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GWD-2-Q14:
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（不太可能成为新的捐款者的人） in an effort to expand the donor base.  The high success rate shows insufficient canvassing（游说） effort.
成功率不能说明融资者工作做得好       
分类思想，学校融资来源：以前捐助者+ 融资者通过努力新赢得的捐赠。
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. 既然未捐赠人的比率和别的大学一样高,说明80%的高比率并不是来自未捐赠人,支持了结论  逻辑中的比较句型 就是说捐赠一共来自两部分，未曾捐赠的人的成功率和别的学校一样高，那么特别高的这个80%就应该来自于另一部分，也就是曾捐赠过的人。那么就说明了融资者没有努力。做这样的题把不变的部分扔掉，考虑另一半变得部分对最终结果的影响
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.(weaken)
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. 融资人未联系就得来的捐助人，与原文无关。
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. (weaken)
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. (weaken)

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GWD-1-Q33:仔细读题目
A company plans to develop a prototype weeding machine that uses cutting blades with optical sensors and microprocessors that distinguish weeds from crop plants by differences in shade of color.  The inventor of the machine claims that it will reduce labor costs by virtually eliminating the need for manual weeding.
方案可行类，原文有假设，也就是方案实行由前提。在这里就是庄稼和杂草的颜色可分辨。如果削弱，就说前提不成立。
Which of the following is a consideration in favor of the company’s implementing its plan to develop the prototype?

A.        There is a considerable degree of variation in shade of color between weeds of different species.分辨野草的颜色没有用，要分辨的是野草和庄稼的颜色
B.        The shade of color of some plants tends to change appreciably over the course of their growing season.
C.        When crops are weeded manually, overall size and leaf shape are taken into account in distinguishing crop plants from weeds.
D.        Selection and genetic manipulation allow plants of virtually any species to be economically bred to have a distinctive shade of color without altering their other characteristics.方案可行
E.        Farm laborers who are responsible for the manual weeding of crops carry out other agricultural duties at times in the growing season when extensive weeding is not necessary.[D]
公司想发展一种割草机，这种割草机是通过感光器和微处理器区别杂草和庄家的。同时发明者说这将大大减少劳动成本，因为它根本不再需要人工除草了。
问题问下面哪一条支持了公司发展这种机器。
D选项实际上是说了一个条件使得这种割草器具有实用价值。

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GWD-1-Q17: OG12th 原题
The spacing of the four holes on a fragment of a bone flute excavated at a Neanderthal campsite is just what is required to play the third through sixth notes of the diatonic scale—the seven-note musical scale used in much of Western music since the Renaissance.  Musicologists therefore hypothesize that the diatonic musical scale was developed and used thousands of years before it was adopted by Western musicians.

Which of the following, if true, most strongly supports the hypothesis?

A.        Bone flutes were probably the only musical instrument made by Neanderthals.
B.        No musical instrument that is known to have used a diatomic scale is of an earlier date than the flute found at the Neanderthal campsite.
C.        The flute was made from a cave-bear bone and the campsite at which the flute fragment was excavated was in a cave that also contained skeletal remains of cave bears.
D.        Flutes are the simplest wind instrument that can be constructed to allow playing a diatonic scale.
E.        The cave-bear leg bone used to make the Neanderthal flute would have been long enough to make a flute capable of playing a complete diatonic scale
四个窟窿的笛子能够演奏七音阶中的第3到6个，因此推论N 人在几千年前就开始用七音阶了，中间缺少一个桥梁：E，就是说这个笛子本来就是七个窟窿，只是保留下来四个窟窿
我觉得B错在,结论是thousands of years before it was adopted by Western musicians.,并没有说N人就生活在几千年前，如果N人生活在几百年前，B项还是削弱呢
GWD-1-Q33:仔细读题目