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.