GWD-1-Q12

oibit

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.

oibit

答案是D。。我觉得是A啊。

w3d001

我不是牛 一起探讨下
首先weak 型 及2条思路路攻击1.evidence---结论自然不成立，2.evidence 和结论间有联系，断掉联系
所以最终的结果都是结论不成立。那么此题evidence是 去F州的退休人员减少，同时many local businesses in Florida cater to retirees 结论是this decline is likely to have a noticeably negative economic effect on these businesses
所以确定攻击的范围，是退休类business，所以a的话 就是说退休人多了 那退休类business自然就up，就support了

张大猴

文中没有florida和其他州的比较，而A比较了，是无关比较
正确答案是区分了相对数percentage和绝对数number的概念，虽然decreased by three percentage points 但绝对数有可能增加，那么a noticeably negative economic effect on these businesses的结论就不成立了

oibit

你好，谢谢你的分析。。

分析过程应该都没问题。 此题的结论是 F州的经济会遭到负面影响。。那如果去F州的退休人员更多话，那他们的BUSINESS水平就提升 ，所以应该就削弱了原题结论了哦

netbanker

D.

A 的比较在题目的假设中还是削弱