考试宝典职称英语考试卫生类阅读判断练习题二.doc
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考试宝典职称英语考试卫生类阅读判断练习题二.doc
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职称英语考试宝典系列软件
【考试宝典】2014年职称英语考试卫生类阅读判断练习题
(二)
UsingHIVVirustoCureCancer
Scientistsareplanningtousehumanimmunodeficiency(免疫缺陷)virus(HIV),oneofmankind'smostfearedviruses,asacarrierofgeneswhichcanfightcancerandarangeofdiseasesthatcannotbecured.TheexpelssayHIVhasanalmostperfectabilitytoavoidthebody'simmune(免疫的)defenses,makingitidealforcarryingreplacementgenesintopatients'bodies,accordingtotheObservef
AteamattheCalifornia-basedSalkInstitute,oneoftheworld'sleadingresearchcentersonbiologicalsciences,hascreatedaspecialnewbreedofHIVandhasstartednegotiationswiththeU.S.FoodandDrugAdministration(FDA)tobeginclinicalgenetherapy(治疗)trialsthisyear.ThefirsttrialsareexpectedtoinvolvepatientssufferingfromcancersthatcannotbecuredbysurgeryalthoughprojectleaderProfessorInderVermasaidtheHIVtechniquewouldhave"farwiderapplications".
Theplanremainsverylikelytocausecontroversysinceitinvolvesmakinguseofaviruswhichhascausedmorethan22milliondeathsaroundtheworldinthepasttwodecades.VermasaidthattheideaofusingHIVforabeneficialpurposewas"shocking''butthefiercenatureofHIVhaddisappearedbyhavingallsixofthepotentiallydeadlygenesremoved.
Illnessessuchasvariouscancersarecausedwhenageneinapatient'sbodyfailstoworkproperly.Inthepasttwoyears,breakthroughsingenetics(遗传学)haveledgenetherapyscientiststotryandreplacethegenesthatdonotfunctionnormally.
Unfortunately.thebody'simmunedefenseshavebeenknowntoattackthemodifiedgenesandmakethemlosetheireffectsbeforetheycanstarttheirtaskandprogressinthefieldhasbeenheldupbythelackofasuitablecarrier.
TheHIVvirushastheabilitytoescapefrOm。
andthendestroy,theImmunedefense
cellsdesignedtoprotectourbodiesandthismakesitattractivetoscientistsasawayof
secretlyconveyingreplacementgenesintopatients'bodies.
1.FDAhasapprovedtheplanofusingHIVtocurecancerinhumans
A.Right
B.Wrong
C.Notmentioned
2.TheideaofusingHIVforabeneficialpurposehasbeenwidelyaccepted
A.Right
B.Wrong
C.Notmentioned
3.HIVcanbesafelyusedtocurecanceronlyifthedeadlygeneshavebeenremoved
A.Right
B.Wrong
C.Notmentioned
4.TheHIVvirusisanexcellentwarriortofightthebody'simmunecells
A.Right
B.Wrong
C.Notmentioned
5.Othercountriesarealsoexpectedtobeginclinicalgenetherapytrialssoon
A.Right
B.Wrong
C.Notmentioned
6.ItisthelackofmoneythathashelduDtheprogressinusingreplacementgenestocurecancen
A.Right
B.Wrong
C.Notmentioned
7.TheHIVvirushascausedmoredeathsindevelopedcountries
A.Right
B.Wrong
C.Notmentioned
答案:
1.B 2.B 3.A 4.A 5.C 6.B 7.C
Beforethewidespreaduseofcomputers,managerscouldnotmakefulluseoflargeamountsofvaluableinformationaboutacompany'sactivities.Theinformationeitherreachedmanagerstoolateorwastooexpensivetobeused.Today,managersarefacingawiderangeofdataprocessingandinformationinstruments.Inplaceofafewfinancialcontrols,managerscandrawoncomputer-basedinformationsystemstocontrolactivitiesineveryareaoftheircompany.Onanykindsofperformancemeasures,theinformationprovidedbythesesystemshelpsmanagerscomparestandardswithactualresults,findoutproblems,andtakecorrectiveactionbeforeitistoolatetomakechanges.
Theintroductionofcomputerizedinformationsystemshassharplychangedmanagementcontrolinmanycompanies.Evenaneighborhoodshopkeepermaynowusecomputerstocontrolsales,billing,andotheractivities.Inlargecompanies,electronicdataprocessingsystemsmonitorentireprojectsandsetsofoperations.
Now,thereareabout24millionmicrocomputersinuseintheUnitedStates——oneforevery10citizens.Itisestimatedthatby1996,61percentofAmericanmanagerswillbeusingsomesortofelectronicworkstation.Inorderformanagerstobesurethatthecomputer-basedinformationtheyarereceivingisaccurate,theyneedtounderstandhowcomputerswork.However,inmostcasestheydonotneedtolearnhowtoprogramcomputers.Rather,managersshouldunderstandhowcomputerizedinformationsystemswork;howtheyaredeveloped;theirlimitationsandcosts;andthemannerinwhichinformationsystemsmaybeused.Suchanunderstandingisnotdifficulttoachieve.
Oneresearchfoundthatbusinessfirmsweremoresuccessfulinteachingbasicinformationaboutcomputerstobusinessgraduatesthantheywereinteachingbusinesssubjectstocomputersciencegraduates.
16Today,conventionalfinancialcontrolsarestillexercisedinsomeminorareassuchasbillingandvocationaltraining.
ARightBWrongCNotmention
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