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In the United States, of the people who moved from one state to another when they retired, the percentage who retired to Florida has decreased by three percentage points over the past ten years. Since many local businesses in Florida cater to retirees, this decline is likely to have a noticeably negative economic effect on these businesses.

Which of the following, if true, most seriously weakens the argument?

正确答案: D

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请指导GWD的第一套的第13题

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楼主
发表于 2010-1-5 02:12:33 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
GWD1-Q13:
In the United States, of the people who moved from one state to another when they retired, the percentage who retired to Florida has decreased by three percentage points over the past ten years.  Since many local businesses in Florida cater to retirees, this decline is likely to have a noticeably negative economic effect on these businesses.
Which of the following, if true, most seriously weakens the argument?
A.    Florida attracts more people who move from one state to another when they retire than does any other state.
B.    The number of people who move out of Florida to accept employment in other states has increased over the past ten years.
C.    There are far more local businesses in Florida that cater to tourists than there are local businesses that cater to retirees.
D.    The total number of people who retired and moved to another state for their retirement has increased significantly over the past ten years.
E.    The number of people who left Florida when they retired to live in another state was greater last year than it was ten years ago.
不明白为什么应该选D,D说总退休人数在过去十年增加,并不代表在佛罗里达洲的退休人口也增加。因为美国的总退休人数是不会影响佛罗里达的退休人口的人数的啼。我觉得是选A。有哪位好心的高人指点指点,在这里感激不尽。
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沙发
发表于 2010-1-5 06:24:35 | 只看该作者
题目说的是percentage,so,基数就是最强的weaken
板凳
 楼主| 发表于 2010-1-5 07:29:34 | 只看该作者

question

谢谢你点明了Percentage,但是还是不太明白,如果要weekend argument话就要说明退休后到佛罗里达的人数是增加的,不是吗?但是D说的是全国退休人数增加,那不关佛罗里达洲的事吖?
地板
发表于 2010-1-5 08:24:51 | 只看该作者
A.any other state无关

D.举个例子:若十年前总人数是100,去florida的是10 占10%. 现在去florida的减少3% 即7%, 但全国退休人数显著增加到了1000 ,那么7% of 1000 = 70.
5#
 楼主| 发表于 2010-1-5 09:55:29 | 只看该作者

Thank you

谢谢你,我想明白了。
Best luck for you.
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