我記得有另外一題是跟這題相同題幹但是問的 方式不同
這題的推論應該是這樣
use tranquilizer darts -> Low fertility
Low ertility 是確定已發生的事實數據 應此可能是另有他因
也就是說不一定是 tranquilizer darts造成 low fertility
use tranquilizer and then Recollar -> Low fertility
(很明顯的題幹結論漏掉 recollar這動作 一定有漏洞! )
會不會是 recollar這個動作造成 female 身心受創而不孕?!
所以答案C 的意思是 要證明是 tranquilizer 而不是recollar 造成 Low F
比如說
100隻 注射tranquilizer , 一部分50隻 recollar, 是不是還是100隻不孕
如果是50隻 代表是 RECOLLAR 造成
※ 引述《pilichat (人生需要不斷冒險)》之銘言：
: 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
: 刪到最後剩下C
: C也是正確答案
: 但看不懂因為其他原因而注射麻醉的頻率,和題幹有什麼連結...
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◆ From: 114.32.106.3
※ 編輯: webelieve 來自: 114.32.106.3 (10/08 21:01)
※ 編輯: webelieve 來自: 114.32.106.3 (10/08 21:02)
※ 編輯: webelieve 來自: 114.32.106.3 (10/08 21:05)