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.

看了参考答案，竟然说是D，怎么可能呢？

大家说应该是选什么啊？

d是对的，理由是文章说了比例减小了，所以一定是给经济带来负面影响，答案告诉你，即使比例减小，总人数增加，所以实际人数可能并没减少，所谓负面影响也就是无稽之谈了

D没问题, 想问一下E为什么错.

原文结论是来Florida的退休人员占退休以后移居人的比例下降会导致经济不好.

E: Florida州自己的退休人员减少而导致经济不好, 有点像他因削弱. 为何不对?