马上考了，求助一道prep逻辑

maxminzt

The proposal to hire ten new police officers in Middletown is quite foolish.  There is sufficient funding to pay the salaries of the new officers, but not the salaries of additional court and prison employees to process the increased caseload of arrests and convictions that new officers usually generate.
Which of the following, if true, will most seriously weaken the conclusion drawn above?


(D) In most United States cities, not all arrests result in convictions, and not all convictions result in prison terms.
(E) Middletown's ratio of police officers to citizens has reached a level at which an increase in the number of officers will have a deterrent effect on crime.

答案是e，但我觉得d和e不都说同意意思嘛？  都暗示警察多了但犯罪率不一定高

shihoa

题干的意思是：那个新招收10个警察的建议是愚蠢的。。。。

E的意思是：M镇里的警察和居民的比例已经达到了一个程度。这个程度就是警察的增加会对犯罪有遏制的作用。（即招收新的警察是有效的）

两者是明显Weaken关系。答案就是E。
D是无关选项。

elmolung

我之前也错过
我现在看啊。D的不足之处在于
尽管不是所有arrest都result in convictions。但是officers多了，总共的conviction还是会多的。那这个削弱就不及E项的直接说根本抓的人就少了。

打个比方。。。多养几只猫的钱是有的，猫捉了老鼠，可能把它吃了，可能把它弄死了弄脏了地板。要处理弄脏地板的钱就没了。

按D选项：不一定所有捉老鼠都会导致弄脏地板
按E选项：猫多了，老鼠就不来了

E明显削弱了

maxminzt

3q