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题库 / Prep2012-CR-69
Southington University's fund-raisers succeeded in getting donations from 80 percent of the potential donors they contacted this year. This rate would be the expected rate if the only potential donors contacted were those who have donated in the past. But good fund-raisers constantly contact less likely prospects in an effort to expand the donor base. Thus the high success rate, far from showing that the fund-raisers did a good job, shows insufficient canvassing effort.
Which of the following, if true, most seriously weakens the argument?
Among potential donors contacted by Southington University's fund-raisers, the majority of those who did not make donations were people who had made donations to the university in the past.
The amount of money raised by Southington University's fundraisers this year was lower than the amount they had raised in any of the previous several years.
Individual donations made to Southington University this year were, on average, slightly larger than were average individual donations made to many other universities.
Fund-raisers contacting past donors are not only to get new donations but also to get names of potential new donors to contact.
The majority of the donations that fund-raisers succeeded in getting for Southington University were from donors who had never given to the university before.
B。irr，低不代表不努力也不能反映其是否努力了（根据题目提供的标准：好的donator是要扩大自己的base的，所以如果是坏的donator那么他们的base更多是由past donator组成的。
C。irr，个人捐款的多少不是评判标准。
D。你拿到new的potential donator的名字不代表你会用它，所以无法通过这个结合标准来判别这群raiser是不是好raiser。
E.correct，逻辑链就不解释了，前文说的很清楚了。
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