精品文档_卫生类-相同项单选集1、UsingHIVVirustoCureCancerScientistsareplanningtousehumanimmunodeficiency(免疫缺陷)virus(HIV),oneofmankindsmostfearedviruses,asacarrierofgeneswhichcanfightcancerandarangeofdiseasesthatcannotbecured.TheexpertssayHIVhasanalmostperfectabilitytoavoidthebodysimmune(免疫的)defenses,makingitidealforcarryingreplacementgenesintopatientsbodies,accordingtotheObserver.FDAhasapprovedtheplanofusingHIVtocurecancerinhumans.A.RightB.WrongC.NotmentionedA.AteamattheCalifornia-basedSalkInstitute,oneoftheworldsleadingresearchcentersonbiologicalsciences,hascreatedaspecialnewbreedofHIVandhasstartednegotiationswiththeUSFoodandDrugAdministration(FDtobeginclinicalgenetherapy(治疗)trialsthisyear.ThefirsttrialsareexpectedtoinvolvepatientssufferingfromcancersthatcannotbecuredbysurgeryalthoughprojectleaderProfessorInderVermasaidtheHIVtechniquewouldhave”farwiderapplications”.B.Theplanremainsverylikelytocausecontroversysinceitinvolvesmakinguseofaviruswhichhascausedmorethan22milliondeathsaroundtheworldinthepasttwodecades.VermasaidthattheideaofusingHIVforabeneficialpurposewas”shocking”butthefiercenatureofHIVhaddisappearedbyhavingallsixofthepotentiallydeadlygenesremoved.C.Illnessessuchasvariouscancersarecausedwhenageneinapatientsbodyfailstoworkproperly.Inthepasttwoyears,breakthroughsingenetics(遗传学)haveledgenetherapyscientiststotryandreplacethegenesthatdonotfunctionnormally.D.Unfortunately,thebodysimmunedefenseshavebeenknowntoattackthemodifiedgenesandmakethemlosetheireffectsbeforetheycanstarttheirtaskandprogressinthefieldhasbeenheldupbythelackofasuitablecarrier.E.TheHIVvirushastheabilitytoescapefrom,andthendestroy,theimmunedefenseceilsdesignedtoprotectourbodiesandthismakesitattractivetoscientistsasawayofsecretlyconveyingreplacementgenesintopatientsbodies.2、UsingHIVVirustoCureCancerScientistsareplanningtousehumanimmunodeficiency(免疫缺陷)virus(HIV),oneofmankindsmostfearedviruses,asacarrierofgeneswhichcanfightcancerandarangeofdiseasesthatcannotbecured.TheexpertssayHIVhasanalmostperfectabilitytoavoidthebodysimmune(免疫的)defenses,makingitidealforcarryingreplacementgenesintopatientsbodies,accordingtotheObserver.TheideaofusingHIVforabeneficialpurposehasbeenwidelyaccepted.A.RightB.WrongC.NotmentionedA.AteamattheCalifornia-basedSalkInstitute,oneoftheworldsleadingresearchcentersonbiologicalsciences,hascreatedaspecialnewbreedofHIVandhasstartednegotiationswiththeUSFoodandDrugAdministration(FDtobeginclinicalgenetherapy(治疗)trialsthisyear.ThefirsttrialsareexpectedtoinvolvepatientssufferingfromcancersthatcannotbecuredbysurgeryalthoughprojectleaderProfessorInderVermasaidtheHIVtechniquewouldhave”farwiderapplications”.B.Theplanremainsverylikelytocausecontroversysinceitinvolvesmakinguseofaviruswhichhascausedmorethan22milliondeathsaroundtheworldinthepasttwodecades.VermasaidthattheideaofusingHIVforabeneficialpurposewas”shocking”butthefiercenatureofHIVhaddisappearedbyhavingallsixofthepotentiallydeadlygenesremoved.C.Illnessessuchasvariouscancersarecausedwhenageneinapatientsbodyfailstoworkproperly.Inthepasttwoyears,breakthroughsingenetics(遗传学)haveledgenetherapyscientiststotryandreplacethegenesthatdonotfunctionnormally.D.Unfortunately,thebodysimmunedefenseshavebeenknowntoattackthemodifiedgenesandmakethemlosetheireffectsbeforetheycanstarttheirtaskandprogressinthefieldhasbeenheldupbythelackofasuitablecarrier.E.TheHIVvirushastheabilitytoescapefrom,andthendestroy,theimmunedefenseceilsdesignedtoprotectourbodiesandthismakesitattractivetoscientistsasawayofsecretlyconveyingreplacementgenesintopatientsbodies.3、UsingHIVVirustoCureCancerScientistsareplanningtousehumanimmunodeficiency(免疫缺陷)virus(HIV),oneofmankindsmostfearedviruses,asacarrierofgeneswhichcanfightcancerandarangeofdiseasesthatcannotbecured.TheexpertssayHIVhasanalmostperfectabilitytoavoidthebodysimmune(免疫的)defenses,makingitidealforcarryingreplacementgenesintopatientsbodies,accordingtotheObserver.HIVcanbesafelyusedtocurecanceronlyilthedeadlygeneshavebeenremoved.A.RightB.WrongC.NotmentionedA.AteamattheCalifornia-basedSalkInstitute,oneoftheworldsleadingresearchcentersonbiologicalsciences,hascreatedaspecialnewbreedofHIVandhasstartednegotiationswiththeUSFoodandDrugAdministration(FDtobeginclinicalgenetherapy(治疗)trialsthisyear.ThefirsttrialsareexpectedtoinvolvepatientssufferingfromcancersthatcannotbecuredbysurgeryalthoughprojectleaderProfessorInderVermasaidtheHIVtechniquewouldhave”farwiderapplications”.B.Theplanremainsverylikelytocausecontroversysinceitinvolvesmakinguseofaviruswhichhascausedmorethan22milliondeathsaroundtheworldinthepasttwodecades.VermasaidthattheideaofusingHIVforabeneficialpurposewas”shocking”butthefiercenatureofHIVhaddisappearedbyhavingallsixofthepotentiallydeadlygenesremoved.C.Illnessessuchasvariouscancersarecausedwhenageneinapatientsbodyfailstoworkproperly.Inth