Smithtown University’s fund-raisers succeeded in getting donations from 80 percent of the potential donors they contacted. This success rate, exceptionally high for university fund-raisers, does not indicate that they were doing a good job. On the contrary, since the people most likely to donate are those who have donated in the past, good fund-raisers constantly try less-likely prospects in an effort to expand the donor base. The high success rate shows insufficient canvassing effort.

Which of the following, if true, provides more support for the argument?

1. Smithtown University’s fund-raisers were successful in their contacts with potential donors who had never given before about as frequently as were fund-raisers for other universities in their contacts with such people.
   

2. This year the average size of the donations to Smithtown University from new donors when the university’s fund-raisers had contacted was larger than the average size of donations from donors who had given to the university before.
   

3. This year most of the donations that came to Smithtown University from people who had previously donated to it were made without the university’s fund-raisers having made any contact with the donors.
   

4. The majority of the donations that fund-raisers succeeded in getting for Smithtown University this year were from donors who had never given to the university before.
   

5. More than half of the money raised by Smithtown University’s fund-raisers came from donors who had never previously donated to the university.

NN们偏向A，但A的意思是S大学的fund-raisers成功接触潜在捐款人的频率和其他学校的fund-raiser一样高。并没有说succeeded in getting donations啊。完全是个无关选项嘛，就算有关也是说明这个学校的学生和其他学校的学生一样努力。反而有削弱的意思。问过几个以前XDF和其他GMAT学校的老师，都说是C。

看了以前的讨论的帖子，最终也没有完全得出个确切的结论来。而且几乎没有人对contacts........as frequently as提出过疑问。

as frequently as没有比率的意思吧？而且对C取非正好削弱了原文，很好的答案啊。

就算A表示比率问题，在考场上也不可能在1.5分钟内完成这么复杂的分析，相信老外也不可能做到。

两个美国鬼子教授的水平应该是可信的一个哲学博士，一个教育学博士。所以加强应该不怀疑就是A。

应为原文讨论的是人数，C选项虽然很像但是讨论的是钱数，不一回事。简单说：工作好坏不以拉来的钱数为英雄。

答案是A
A说的是fund raiser在接触从来没捐过钱的人时的成功率和其他学校一样。从原文知道总的成功率远高于其他学校。由此推出接触从来没捐过钱的比例小。所以support了原文观点。

C肯定不对。因为C是说，大部分以前捐过钱的根本不用fund raiser去联络。就是说fund raiser们的工作对象基本不是以前捐过的，也就是新的。削弱了原文。