请教去年8月机井一道

mymengming

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.

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?

(A)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

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

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

(D)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.

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

 选E         (ethyl 转载本月机经)

偶觉得应该是C,   请NN帮忙

amilyfrings

针对subcribers这个群体中的情况，c是正确的，但是c正确不能表明Finding of a survey of advertisers in Systems magazine是accurate的,所以c不符合题目的要求。

sbucribers只是“订阅”杂志的人，给定题目的条件，30%的order来自35岁以下的订阅者，同时大多数order来自35岁以下的人，那么只有是大多数的order并非来自那些杂志的订阅者，而是来自其他群体，才符合逻辑。

kathy8446

对啊，C与第二个survey是矛盾的。第二个survey说大部分order来自35以下人群。但是C却说来自35岁以上的subscribers。

mymengming

哦,原来题目意思看错了,多谢

题目的叙述还真是恶心阿

[此贴子已经被作者于2006-7-24 22:32:17编辑过]