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题库 / GMATLA-CR-3
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?
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.
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.
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.
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.
More than half of the money raised by Smithtown University's fund-raisers came from donors who had never previously donated to the university.
这道题我一开始也是错选了C的，但是后来认真想了一下感觉逻辑是这样的：
80%成功率，貌似很高但其实并不意味着他们工作做得好。
下面说了一个可能的原因：过去捐过款更倾向于在捐款。所以评判好的募捐人的标准是他们在从没捐过款的成功率。
推理到这里，直接加强这个逻辑的就是，说明SU游说的人里面多数都是捐过款的，也就是说SU并没有游说更多没有捐款的人。所以A符合了。A就告诉你 其实smith的筹款人在游说从来没有捐过款人的时候成功率和别的学校筹款人一样。
C很容易迷惑因为C貌似说的是，SU游说的人里面多数都是捐过款的人， 但其实C的真实意思是，多数捐过款的人不通过募捐者就捐款了。和SU游说的人群没有关系。并没有说明SU游说的人里面多数都是捐过款的。所以不对。
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