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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.
argument以成功率作为考量因素：成功率80% means 找了10个人募捐，有8个人愿意捐。（至于这八个人捐了多少donations size，无所谓）
A：S大学募捐者在联系过去未捐款的捐赠人时，成功率和其他大学募捐者一样 （总成功率=联系捐过款的+联系没捐款的，S的总成功率远大于其他大学，但没捐过款的成功率等于其他大学--------联系没捐过款的占总成功率的比例远远小于其他大学比例，----不成功）
B：成功率跟捐款量没关系 （也许捐款量看似能影响对fund-raiser的评估，但文中只有一个评估标准：成功率）
C：1.成功率跟捐款量无关 2. argument说的是 raiser联系到的人中多是过去捐过的（联系的很轻松），C中说的是大多数donation来自于没联系的过去捐过的，跟提干信息无关
DE讲的依然是捐赠量donations而不是成功率success rate，而且方向是weaken而不是support
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