狒狒75

Advertisers are often criticized for their unscrupulous manipulation of people's tastes and wants. There is evidence, however, that some advertisers are motivated by moral as well as financial considerations. A particular publication decided to change its image from being a family newspaper to concertrating one sex and violence, thus appealing to a different readership. Some advertisers withdrew their advertisements from the publication, and this must have been because they morally disapproved of publishing salacious material.

Which strengthen the argument?
A. The advertisers switched their advertisements to other family newspapers.
B.Some advertisers switched from family newspaper to advertise in the changed publication.
C.The advertisers expected their product sales to increase if they stayed with the changed publication, but to decrease if they withdrew.
D. People who generally read family newspapers are not likely to buy newspapers that concentrate on sex and vilence.
E.It was expected that the changed publication would appeal principally to those in a different income group.

C是答案，我可以选对。但是却说不出来为什么A错。谢谢大家赐教！

这道题的题意是：有一些广告商不仅考虑经济利益，也同时重视道德。比如当一个家庭报纸变成以色情和暴力为主要内容的时候，它的一些广告商就撤销在这个报纸上的广告了，因此得到证明这些广告商之所以撤销在这份报纸上的广告是出于道德上的考虑。

原来的题目逻辑不是非常严谨，由1)报纸宣传不道德内容2）广告商不在它家广告，就得出广告商有道德中间还需要个桥梁。广告上也有可能是因为在这家报纸广告的效果差出于经济利益不继续在它家做广告。所以C就排除了这个原因。A说广告商改去别的报纸上做广告了，这个就是无关选项了。他们是否去其他家报纸做广告并不能说明和影响他们不继续在这家堕落的报纸上广告的原因。所以只能选C。

谢谢juneyingmao：但是这不就变成我在A的基础上进行多次的假设？

谢谢viviansecret：我想我可以认为是ad不认同这家报纸堕落，就转去没有堕落的报纸，好像也说得通