotstudyforasmanyyearsasadoctor.Howevereachmustbeequallytrained.Caringforsickpersonsrequiresagreatdealofpatienceandconcern.Mostnursesworklongdaysandtheyoftenmustworkatoddhoursorduringthenight. Thenursingstaffinahospitalisusuallyquitelargeandvarious.Nursingservicesafterallmustbeprovidedona24-hourbasis.Thereareprofessional专业的nursespracticalnursesnursesaidsandorderlies勤杂工.Thegeneraltermnursereferstoapersontrainedtoofferbedsidecaretosickpersons. Underthesupervision管理oftheheadnursethenursingstaffinahospitalwardmustattendtopatients’’needs.Thisresponsibilitycontinuesaroundtheclockandsonursesmustworkinshifts.Ashiftisaperiodofdutyusuallyeighthoursinlength.Thenursesonthewardrotate轮换theirshifts.Sometaketurnsworkingnightduty;othersworkoddshifts.Allofthemworkoutofacentralareaonthewardcalledthenursesstation. Anursemustalwaysbeonherguard.Shecanneveraffordtobecareless.Thisistrueinallnursingsituationsbutitisespeciallytrueintheintensivecareunit.Patientsunderintensivecarearecriticallyillandtheymustbemonitoredatalltimes.Thenurseswhodointensivecaredutyhaveoneofthemostdemandingjobsinthehospital. Thenurse’sstationistheonlyplacewherenursesinahospitalwardcanbefound.
OurcompanyiscollaboratingwithaJapanesefirmindesigninganewcomputer.
{{*HTML*}}{{B}}第三篇{{/B}} {{B}}??????? ??????????Salty RicePlantBoostsHarvests{{/B}}??Britishscientistsarebreedinga newgenerationofriceplantsthatwillbeabletogrowinsoilcontainingsalt water.Theirworkmayenableabandonedfarmstobecomeproductiveonce more.??TimFlowersandTonyYeofromSussexUniversity’sSchool ofBiologicalScienceshavespentseveralyearsresearchinghowcropssuchas ricecouldbemadetogrowinwaterthathasbecomesalty.??The pairhaverecentlybegunathree-yearprogrammefundedbytheBiotechnologyand BiologicalSciencesResearchCounciltoestablishwhichgenesenablesome plantstosurvivesaltyconditions.Theaimistobreedthiscapabilityinto cropsstartingwithrice.??Itisestimatedthateachyearmore than1Omhectares公顷ofagriculturallandarelostbecausesaltgetsintothe soilandstunts妨碍生长plants.Theproblemiscausedbyseveralfactors.Inthe tropicsmangroves红树林thatcreateswamps沼泽andtraditionallyformed barrierstoseawaterhavebeencutdown.IntheMediterraneanaseriesof droughtshavecausedthewatertabletodropallowingseawatertoseep渗透 in.InLatinAmericairrigationoftencausesproblemswhenwaterisevaporated 蒸发bytheheatleavingsaltdepositsbehind.??Excesssaltthen enterstheplantsandpreventsthemfunctioningnormally.Heavyconcentrations ofmineralsintheplantsstopthemdrawingupthewatertheyneedto survive.??ToovercometheseproblemsFlowersandYeodecidedto breedriceplantsthattakeinverylittlesaltandstorewhattheydoabsorbin cellsthatdonotaffecttheplants’growth.They’havestartedtobreedthese characteristicsintoanewricecropbutitwilltakeabouteightharvests before’theresultingseedsarereadytobeconsideredforcommercial use.??Oncethecharacteristicsforsurvivingsaltysoilare knownFlowersandYeowilltrytobreedtheappropriategenesintoallmanners ofcropsandplants.Landthathasbeenabandonedtonaturewillthenbeableto bloomagainprovidingmuchneededfoodinthepoorercountriesofthe world.ThewordaffectinParagraph6couldbebestreplacedby
MemoryClass StanFieldknowswhatagecandotoaperson’’smemoryandhe’’snottakinganychanceswithhis.Hechooseshisfoodcarefullyandgetsplentyofexercise.Healsoavoidsstresscocacolaandcigarettesmoke. What’’smoreatbreakfasteachmorningthe69-year-oldchemicalengineerswallowsaplatefulofpillsinthehopeofboostinghisbrainpower. MichelleAmoveislessthanhalfField’’sagebutnolessconcernedabouthermemory.Whileworkingroundtheclocktofinishadegreeinfilmstudiesthe33-year-oldNewYorkerhadthealarmingsensationthatshehadstoppedretaininganything.Icouldn’’tevenremembernamesshesays.IthoughtOhnoI’’mover30.It’’salldownhillfromhere.BesidesloadinguponsupplementsAmovesignedupforamemoryenhancingcourseatNewYork’’sMountSianiMedicalCenter.Andwhenshegotthereshefoundherselfsurroundedbypeoplewhowerejustasworriedasshewas. FormillionsofAmericansandespeciallyforbabyboomers生育高峰出生的人thedemandsoftheInformationAgeconflictwithasenseofdecliningphysicalpower.Whenboomerswereintheir30sand40stheylaunchedthefitnessboomsaysCynthiaGreenthepsychologistwhoteachesMountSinai’’smemoryclass.Nowwehavethemental-fitnessboomMemoryistheboomers’’newlife-crisisissue.Andofcourseamajormarketingopportunity.ThedemandforbooksandseminarshasneverbeengreatersaysJackLannomalongtimememorytrainerwhoseweeklyTVshowMindUnlimitedgoesoutto33millionhomesontheChristianNetwork.Anxiousconsumersarerushingtobuydo-it-yourselfprogramsandsupplementmakersaretryingtoselleverythingbutsawdust木屑asabrainbooster. Butbeforeyougetoutyourcheckbookafewquestionsareinorder.Doeseverydayforgetfulnesssignaldecliningbrainfunction?Ismegamemory超级记忆arealisticgoalfornormalpeople?Andifyoucouldhaveaperfectmemorywouldyoureallywantit?Untilrecentlynoonecouldaddressthoseissueswithmuchauthoritybutourknowledgeofmemoryisexploding.Newtechniquesarerevealinghowdifferentpartsofthebraininteracttopreservemeaningfulexperiences.Biologistsaretryingtounderstandtheunderlying潜在的chemicalprocessesandneuroscientists神经系统科学家arediscoveringhowagestressandotherfactorscandisruptthem.Nooneisclosetofindingthesecrettoperfectrecallbutasyou’’llseethatmaybejustaswell. Accordingtothewriterthesecrettoperfectmemory______.
MemoryClass StanFieldknowswhatagecandotoaperson’’smemoryandhe’’snottakinganychanceswithhis.Hechooseshisfoodcarefullyandgetsplentyofexercise.Healsoavoidsstresscocacolaandcigarettesmoke. What’’smoreatbreakfasteachmorningthe69-year-oldchemicalengineerswallowsaplatefulofpillsinthehopeofboostinghisbrainpower. MichelleAmoveislessthanhalfField’’sagebutnolessconcernedabouthermemory.Whileworkingroundtheclocktofinishadegreeinfilmstudiesthe33-year-oldNewYorkerhadthealarmingsensationthatshehadstoppedretaininganything.Icouldn’’tevenremembernamesshesays.IthoughtOhnoI’’mover30.It’’salldownhillfromhere.BesidesloadinguponsupplementsAmovesignedupforamemoryenhancingcourseatNewYork’’sMountSianiMedicalCenter.Andwhenshegotthereshefoundherselfsurroundedbypeoplewhowerejustasworriedasshewas. FormillionsofAmericansandespeciallyforbabyboomers生育高峰出生的人thedemandsoftheInformationAgeconflictwithasenseofdecliningphysicalpower.Whenboomerswereintheir30sand40stheylaunchedthefitnessboomsaysCynthiaGreenthepsychologistwhoteachesMountSinai’’smemoryclass.Nowwehavethemental-fitnessboomMemoryistheboomers’’newlife-crisisissue.Andofcourseamajormarketingopportunity.ThedemandforbooksandseminarshasneverbeengreatersaysJackLannomalongtimememorytrainerwhoseweeklyTVshowMindUnlimitedgoesoutto33millionhomesontheChristianNetwork.Anxiousconsumersarerushingtobuydo-it-yourselfprogramsandsupplementmakersaretryingtoselleverythingbutsawdust木屑asabrainbooster. Butbeforeyougetoutyourcheckbookafewquestionsareinorder.Doeseverydayforgetfulnesssignaldecliningbrainfunction?Ismegamemory超级记忆arealisticgoalfornormalpeople?Andifyoucouldhaveaperfectmemorywouldyoureallywantit?Untilrecentlynoonecouldaddressthoseissueswithmuchauthoritybutourknowledgeofmemoryisexploding.Newtechniquesarerevealinghowdifferentpartsofthebraininteracttopreservemeaningfulexperiences.Biologistsaretryingtounderstandtheunderlying潜在的chemicalprocessesandneuroscientists神经系统科学家arediscoveringhowagestressandotherfactorscandisruptthem.Nooneisclosetofindingthesecrettoperfectrecallbutasyou’’llseethatmaybejustaswell. Manybaby-boomerslivingintheInformationAgefeelthat______.
Thetechniciansconductedinvestigationsbeforetheyputforwardthesuggestionsatthemeeting.
AHierarchyofHormones Allofthecellsinaparticularplantstartoutwiththesamecomplementofgenes.Howthencanthesecellsdifferentiateandfromstructuresasdifferentasrootsstemsleavesandfruits?Theansweristhatonlyasmallsubsetofthegenesinaparticularkindofcellareexpressedorturnedonatagiventime.Thisisaccomplishedbyacomplexsystemofchemicalmessengersthatinplantsincludehormonesandotherregulatorymolecules.Fivemajorhormoneshavebeenidentified;auxin生长素abscisicacid脱落酸cytokinin细胞激动素hetylene乙烯andgibberellin赤霉素.Studiesofplantshavenowidentifiedanewclassofregulatorymoleculescalledoligosaccharins. Unliketheoligosaccharinsthefivewell-knownplanthormonesarepleiotropic多向性的ratherthanspecificthatiseachhasmorethanoneeffectonthegrowthanddevelopmentofplants.Thefivehavesomanysimultaneouseffectsthattheyarenotveryusefulinartificiallycontrollingthegrowthofcrops.Auxinforinstancestimulatestherateofcellelongation拉长causesshootstogrowupandrootstogrowdownandinhibitsthegrowthoflateral侧面的shoots.Auxinalsocausestheplanttodevelopavascular维管的systemtofromlateralrootsandtoproduceethylene. Thepleiotropyofthefivewell-studiedplanthormonesissomewhatanalogous类似的tothatofcertainhormonesinanimal.Forexamplehormonesfromthehypothalamus下五脑inthebrainstimulatetheanterior前面的lobeofthepituitaryglandtosynthesizeandreleasemanydifferenthormonesoneofwhichstimulatesthereleaseofhormonesfromtheadrenal肾上腺的cortex皮质|.Thesehormoneshavespecificeffectsontargetorgansalloverthebody.Onehormonestimulatesthethyroid甲状腺的glandforexampleanothertheovarian子房folliclecellsandsoforth.Inotherwordsthereisahierarchy统治集团ofhormones. Suchahierarchymayalsoexistinplants.Oligosaccharinsarefragmentsofthecellwallreleasedbyenzymes酶:differentenzymesreleasedifferentoligosaccharins.Thereareindicationsthatpleiotropicplanthormonesmayactuallyfunctionbyactivatingtheenzymesthatreleasetheseothermorespecificchemicalmessengersfromthecellwall. Thepassagesuggeststhatunlikethepleiotropiohormonesoligosaccharinscouldbeusedeffectivelyto______.
AHierarchyofHormones Allofthecellsinaparticularplantstartoutwiththesamecomplementofgenes.Howthencanthesecellsdifferentiateandfromstructuresasdifferentasrootsstemsleavesandfruits?Theansweristhatonlyasmallsubsetofthegenesinaparticularkindofcellareexpressedorturnedonatagiventime.Thisisaccomplishedbyacomplexsystemofchemicalmessengersthatinplantsincludehormonesandotherregulatorymolecules.Fivemajorhormoneshavebeenidentified;auxin生长素abscisicacid脱落酸cytokinin细胞激动素hetylene乙烯andgibberellin赤霉素.Studiesofplantshavenowidentifiedanewclassofregulatorymoleculescalledoligosaccharins. Unliketheoligosaccharinsthefivewell-knownplanthormonesarepleiotropic多向性的ratherthanspecificthatiseachhasmorethanoneeffectonthegrowthanddevelopmentofplants.Thefivehavesomanysimultaneouseffectsthattheyarenotveryusefulinartificiallycontrollingthegrowthofcrops.Auxinforinstancestimulatestherateofcellelongation拉长causesshootstogrowupandrootstogrowdownandinhibitsthegrowthoflateral侧面的shoots.Auxinalsocausestheplanttodevelopavascular维管的systemtofromlateralrootsandtoproduceethylene. Thepleiotropyofthefivewell-studiedplanthormonesissomewhatanalogous类似的tothatofcertainhormonesinanimal.Forexamplehormonesfromthehypothalamus下五脑inthebrainstimulatetheanterior前面的lobeofthepituitaryglandtosynthesizeandreleasemanydifferenthormonesoneofwhichstimulatesthereleaseofhormonesfromtheadrenal肾上腺的cortex皮质|.Thesehormoneshavespecificeffectsontargetorgansalloverthebody.Onehormonestimulatesthethyroid甲状腺的glandforexampleanothertheovarian子房folliclecellsandsoforth.Inotherwordsthereisahierarchy统治集团ofhormones. Suchahierarchymayalsoexistinplants.Oligosaccharinsarefragmentsofthecellwallreleasedbyenzymes酶:differentenzymesreleasedifferentoligosaccharins.Thereareindicationsthatpleiotropicplanthormonesmayactuallyfunctionbyactivatingtheenzymesthatreleasetheseothermorespecificchemicalmessengersfromthecellwall. Theauthormentionsspecificeffectsthatauxinhasonplantdevelopmentinordertoillustratethe______
MemoryClass StanFieldknowswhatagecandotoaperson’’smemoryandhe’’snottakinganychanceswithhis.Hechooseshisfoodcarefullyandgetsplentyofexercise.Healsoavoidsstresscocacolaandcigarettesmoke. What’’smoreatbreakfasteachmorningthe69-year-oldchemicalengineerswallowsaplatefulofpillsinthehopeofboostinghisbrainpower. MichelleAmoveislessthanhalfField’’sagebutnolessconcernedabouthermemory.Whileworkingroundtheclocktofinishadegreeinfilmstudiesthe33-year-oldNewYorkerhadthealarmingsensationthatshehadstoppedretaininganything.Icouldn’’tevenremembernamesshesays.IthoughtOhnoI’’mover30.It’’salldownhillfromhere.BesidesloadinguponsupplementsAmovesignedupforamemoryenhancingcourseatNewYork’’sMountSianiMedicalCenter.Andwhenshegotthereshefoundherselfsurroundedbypeoplewhowerejustasworriedasshewas. FormillionsofAmericansandespeciallyforbabyboomers生育高峰出生的人thedemandsoftheInformationAgeconflictwithasenseofdecliningphysicalpower.Whenboomerswereintheir30sand40stheylaunchedthefitnessboomsaysCynthiaGreenthepsychologistwhoteachesMountSinai’’smemoryclass.Nowwehavethemental-fitnessboomMemoryistheboomers’’newlife-crisisissue.Andofcourseamajormarketingopportunity.ThedemandforbooksandseminarshasneverbeengreatersaysJackLannomalongtimememorytrainerwhoseweeklyTVshowMindUnlimitedgoesoutto33millionhomesontheChristianNetwork.Anxiousconsumersarerushingtobuydo-it-yourselfprogramsandsupplementmakersaretryingtoselleverythingbutsawdust木屑asabrainbooster. Butbeforeyougetoutyourcheckbookafewquestionsareinorder.Doeseverydayforgetfulnesssignaldecliningbrainfunction?Ismegamemory超级记忆arealisticgoalfornormalpeople?Andifyoucouldhaveaperfectmemorywouldyoureallywantit?Untilrecentlynoonecouldaddressthoseissueswithmuchauthoritybutourknowledgeofmemoryisexploding.Newtechniquesarerevealinghowdifferentpartsofthebraininteracttopreservemeaningfulexperiences.Biologistsaretryingtounderstandtheunderlying潜在的chemicalprocessesandneuroscientists神经系统科学家arediscoveringhowagestressandotherfactorscandisruptthem.Nooneisclosetofindingthesecrettoperfectrecallbutasyou’’llseethatmaybejustaswell. WhatdoesStanFieldtakeatbreakfast?
Mr.Jacksonwantstogiveoutthisnewsassoonaspossible.
{{*HTML*}}??阅读下面的短文文章中有5处空白文章后面有6组文字请根据文章的内容选择 5组文字将其分别放回文章原有位置以恢复文章原貌 {{B}}?????????? ??????????? ????GoodWriting{{/B}}??Likefinefoodgood writingissomethingweapproachwithpleasureandenjoyfromthefirsttasteto thelast.{{U}}?46?{{/U}}Quitethecontraryjustasthecookhasto undergoanintensivetrainingmasteringtheskillsofhistradethewriter mustsitathisdeskanddevotelonghourstoachievingastyleinhiswriting whateveritspurpose--schoolworkmattersofbusinessorpurelysocial communication.{{U}}?47?{{/U}}??Therearestillsome remoteplacesintheworldwhereyoumightfindsomeonetodoyourbusinessor socialwritingforyouforafee.Thereareafewmanagerswhoamluckyenough tohavetheserviceofthatrarekindofsecretarywhocantakecareofall sortsofletterwritingwithnomorethanaquicknotetoworkfrom.{{U}} ?48?{{/U}}??Wehavetowriteschoolpapersbusiness papers’Orhomepapers.Weareconstantlycalledontoputwordstopaper.It wouldbedifficulttocountthenumberofsuchwordsmessageslettersand reportsputtothemailsordeliveredbyhandbutthedailyfiguremustbe enormous.{{U}}?49?{{/U}}Wewanttoarouseandholdtheinterestof readers.Wewantwhateverwewritetobereadfromfirstwordtolastnot thrownintosomeletters-to-be-readfileorintoawastepaperbasket.{{U}} ?50?{{/U}}A.Butformostofusifthereisanywritingtobe donewehavetodoitourselves.B.Howeverthemanagersmaysometimes causethewritersalotoftrouble.C.Anygoodwriterslikegoodcooksdo notsuddenlyappearfull-blown成熟的.D.Whatismoreeveryonewhowrites expectsoratleasthopesthathiswritingwillberead.E.Thisisthe reasonwebendoureffortstowardlearningandpractisingtheskillsof interestingeffectivewriting.F.Youmaybesurethatthegreaterthe effortthemoreeffectivethewritingandthemorerewarding.
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{{*HTML*}}??阅读下面的短文文中有15处空白每处空白给出了4个选项请根据短文的内容从4个选项中选择1个最佳答案 {{B}}??????? ??????????? ????TheAmericanFamily{{/B}}??Inthe Americanfamilythehusbandandwifeusuallyshareimportantdecisionmaking. Whenthechildrenare{{U}}?51?{{/U}}enoughtheytakepartaswell. Foreignersareoftensurprisedbythepermissiveness宽容ofAmericanparents. Theoldrulethatchildrenshouldbeseenandnotheardisrarely{{U}} ?52?{{/U}}andchildrenareoftenallowedtodo{{U}}?53 ?{{/U}}theywishwithoutstrictcontroloftheirparents.Thefatherseldom expectshischildrentolistentohim{{U}}?54?{{/U}}questionand childrenareencouragedtobe{{U}}?55?{{/U}}atanearlyage.Some peoplebelievethatAmericanparentscarrythisfreedom{{U}}?56 ?{{/U}}far.Othersthinkthatastrongfatherimagewouldnot{{U}}?57 ?{{/U}}theAmericanvaluesofequalityandindependence.BecauseAmericans emphasizetheimportanceofindependenceyoungpeopleareexpectedto{{U}} ?58?{{/U}}theirparentalfamiliesbythetimetheyhave{{U}}?59 ?{{/U}}theirlateteensorearlytwenties.Indeednottodosoisoften regardedasA.{{U}}?60?{{/U}}akindofweakdependence.? ?Thispatternofindependenceoftenresultsinserious{{U}}?61 ?{{/U}}fortheagingparentsofasmallfamily.TheaverageAmericanis expectedtolive{{U}}?62?{{/U}}theageof70.Thejob-retirementage is{{U}}?63?{{/U}}65.Thechildrenhavelefthomemarriedand{{U}} ?64?{{/U}}theirownhouseholds.Atleast20percentofallpeople over.65donothaveenoughretirementincomes.{{U}}?65?{{/U}}the majorproblemofmanyelderlycouplesisnoteconomic.Theyfeeluselessand lonelywithneitheranoccupationnoraclosefamily group.
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AdaptationofLivingThings Certainanimalsandplantsdevelopcharacteristicsthathelpthemcopewiththeirenvironmentbetterthanothersoftheirkind.Thisnaturalbiologicalprocessiscalledadaptation.Amongthesuperiorcharacteristicsdevelopedthroughadaptationarethosethatmayhelpingettingfoodorshelterinprovidingprotectionandinproducingandprotectingtheyoung.Thatresultsintheevolutionofmoreandmoreorganismsthatarebetterfittedtotheirenvironments. Eachlivingthingisadaptedtoitswayoflifeinageneralwaybuteachisadaptedespeciallytoitsowndistinctclass.Aplantforexampledependsuponitsrootstofixitselffirmlyandtoabsorbwaterandinorganicchemicals.Itdependsuponitsgreenleavesforusingthesun’’senergytomakefoodfrominorganicchemicals.Thesearegeneraladaptationscommontomostplants.Inadditiontherearespecialadaptationsthatonlycertainkindsofplantshave. Manyanimalshaveadaptationsthathelpthemescapefromtheirenemies.Someinsectsarehiddenbytheirbodycolororshapeandmanylooklikealeaforalittlebranch.Thecoatsofdeerarecoloredtomixwiththesurroundings.Manyanimalshavetheabilitytoremaincompletelystillwhenanenemyisnear. Organismshaveagreatvarietyofwaysofadapting.Theymayadaptintheirstructurefunctionandgenetics;intheirdevelopmentandproductionoftheyoung;andinotherrespects.Anorganismmaycreateitswonenvironmentasdowarm-bloodedmammalswhichhavetheabilitytoadjustbodyheatexactlytomaintaintheiridealtemperaturedespitechangingweather.Usuallyadaptationsareanadvantagebutsometimesanorganismissowelladaptedtoaparticularenvironmentthatifconditionschangeitfindsitdifficultorimpossibletoreadapttothenewconditions. Inthefirstparagraphthewordenvironmentscouldbestbereplacedby______.
Allforeigntroopsmustwithdrawfromthecountry.
{{*HTML*}}??阅读下面的短文文中有15处空白每处空白给出了4个选项请根据短文的内容从4个选项中选择1个最佳答案 {{B}}??????? ??????????? ????TheAmericanFamily{{/B}}??Inthe Americanfamilythehusbandandwifeusuallyshareimportantdecisionmaking. Whenthechildrenare{{U}}?51?{{/U}}enoughtheytakepartaswell. Foreignersareoftensurprisedbythepermissiveness宽容ofAmericanparents. Theoldrulethatchildrenshouldbeseenandnotheardisrarely{{U}} ?52?{{/U}}andchildrenareoftenallowedtodo{{U}}?53 ?{{/U}}theywishwithoutstrictcontroloftheirparents.Thefatherseldom expectshischildrentolistentohim{{U}}?54?{{/U}}questionand childrenareencouragedtobe{{U}}?55?{{/U}}atanearlyage.Some peoplebelievethatAmericanparentscarrythisfreedom{{U}}?56 ?{{/U}}far.Othersthinkthatastrongfatherimagewouldnot{{U}}?57 ?{{/U}}theAmericanvaluesofequalityandindependence.BecauseAmericans emphasizetheimportanceofindependenceyoungpeopleareexpectedto{{U}} ?58?{{/U}}theirparentalfamiliesbythetimetheyhave{{U}}?59 ?{{/U}}theirlateteensorearlytwenties.Indeednottodosoisoften regardedasA.{{U}}?60?{{/U}}akindofweakdependence.? ?Thispatternofindependenceoftenresultsinserious{{U}}?61 ?{{/U}}fortheagingparentsofasmallfamily.TheaverageAmericanis expectedtolive{{U}}?62?{{/U}}theageof70.Thejob-retirementage is{{U}}?63?{{/U}}65.Thechildrenhavelefthomemarriedand{{U}} ?64?{{/U}}theirownhouseholds.Atleast20percentofallpeople over.65donothaveenoughretirementincomes.{{U}}?65?{{/U}}the majorproblemofmanyelderlycouplesisnoteconomic.Theyfeeluselessand lonelywithneitheranoccupationnoraclosefamily group.
{{*HTML*}}??阅读下面的短文文章中有5处空白文章后面有6组文字请根据文章的内容选择 5组文字将其分别放回文章原有位置以恢复文章原貌 {{B}}?????????? ??????????? ????GoodWriting{{/B}}??Likefinefoodgood writingissomethingweapproachwithpleasureandenjoyfromthefirsttasteto thelast.{{U}}?46?{{/U}}Quitethecontraryjustasthecookhasto undergoanintensivetrainingmasteringtheskillsofhistradethewriter mustsitathisdeskanddevotelonghourstoachievingastyleinhiswriting whateveritspurpose--schoolworkmattersofbusinessorpurelysocial communication.{{U}}?47?{{/U}}??Therearestillsome remoteplacesintheworldwhereyoumightfindsomeonetodoyourbusinessor socialwritingforyouforafee.Thereareafewmanagerswhoamluckyenough tohavetheserviceofthatrarekindofsecretarywhocantakecareofall sortsofletterwritingwithnomorethanaquicknotetoworkfrom.{{U}} ?48?{{/U}}??Wehavetowriteschoolpapersbusiness papers’Orhomepapers.Weareconstantlycalledontoputwordstopaper.It wouldbedifficulttocountthenumberofsuchwordsmessageslettersand reportsputtothemailsordeliveredbyhandbutthedailyfiguremustbe enormous.{{U}}?49?{{/U}}Wewanttoarouseandholdtheinterestof readers.Wewantwhateverwewritetobereadfromfirstwordtolastnot thrownintosomeletters-to-be-readfileorintoawastepaperbasket.{{U}} ?50?{{/U}}A.Butformostofusifthereisanywritingtobe donewehavetodoitourselves.B.Howeverthemanagersmaysometimes causethewritersalotoftrouble.C.Anygoodwriterslikegoodcooksdo notsuddenlyappearfull-blown成熟的.D.Whatismoreeveryonewhowrites expectsoratleasthopesthathiswritingwillberead.E.Thisisthe reasonwebendoureffortstowardlearningandpractisingtheskillsof interestingeffectivewriting.F.Youmaybesurethatthegreaterthe effortthemoreeffectivethewritingandthemorerewarding.{{*HTML*}}
TheNewYeariscoming.Wedecidedtogiveourroomathoroughclean.
{{*HTML*}}??阅读下面的短文文中有15处空白每处空白给出了4个选项请根据短文的内容从4个选项中选择1个最佳答案 {{B}}??????? ??????????? ????TheAmericanFamily{{/B}}??Inthe Americanfamilythehusbandandwifeusuallyshareimportantdecisionmaking. Whenthechildrenare{{U}}?51?{{/U}}enoughtheytakepartaswell. Foreignersareoftensurprisedbythepermissiveness宽容ofAmericanparents. Theoldrulethatchildrenshouldbeseenandnotheardisrarely{{U}} ?52?{{/U}}andchildrenareoftenallowedtodo{{U}}?53 ?{{/U}}theywishwithoutstrictcontroloftheirparents.Thefatherseldom expectshischildrentolistentohim{{U}}?54?{{/U}}questionand childrenareencouragedtobe{{U}}?55?{{/U}}atanearlyage.Some peoplebelievethatAmericanparentscarrythisfreedom{{U}}?56 ?{{/U}}far.Othersthinkthatastrongfatherimagewouldnot{{U}}?57 ?{{/U}}theAmericanvaluesofequalityandindependence.BecauseAmericans emphasizetheimportanceofindependenceyoungpeopleareexpectedto{{U}} ?58?{{/U}}theirparentalfamiliesbythetimetheyhave{{U}}?59 ?{{/U}}theirlateteensorearlytwenties.Indeednottodosoisoften regardedasA.{{U}}?60?{{/U}}akindofweakdependence.? ?Thispatternofindependenceoftenresultsinserious{{U}}?61 ?{{/U}}fortheagingparentsofasmallfamily.TheaverageAmericanis expectedtolive{{U}}?62?{{/U}}theageof70.Thejob-retirementage is{{U}}?63?{{/U}}65.Thechildrenhavelefthomemarriedand{{U}} ?64?{{/U}}theirownhouseholds.Atleast20percentofallpeople over.65donothaveenoughretirementincomes.{{U}}?65?{{/U}}the majorproblemofmanyelderlycouplesisnoteconomic.Theyfeeluselessand lonelywithneitheranoccupationnoraclosefamily group.
{{*HTML*}}??阅读下面的短文文中有15处空白每处空白给出了4个选项请根据短文的内容从4个选项中选择1个最佳答案 {{B}}??????? ??????????? ????TheAmericanFamily{{/B}}??Inthe Americanfamilythehusbandandwifeusuallyshareimportantdecisionmaking. Whenthechildrenare{{U}}?51?{{/U}}enoughtheytakepartaswell. Foreignersareoftensurprisedbythepermissiveness宽容ofAmericanparents. Theoldrulethatchildrenshouldbeseenandnotheardisrarely{{U}} ?52?{{/U}}andchildrenareoftenallowedtodo{{U}}?53 ?{{/U}}theywishwithoutstrictcontroloftheirparents.Thefatherseldom expectshischildrentolistentohim{{U}}?54?{{/U}}questionand childrenareencouragedtobe{{U}}?55?{{/U}}atanearlyage.Some peoplebelievethatAmericanparentscarrythisfreedom{{U}}?56 ?{{/U}}far.Othersthinkthatastrongfatherimagewouldnot{{U}}?57 ?{{/U}}theAmericanvaluesofequalityandindependence.BecauseAmericans emphasizetheimportanceofindependenceyoungpeopleareexpectedto{{U}} ?58?{{/U}}theirparentalfamiliesbythetimetheyhave{{U}}?59 ?{{/U}}theirlateteensorearlytwenties.Indeednottodosoisoften regardedasA.{{U}}?60?{{/U}}akindofweakdependence.? ?Thispatternofindependenceoftenresultsinserious{{U}}?61 ?{{/U}}fortheagingparentsofasmallfamily.TheaverageAmericanis expectedtolive{{U}}?62?{{/U}}theageof70.Thejob-retirementage is{{U}}?63?{{/U}}65.Thechildrenhavelefthomemarriedand{{U}} ?64?{{/U}}theirownhouseholds.Atleast20percentofallpeople over.65donothaveenoughretirementincomes.{{U}}?65?{{/U}}the majorproblemofmanyelderlycouplesisnoteconomic.Theyfeeluselessand lonelywithneitheranoccupationnoraclosefamily group.
Nurses Thephysiciansinahospitalformthecoreofthemedicalstaff.Buttheycouldnotprovideeffectivemedicalcaretotheirpatientswithoutthehelpofnumerousothermedicalworkers.Fromtheangleofthepatientsthenursingstaffisparticularlyimportant.Nursesareusuallyinclosecontactwithpatientsaslongastheyareinthehospital. Anursedoesnotstudyforasmanyyearsasadoctor.Howevereachmustbeequallytrained.Caringforsickpersonsrequiresagreatdealofpatienceandconcern.Mostnursesworklongdaysandtheyoftenmustworkatoddhoursorduringthenight. Thenursingstaffinahospitalisusuallyquitelargeandvarious.Nursingservicesafterallmustbeprovidedona24-hourbasis.Thereareprofessional专业的nursespracticalnursesnursesaidsandorderlies勤杂工.Thegeneraltermnursereferstoapersontrainedtoofferbedsidecaretosickpersons. Underthesupervision管理oftheheadnursethenursingstaffinahospitalwardmustattendtopatients’’needs.Thisresponsibilitycontinuesaroundtheclockandsonursesmustworkinshifts.Ashiftisaperiodofdutyusuallyeighthoursinlength.Thenursesonthewardrotate轮换theirshifts.Sometaketurnsworkingnightduty;othersworkoddshifts.Allofthemworkoutofacentralareaonthewardcalledthenursesstation. Anursemustalwaysbeonherguard.Shecanneveraffordtobecareless.Thisistrueinallnursingsituationsbutitisespeciallytrueintheintensivecareunit.Patientsunderintensivecarearecriticallyillandtheymustbemonitoredatalltimes.Thenurseswhodointensivecaredutyhaveoneofthemostdemandingjobsinthehospital. Nursesoftenearnasmuchmoneyasphysiciansdobecausetheytendtoworklongdaysandatoddhours.
{{*HTML*}}??阅读下面的短文文章中有5处空白文章后面有6组文字请根据文章的内容选择 5组文字将其分别放回文章原有位置以恢复文章原貌 {{B}}?????????? ??????????? ????GoodWriting{{/B}}??Likefinefoodgood writingissomethingweapproachwithpleasureandenjoyfromthefirsttasteto thelast.{{U}}?46?{{/U}}Quitethecontraryjustasthecookhasto undergoanintensivetrainingmasteringtheskillsofhistradethewriter mustsitathisdeskanddevotelonghourstoachievingastyleinhiswriting whateveritspurpose--schoolworkmattersofbusinessorpurelysocial communication.{{U}}?47?{{/U}}??Therearestillsome remoteplacesintheworldwhereyoumightfindsomeonetodoyourbusinessor socialwritingforyouforafee.Thereareafewmanagerswhoamluckyenough tohavetheserviceofthatrarekindofsecretarywhocantakecareofall sortsofletterwritingwithnomorethanaquicknotetoworkfrom.{{U}} ?48?{{/U}}??Wehavetowriteschoolpapersbusiness papers’Orhomepapers.Weareconstantlycalledontoputwordstopaper.It wouldbedifficulttocountthenumberofsuchwordsmessageslettersand reportsputtothemailsordeliveredbyhandbutthedailyfiguremustbe enormous.{{U}}?49?{{/U}}Wewanttoarouseandholdtheinterestof readers.Wewantwhateverwewritetobereadfromfirstwordtolastnot thrownintosomeletters-to-be-readfileorintoawastepaperbasket.{{U}} ?50?{{/U}}A.Butformostofusifthereisanywritingtobe donewehavetodoitourselves.B.Howeverthemanagersmaysometimes causethewritersalotoftrouble.C.Anygoodwriterslikegoodcooksdo notsuddenlyappearfull-blown成熟的.D.Whatismoreeveryonewhowrites expectsoratleasthopesthathiswritingwillberead.E.Thisisthe reasonwebendoureffortstowardlearningandpractisingtheskillsof interestingeffectivewriting.F.Youmaybesurethatthegreaterthe effortthemoreeffectivethewritingandthemorerewarding.
Ibegyouonceagainneverdesertmeinmymisfortunes!
{{*HTML*}}??阅读下面的短文文中有15处空白每处空白给出了4个选项请根据短文的内容从4个选项中选择1个最佳答案 {{B}}??????? ??????????? ????TheAmericanFamily{{/B}}??Inthe Americanfamilythehusbandandwifeusuallyshareimportantdecisionmaking. Whenthechildrenare{{U}}?51?{{/U}}enoughtheytakepartaswell. Foreignersareoftensurprisedbythepermissiveness宽容ofAmericanparents. Theoldrulethatchildrenshouldbeseenandnotheardisrarely{{U}} ?52?{{/U}}andchildrenareoftenallowedtodo{{U}}?53 ?{{/U}}theywishwithoutstrictcontroloftheirparents.Thefatherseldom expectshischildrentolistentohim{{U}}?54?{{/U}}questionand childrenareencouragedtobe{{U}}?55?{{/U}}atanearlyage.Some peoplebelievethatAmericanparentscarrythisfreedom{{U}}?56 ?{{/U}}far.Othersthinkthatastrongfatherimagewouldnot{{U}}?57 ?{{/U}}theAmericanvaluesofequalityandindependence.BecauseAmericans emphasizetheimportanceofindependenceyoungpeopleareexpectedto{{U}} ?58?{{/U}}theirparentalfamiliesbythetimetheyhave{{U}}?59 ?{{/U}}theirlateteensorearlytwenties.Indeednottodosoisoften regardedasA.{{U}}?60?{{/U}}akindofweakdependence.? ?Thispatternofindependenceoftenresultsinserious{{U}}?61 ?{{/U}}fortheagingparentsofasmallfamily.TheaverageAmericanis expectedtolive{{U}}?62?{{/U}}theageof70.Thejob-retirementage is{{U}}?63?{{/U}}65.Thechildrenhavelefthomemarriedand{{U}} ?64?{{/U}}theirownhouseholds.Atleast20percentofallpeople over.65donothaveenoughretirementincomes.{{U}}?65?{{/U}}the majorproblemofmanyelderlycouplesisnoteconomic.Theyfeeluselessand lonelywithneitheranoccupationnoraclosefamily group.
Whenhegotoutofthemanagersofficefromhisfacialexpressionweknewthathisproposalmusthavebeenturneddown.
Nurses Thephysiciansinahospitalformthecoreofthemedicalstaff.Buttheycouldnotprovideeffectivemedicalcaretotheirpatientswithoutthehelpofnumerousothermedicalworkers.Fromtheangleofthepatientsthenursingstaffisparticularlyimportant.Nursesareusuallyinclosecontactwithpatientsaslongastheyareinthehospital. Anursedoesnotstudyforasmanyyearsasadoctor.Howevereachmustbeequallytrained.Caringforsickpersonsrequiresagreatdealofpatienceandconcern.Mostnursesworklongdaysandtheyoftenmustworkatoddhoursorduringthenight. Thenursingstaffinahospitalisusuallyquitelargeandvarious.Nursingservicesafterallmustbeprovidedona24-hourbasis.Thereareprofessional专业的nursespracticalnursesnursesaidsandorderlies勤杂工.Thegeneraltermnursereferstoapersontrainedtoofferbedsidecaretosickpersons. Underthesupervision管理oftheheadnursethenursingstaffinahospitalwardmustattendtopatients’’needs.Thisresponsibilitycontinuesaroundtheclockandsonursesmustworkinshifts.Ashiftisaperiodofdutyusuallyeighthoursinlength.Thenursesonthewardrotate轮换theirshifts.Sometaketurnsworkingnightduty;othersworkoddshifts.Allofthemworkoutofacentralareaonthewardcalledthenursesstation. Anursemustalwaysbeonherguard.Shecanneveraffordtobecareless.Thisistrueinallnursingsituationsbutitisespeciallytrueintheintensivecareunit.Patientsunderintensivecarearecriticallyillandtheymustbemonitoredatalltimes.Thenurseswhodointensivecaredutyhaveoneofthemostdemandingjobsinthehospital. Thenursesinahospitalusuallyspendmoretimewiththepatientsthanthephysicians.
AHierarchyofHormones Allofthecellsinaparticularplantstartoutwiththesamecomplementofgenes.Howthencanthesecellsdifferentiateandfromstructuresasdifferentasrootsstemsleavesandfruits?Theansweristhatonlyasmallsubsetofthegenesinaparticularkindofcellareexpressedorturnedonatagiventime.Thisisaccomplishedbyacomplexsystemofchemicalmessengersthatinplantsincludehormonesandotherregulatorymolecules.Fivemajorhormoneshavebeenidentified;auxin生长素abscisicacid脱落酸cytokinin细胞激动素hetylene乙烯andgibberellin赤霉素.Studiesofplantshavenowidentifiedanewclassofregulatorymoleculescalledoligosaccharins. Unliketheoligosaccharinsthefivewell-knownplanthormonesarepleiotropic多向性的ratherthanspecificthatiseachhasmorethanoneeffectonthegrowthanddevelopmentofplants.Thefivehavesomanysimultaneouseffectsthattheyarenotveryusefulinartificiallycontrollingthegrowthofcrops.Auxinforinstancestimulatestherateofcellelongation拉长causesshootstogrowupandrootstogrowdownandinhibitsthegrowthoflateral侧面的shoots.Auxinalsocausestheplanttodevelopavascular维管的systemtofromlateralrootsandtoproduceethylene. Thepleiotropyofthefivewell-studiedplanthormonesissomewhatanalogous类似的tothatofcertainhormonesinanimal.Forexamplehormonesfromthehypothalamus下五脑inthebrainstimulatetheanterior前面的lobeofthepituitaryglandtosynthesizeandreleasemanydifferenthormonesoneofwhichstimulatesthereleaseofhormonesfromtheadrenal肾上腺的cortex皮质|.Thesehormoneshavespecificeffectsontargetorgansalloverthebody.Onehormonestimulatesthethyroid甲状腺的glandforexampleanothertheovarian子房folliclecellsandsoforth.Inotherwordsthereisahierarchy统治集团ofhormones. Suchahierarchymayalsoexistinplants.Oligosaccharinsarefragmentsofthecellwallreleasedbyenzymes酶:differentenzymesreleasedifferentoligosaccharins.Thereareindicationsthatpleiotropicplanthormonesmayactuallyfunctionbyactivatingtheenzymesthatreleasetheseothermorespecificchemicalmessengersfromthecellwall. Accordingtothepassagethefivewell-knownplanthormonesarenotusefulincontrollingthegrowthofcropsbecause______.
AdaptationofLivingThings Certainanimalsandplantsdevelopcharacteristicsthathelpthemcopewiththeirenvironmentbetterthanothersoftheirkind.Thisnaturalbiologicalprocessiscalledadaptation.Amongthesuperiorcharacteristicsdevelopedthroughadaptationarethosethatmayhelpingettingfoodorshelterinprovidingprotectionandinproducingandprotectingtheyoung.Thatresultsintheevolutionofmoreandmoreorganismsthatarebetterfittedtotheirenvironments. Eachlivingthingisadaptedtoitswayoflifeinageneralwaybuteachisadaptedespeciallytoitsowndistinctclass.Aplantforexampledependsuponitsrootstofixitselffirmlyandtoabsorbwaterandinorganicchemicals.Itdependsuponitsgreenleavesforusingthesun’’senergytomakefoodfrominorganicchemicals.Thesearegeneraladaptationscommontomostplants.Inadditiontherearespecialadaptationsthatonlycertainkindsofplantshave. Manyanimalshaveadaptationsthathelpthemescapefromtheirenemies.Someinsectsarehiddenbytheirbodycolororshapeandmanylooklikealeaforalittlebranch.Thecoatsofdeerarecoloredtomixwiththesurroundings.Manyanimalshavetheabilitytoremaincompletelystillwhenanenemyisnear. Organismshaveagreatvarietyofwaysofadapting.Theymayadaptintheirstructurefunctionandgenetics;intheirdevelopmentandproductionoftheyoung;andinotherrespects.Anorganismmaycreateitswonenvironmentasdowarm-bloodedmammalswhichhavetheabilitytoadjustbodyheatexactlytomaintaintheiridealtemperaturedespitechangingweather.Usuallyadaptationsareanadvantagebutsometimesanorganismissowelladaptedtoaparticularenvironmentthatifconditionschangeitfindsitdifficultorimpossibletoreadapttothenewconditions. Whichofthefollowingisnotdirectlymentioned?
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