[转载(本月机经，尚未添加)]求助一道ZT

ethyl

昨天一位朋友提供了一道所谓的真题，请大家讨论一下答案

Finding of a survey of Systems magazine subscribers:  Thirty percent of all merchandise orders placed by subscribers in response to advertisements in the magazine last year were placed by subscribers under age thirty-five.>>

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Finding of a survey of advertisers in Systems magazine:  Most of the merchandise orders placed in response to advertisements in Systems last year were placed by people under age thirty-five.>>

>>

For both of the findings to be accurate, which of the following must be true?>>

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More subscribers to Systems who have never ordered merchandise in response to advertisements in the magazine are age thirty-five or over than are under age thirty-five.

Among subscribers to Systems, the proportion who are under age thirty-five was considerably lower last year than it is now.

Most merchandise orders placed in response to advertisements in Systems last year were placed by Systems subscribers over age thirty-five.

Last year, the average dollar amount of merchandise orders placed was less for subscribers under age thirty-five than for those age thirty-five or over.

Last year many people who placed orders for merchandise in response to advertisements in Systems were not subscribers to the magazine.

[此贴子已经被作者于2005-8-23 4:38:09编辑过]

ethyl

我从我们区转过来的。。。算本月JJ

这是我考试的时候遇到的题，当场就晕了。。。狂打击，，当时好紧张

竟然在这里遇上。。。

又看了一遍，我选E

[此贴子已经被作者于2005-8-22 15:32:50编辑过]

拽月

支持e

happyfish0517

这是CR题？

ETHYL改一下标题吧~让JJ整理的作者可以收录~嘻嘻

ethyl

改了。

Youknowme

收到收到,昨晚本来是要加进去的.头有点疼,先就睡了!

谢谢ethyl

蜡笔小西

agree with E.

Thanks to Ethyl.

zikineko

thanks for sharing!!!