The passage summarizes harmful effects of animal experiment. However, as animal experiment is indispensable in a number of areas

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问题 The passage summarizes harmful effects of animal experiment. However, as animal experiment is indispensable in a number of areas, it might not be stopped or replaced by other alternatives.
Indeed, in some cases, scientific advances are making animal tests

选项

答案more valuable

解析在最后一部分的第一段，叙述动物实验为什么对于基础科学的发展那么重要。

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大学英语四级

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The passage summarizes harmful effects of animal experiment. However, as animal experiment is indispensable in a number of areas

大学英语四级

Thenowextinctpassengerpigeonhasthedubioushonorofbeingthelastspeciesanyoneeverexpectedtodisappear.Atonepoint

A、Theirscoreswereleastaffectedbymusicwithspeech.B、Itwasthepoorestwhentherewasbackgroundspeech.C、Theirscoresw

A、Itprovidestoomanyentertainmentprograms.B、Itisnotaseducationalasreadingbooks.C、Itmakesussitinitsfrontpassi

ManyEnglishmenjoininthemovementof"do-it-yourself,"because______.Whichofthefollowingpeoplecanrepairanddecorate

A、Toescapewildanimals.B、Togetthefruitsupinthetrees.C、Tokeepthemselveswarm.D、Tokeepthemselvesdry.AWhydidsom

NomatterhowlargeornotabletheU.S.travelindustryisormaybecome,itwillalwaysbemembersofabroaderworldsociety.

Hestudiedhardinhisyouth,_________________(这也是他后半生取得巨大成功的原因).

A、Tothedentist.B、Tothevet.C、Tothebusstop.D、Tothelibrary.AM:Ineedtogetmytoothlookedat.It’sbeenhurtingme

A、Shedoesn’thavetimetomove.B、Shewouldhavedifficultyinfindinganotherapartment.C、She’spaidherrentforthesummer

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考来烯胺的降脂特点是（ ）。

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文艺复兴时期人文主义教育思想家有意大利的__________、法国的蒙田和__________等。

设函数f(x)在x=2的某邻域内可导，且f’(x)=ef(x)，f(2)=1，则f’’’(2)=__________．

Twenty-sevenyearsago,EgyptreviseditssecularconstitutiontoenshrineMuslimshariaas"theprincipalsourceoflegislation

A、Changingforanewcomputer.B、Changingforanewmodem.C、Gettingthecomputerrepaired.D、Callingforarepairpersonforth

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文艺复兴时期人文主义教育思想家有意大利的、法国的蒙田和等。