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标题: PREP-1-75 [打印本页]

作者: Eminem 时间: 2010-4-7 11:48 标题: PREP-1-75

In the year following an eight-cent increase in the federal tax on a pack of cigarettes, sales of cigarettes fell ten percent.In contrast, in the year prior to the tax increase, sales had fallen one percent.The volume of cigarette sales is therefore strongly related to the after-tax price of a pack of cigarettes.

Which of the following, if true, would most strengthen the argument above?

A. During the second year after the tax increase, cigarette sales increased by a significant amount.

B. The information available to consumers on the health risks of smoking remained largely unchanged in the period before and after the tax increase.

C. Most consumers were unaware that the tax on cigarettes was going to increase.

D. During the year following the cigarette tax increase, many consumers had less income, in inflation-adjusted dollars, than they had had in the previous year.

E. During the year after the tax increase, there was a greater variety of cigarettes on the market than there had been during the previous year.

OA是B。我选了D，当时做的时候觉得不太对劲，但没理清楚思路为什么B才是正确答案。B只是排除了一个他因，但是能比D更加的strengthen呢？

作者: 小兔牙 时间: 2010-4-8 14:37

个人觉得Ｄ有点啰嗦

作者: NicoleYu 时间: 2010-4-12 14:19

这个题目有点意思

作者: NicoleYu 时间: 2010-4-12 14:19

In the year following an eight-cent increase in the federal tax on a pack of cigarettes, sales of ci ...
Eminem 发表于 2010-4-7 11:48

刚看的时候觉得D也是有点道理的，毕竟收入少了就会少买烟。但是再一细想就不对了，我们要选的是对文章结论的支持，那么文章的结论是什么呢？文章的结论是：香烟的税后价格决定了香烟的销量。而D说的是税收增加后的那一年收入减少了，那么其实是在说收入决定了香烟的销量（即使价格不变，收入减少了，那么香烟销量不是也会减少么）。这样一来，D选项就完全不是支持原文结论的了。

反观B选项，排除了健康相关信息的影响，支持了价格是影响因素的结论，所以应该选择B

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