新PP1-74 感謝~!

kbkgqoo

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   
這道題我是因為五個選項中 覺得C比較有關才選這個~~!  想請問要他後來結論是說鎮定劑裡面可能有些物質始犀牛

                                    

              不孕~~不就是要評估這句話嗎? C選項裡面~~有多頻繁注射鎮定劑在犀牛身上不是為了attaching radio
collars?

                                    

                                            

              那可以把他想成~~即使注射很多次是因為他因~~但是還是因為鎮定劑裡面有一些藥物阿~~

                                            

                                                    

             不孕跟注射多寡會很有關西嗎??    不管注射幾次~~裡面都有那個不孕的藥物存在不是嗎??
請指點迷津~~感謝阿~!!

                                            

                                            

            

[此贴子已经被作者于2009-5-19 23:57:58编辑过]