求助PREP上的一道逻辑题~！~~灰常纠结。。。。

livdl

75.    (33198-!-item-!-188;#058&007254)

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.
增加了8分钱税，但是香烟销售下降10%，对比没增税之前只下降1%，说明征税有用。问加强？B选项再说关于香烟有害身体健康对于那些经常吸烟的人的影响没变化，在征税之后，言下之意应该是说吸烟者不是因为吸烟有害身体健康才减少吸烟，而是确实因为税收

我想知道为什么D不行呢 ，收入少了征税高了所以买的人就少了啊 销售不就下降了么~

sdcar2010

many = 1 or 100. So many could be 1.

2013rainbow

75.    (33198-!-item-!-188;#058&007254)

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.
增加了8分钱税，但是香烟销售下降10%，对比没增税之前只下降1%，说明征税有用。问加强？B选项再说关于香烟有害身体健康对于那些经常吸烟的人的影响没变化，在征税之后，言下之意应该是说吸烟者不是因为吸烟有害身体健康才减少吸烟，而是确实因为税收

我想知道为什么D不行呢 ，收入少了征税高了所以买的人就少了啊 销售不就下降了么~

-- by 会员 livdl (2012/2/1 10:34:47)

D证明烟的购买量下降是因为人民收入而不是税收。所以非但不加强反而削弱。看清楚题目中的结论与税收有关，所以想要加强他的两种方法是提供进一步支持税收的论据，或者排除他因。B正确是因为排除了他因。D是提供了她因所以削弱。

livdl

many = 1 or 100. So many could be 1.

-- by 会员 sdcar2010 (2012/2/1 11:10:19)

谢谢

livdl

75.    (33198-!-item-!-188;#058&007254)

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.
增加了8分钱税，但是香烟销售下降10%，对比没增税之前只下降1%，说明征税有用。问加强？B选项再说关于香烟有害身体健康对于那些经常吸烟的人的影响没变化，在征税之后，言下之意应该是说吸烟者不是因为吸烟有害身体健康才减少吸烟，而是确实因为税收

我想知道为什么D不行呢 ，收入少了征税高了所以买的人就少了啊 销售不就下降了么~

-- by 会员 livdl (2012/2/1 10:34:47)

D证明烟的购买量下降是因为人民收入而不是税收。所以非但不加强反而削弱。看清楚题目中的结论与税收有关，所以想要加强他的两种方法是提供进一步支持税收的论据，或者排除他因。B正确是因为排除了他因。D是提供了她因所以削弱。

-- by 会员 2013rainbow (2012/2/1 13:01:21)

谢谢~那收入减少与税收增加不可以一起看么？难道我想多了。。。。

2013rainbow

你应该专注题目问的信息，你选的选项让人有辩驳的空间就是不对的。

livdl

你应该专注题目问的信息，你选的选项让人有辩驳的空间就是不对的。

-- by 会员 2013rainbow (2012/2/1 13:43:47)

谢谢啦！

逻辑复习一直没有头绪啊怎么办。。。15号就要考了。。。。。

2013rainbow

多总结一下吧，数量没有用。比如削弱体题可以想想怎么加强，反之亦然。可以试着自己总结规律，假设自己要教学生。这样会比较有效。

livdl

多总结一下吧，数量没有用。比如削弱体题可以想想怎么加强，反之亦然。可以试着自己总结规律，假设自己要教学生。这样会比较有效。

-- by 会员 2013rainbow (2012/2/1 14:43:08)

单数自己总是感觉不是想太多了 就是没想到位啊。。。。有的时候读题还很慢。。。。含泪求指教。。。。！

2013rainbow

这和平时积累有问题，事实是规律可以总结，语言需要积累。现实的分析自己的状况，负面情绪没有实用价值。