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标题: GWD-13-22 Gwd 逻辑讨论汇总里没这道题，所以发出来问问：） [打印本页]
作者: zhchch    时间: 2005-12-2 00:30
标题: GWD-13-22 Gwd 逻辑讨论汇总里没这道题，所以发出来问问：）

Gwd 逻辑讨论汇总里没这道题，所以发出来问问：）


In a certain wildlife park, park rangers are able to track the movements of many rhinoceroses because those animals wear radio collars.  When, as often happens, a collar slips off, it is put back on.  utting a collar on a rhinoceros involves immobilizing the animal by shooting it with a tranquilizer dart.  Female rhinoceroses that have been frequently recollared have significantly lower fertility rates than uncollared females.  robably, therefore, some substance in the tranquilizer inhibits fertility.



Which of the following is an assumption on which the argument depends?




  • The dose of tranquilizer delivered by a tranquilizer dart is large enough to give the rangers putting collars on rhinoceroses a generous margin of safety.

  • The fertility rate of uncollared female rhinoceroses in the park has been increasing in the past few decades.

  • Any stress that female rhinoceroses may suffer as a result of being immobilized and handled has little or no negative effect on their fertility.

  • The male rhinoceroses in the wildlife park do net lose their collars as often as the park’s female rhinoceroses do.

  • The tranquilizer used in immobilizing rhinoceroses is the same as the tranquilizer used in working with other large mammals.

    • 答案是C，请问NN，怎么理解啊？

    作者: maggie111    时间: 2005-12-2 01:42

    A.Talking about the safty matters(is dose of the tranquilizer safe enough?)which permitted park ranger tranquilized the rhinoceroses ------>Totally irrelevant


    B.Talking about the inviroment, while points out fertility rate of uncollard species is high ---->Actrually the question raised here is "whether this tranquilizer makes rhinoceroses a lower fertility." So,talking about fertility rate of other species is no meaning.


    C.


    D.Campare the chance of losing collar with male rhinoceroses---> If there is a compare,the compare is not between the male and female rhinoceroses,better between the uncollared  and collared female rhinoceroses. So also talking nonsense for digging out the question "whether this tranquilizer makes rhinoceroses a lower fertility."


    E.Yes maybe they can use that on large mammals,but just don't know whether those mammals suffer from a lower fertility?

    作者: steveyangxt    时间: 2005-12-14 21:12

    证明生育率低不是由非 麻醉剂成分导致就行了， 比如c中说的， 不是由惊吓导致的 取非

    作者: chamcham    时间: 2007-6-27 15:24
    c
    作者: zhengjingzhe    时间: 2009-7-18 15:07
    up



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