求助GWD1 Q13

希望来得及

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?

1. Florida attracts more people who move from one state to another when they retire than does any other state.
   
2. The number of people who move out of Florida to accept employment in other states has increased over the past ten years.
   
3. There are far more local businesses in Florida that cater to tourists than there are local businesses that cater to retirees.
   
4. The total number of people who retired and moved to another state for their retirement has increased significantly over the past ten years.
   
5. 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.
   答案为D，这道题也是OG12的87题，不过选项内容有变动。一直想不清楚，答案是怎么削弱的！希望牛人可以帮助解释一下，真诚感谢！
   

pinkyhuayin

文章说F州的相关产业经济下降的根据是，看到的F州Retirees比例下降，但是如果所有州的Retirees数量增加，F州的Retirees所占所有州的Retirees比例就下降。同时单单看F州的话，虽说比例下降了，但人数可以是不变，或者是增加的，所以不一定会使相关产业经济走下坡路。

-- by 会员 BlairVander (2010/9/20 10:41:47)

解释的很好啊，我也是错了两次，看来楼上的分析很明白，不过想了一下自己错的原因，也很大家分享下，就是原句的3%没有理解到比较的对象，也就是这个题目的迷惑点，如果把句子看成， the percentage who retired to Florida has decreased by three percentage ，of the people who moved from one state to another when they retired,就豁然开朗啦。

希望来得及

这题我错过几次还是没想明白，求牛人解释！谢谢！

shijiaxin13

题目意思你应该是了解的三，就是讲的退休搬到另一个州的人，他们中搬到F的比例下降了，然后F很多地方商业都是为这些退休的服务。那么就推断说会对F的经济造成影响。
你想过没有，比例下降不代表人口下降。反驳这个论点最好的就是证明这几年退休搬到其他州的人口增多。

希望来得及

额……我还是觉得别的州状况跟F的状况应该是没有关系的吧……

sayysong

额……我还是觉得别的州状况跟F的状况应该是没有关系的吧……

-- by 会员 希望来得及 (2010/6/30 11:16:49)

不是“别的州”，The total number of people who retired and moved to another state是说的US整体，退休后到别处的人在number上增多了，即使percent下降，净人口还是有可能增长的，所以是weaken。

cartier921

请教一下A哪里错了呢？谢谢

x_fan

请教一下A哪里错了呢？谢谢

-- by 会员 cartier921 (2010/7/21 18:43:52)

你比如北京的经济不好了
然后一哥们说北京经济还是比宁夏经济好啊
难道就能说明北京的经济好了？

文章里说的是F自己的问题，跟其他城市没关系

BlairVander

文章说F州的相关产业经济下降的根据是，看到的F州Retirees比例下降，但是如果所有州的Retirees数量增加，F州的Retirees所占所有州的Retirees比例就下降。同时单单看F州的话，虽说比例下降了，但人数可以是不变，或者是增加的，所以不一定会使相关产业经济走下坡路。

onlylee0302

一年前的答案依然受用，多谢！~