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橘子骨头

骨头哥~~~我要疯掉鸟~ 旧Prep-cr整个做完正确率才60%~平均每道还1分51！啷个整嘛，收命啊！！！！我要加你，挨到问啊~

-- by 会员 森然 (2010/10/25 12:00:04)

我把邮箱留下来吧 cathyhu19(在) gmail.com 最近在外面，上网不是很方便。只能用手机登一下CD。看到这个回复的同学可以一起发邮件给我，我尽快答，恩，攒RP

shunliqumeiguo

跪求07prep解答!!!

57.    (34655-!-item-!-188;#058&007580)

Roland:  The alarming fact is that 90 percent of the people in this country now report that they know someone who is unemployed.

Sharon:  But a normal, moderate level of unemployment is 5 percent, with 1 out of 20 workers unemployed.  So at any given time if a person knows approximately 50 workers, 1 or more will very likely be unemployed.

Sharon's argument is structured to lead to which of the following as a conclusion?

(A) The fact that 90% of the people know someone who is unemployed is not an indication that unemployment is abnormally high.
(B) The current level of unemployment is not moderate.
(C) If at least 5% of workers are unemployed, the result of questioning a representative group of people cannot be the percentage Roland cites.
(D) It is unlikely that the people whose statements Roland cites are giving accurate reports.
(E) If an unemployment figure is given as a certain percent, the actual percentage of those without jobs is even higher.

答案A, 好混乱哦。。。能解释下不？

橘子骨头

我自己顶一下啦·····大家重新来讨论吧。

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