[語文] 新PP1 CR #74
74. (29534-!-item-!-188;#058&004138)
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.
Putting 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. Probably, therefore, some
substance in the tranquilizer inhibits fertility.
In evaluating the argument, it would be most useful to determine which of the
following?
A. Whether there are more collared female rhinoceroses than uncollared female
rhinoceroses in the park
B. How the tranquilizer that is used for immobilizing rhinoceroses differs,
if at all, from tranquilizers used in working with other large mammals
C. How often park rangers need to use tranquilizer darts to immobilize
rhinoceroses for reasons other than attaching radio collars
D. Whether male rhinoceroses in the wildlife park lose their collars any more
often than the park’s female rhinoceroses do
E. Whether radio collars are the only practical means that park rangers have
for tracking the movements of rhinoceroses in the park
Ans:(C)
請問這題的思路應該如何解釋呢??謝謝~~
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◆ From: 123.193.19.10
※ 編輯: hatepig 來自: 123.193.19.10 (03/18 01:12)
※ 編輯: hatepig 來自: 123.193.19.10 (03/18 01:12)
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