和请教三道题
GWD1-Q17:
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.
我选C,答案选E不明白
GWD1-Q18:
It is illegal to advertise prescription medications in Hedland except in professional medical journals or by mail directly to physicians. A proposed law would allow general advertising of prescription medications. Opponents object that, in general, laypersons lack the specialized knowledge to evaluate such advertisements and might ask their physicians for inappropriate medications. But since physicians have the final say as to whether to prescribe a medication for a patient, the objection provides no grounds for concern.
Which of the following would it be most useful to establish in order to evaluate the argument?
A. Whether nonprescription medications can interact with and block the action of any prescription medications that could be advertised to the general public
B. Whether most prescription medication advertisements directed at the general public would be advertisements for recently developed medications newly available by prescription
C. Whether prescription medication advertisements directed at the general public would appear on television and radio as well as in print
D. Whether physicians are more likely to pay attention to advertising directed to the general public than to advertising directed to physicians
E. Whether physicians are likely to succumb to pressure from patients to prescribe inappropriate medications
我选D,答案选E不明白
GWD1-Q33：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.
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.
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.
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.
我选A，答案选D,不明白。。。
谢谢！
17题参加happyglf126同学的解释http://forum.chasedream.com/dispbbs.asp?BoardID=24&replyID=3090590&id=345066&skin=0 :
因为出土的只是一部分而不是一整只笛子（a fragment of a bone flute ），而这个不完整长笛上那4个洞洞的间隔表明了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
而E选项说做这个笛子的骨头cave-bear leg bone 长度足以playing a complete diatonic scale.所以就support了
不知道看明白没，换种说法就是：出土了一个烂得只剩一部分的骨笛，上面的仅存几个洞洞的间隔距离表明了这种笛是XXX，然后做这个骨笛的那根腿骨头的长度又足够长来做XXX，所以支持了这个骨笛是XXX
18题：题目讨论是核心就是 公众广告对开处方有没有影响。 E 因为顾客相信广告，医生屈服于顾客的压力，所以广告对处方产生影响。
advertising directed to physicians 是 legal的，跟 A proposed law 和 Opponents 所争论的内容无关。
最后一题，他要筛选的是 一个种子的成熟品和不成熟品，不是 different species。 收A水稻跟收B水稻完全可以设定2种标准，这玩意可是高科技。
你看到D应该被启发了，这么对的选项怎么能不选呢。
呵呵，谢谢NN hansomecd咯，说的好清楚啊~
我觉得GWD1-Q18我错选的D比较有迷惑性，我把思考后的结果贴在这里，对这道题有类似疑惑的同学可以参考哈
GWD1-Q18：D 错误的选项可以这样理解，就是选项中有几个主体：医生、患者、对医生的广告、对患者的广告，其中对医生的广告针对的主体是医生、而对患者的广告针对的主体是患者，D中所说的虽然也构成一定程度的解释，但是前提是着重考虑了对患者的广告对医生的影响，所以把矛盾关系弄的不清楚了。所以不考虑
还有对最后一题，也就是GWD1-Q33（加个标号，不然就搜不到咯~）
是区别杂草和作物，~呵呵~所以A中说区别不同种类的杂草，是不对的哈~
同问
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