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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.
XX大学筹款成功率高于其他学校筹款人，因为他们只对之前筹款成功的人筹款，所以不代表筹款成功率高。看选项抓主干
A: 该大学联系那些从未被联系过的人，成功频率与其他学校一致；成功率其实一样，正确
B: 今年大学筹款人开始筹款时，新捐款人给的钱比旧筹款人给的多；无法说明成功率, 且negative
C: 大部分来自旧捐款人的捐款都是在未与他们联系的情况下，捐赠的。无法说明成功率
D: 今年成功募集款项中主要来自于那些没有捐过款的人。说明了成功率高，negative
E: 超过一半的捐款来自于那些没有捐过款的人，说明了成功率高，negative
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