请教一道PREP 题，百思不得其解

seasons2011 · 发表于 2011-10-26 12:04:36

没在整理版的文件里找到这题，费了姥姥地劲才打出来。

In the years followingan eight-cent increase in the federal tax on a pack of cigarettes, sales ofcigarettes fell ten percent. In contrast, in the year prior to the taxincrease, sales had fallen one percent. The volume of cigarette sales istherefore strongly related to the after-tax price of a pack of cigarettes.

Which of the following, most strengthen the argument above?

A. During the 2nd year after the taxincrease, 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 tax increase.
C. Most consumers were unaware that the tax was going to increase.
D. By the year following the cigarette taxincrease, 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.

seasons2011 · 发表于 2011-10-26 12:07:00

答案选B,我选E. B & E难道不是从不同的方向，去排除一些可能的误解，所以，两个都可以选，我当时觉得E好像和主题更接近一些？？

fdunan · 发表于 2011-10-26 14:18:47

E: variety of cigarettes与sales无关
B: 取非削弱。如果information available to consumers on the health risks of smoking有变化，可能这个information才是sales变化的原因，削弱。
常识判断也是B优于E

fdunan · 发表于 2011-10-26 14:20:09

如果E要成立，还得一个前提：greater variety of cigarettes会导致sales的提高

seasons2011 · 发表于 2011-10-26 22:56:48

谢谢fdunan！！我还是没被说服。如果information available to consumers on the health risks of smoking可能是sales变化的原因之一，难道 variety of cigarettes 就不是SALES可能变化的原因之一么？？

seasons2011 · 发表于 2011-11-6 12:18:21

在我看完OG之后，我明白了，呵呵。。。
E中说MANY CONSUMERS，不是全部的啊，所以肯定错了。
这算不算GMAT的一款思路呢？

请教一道PREP 题，百思不得其解

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