一道逻辑题。。看不懂啊

小c考托福 · 发表于 2012-8-14 23:19:55

GWD-10-Q14
Yeastscapable of leavening bread are widespread, and in the many centuries duringwhich the ancient Egyptians made only unleavened bread, such yeasts mustfrequently have been mixed into bread doughs accidentally. The Egyptians,however, did not discover leavened bread until about 3000 B.C. That discoveryroughly coincided with the introduction of a wheat variety that was preferableto previous varieties because its edible kernel could be removed from the huskwithout first toasting the grain.

Which ofthe following, if true, provide the strongest evidence that the twodevelopments were causally related?

A. Even after the ancient Egyptians discoveredleavened bread and the techniques for reliably producing it were well known,unleavened bread continued to be widely consumed.
B. Only when the Egyptians stopped the practiceof toasting grain were their stone-lined grain-toasting pits available forbaking bread.
C. ！Heating a wheat kernel destroys itsgluten, a protein that must be present in order for yeast to leaven breaddough.
D. The new variety of wheat, which had a moredelicate flavor because it was not toasted, was reserved for the consumption ofhigh officials when it first began to be grown.
E. Because the husk of the new variety of wheatwas more easily removed, flour made from it required less effort to produce

正确答案是c

小c考托福 · 发表于 2012-8-14 23:21:25

还有一道。。。

GWD-10-Q29：GWD-2-14 A
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?

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

答案选A

一道逻辑题。。看不懂啊

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一道逻辑题。。 看不懂啊

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一道逻辑题。。看不懂啊