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 concentrating 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. 答案是 The advertisers expected their product sales to increase if they stayed with the changed publication, but to decrease if they withdrew. 这还是说的销量，和moral道德无关啊。
嗯谢谢你了，是我对题意理解不对，所以才不懂的。
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