115. Many people argue that tobacco advertising plays a crucial role in causing teen-agers to start or continue smoking. In Norway, however, where there has been a ban on tobacco advertising since 1975, smoking is at least as prevalent among teen-agers as it is in countries that do not ban such advertising. Which of the following statements draws the most reliable conclusion from the information above? (A) Tobacco advertising cannot be the only factor that affects the prevalence of smoking among teen-agers. (B) Advertising does not play a role in causing teen-agers to start or continue smoking. (C) Banning tobacco advertising does not reduce the consumption of tobacco. (D) More teen-agers smoke if they are not exposed to tobacco advertising than if they are. (E) Most teen-agers who smoked in 1975 did not stop when the ban on tobacco advertising was implemented. the key：A 想请教B，自认为是个迷惑选项。对B取非原文不成立，所以B应该是个assumption，而假设的答案也应该可以作为归纳题的答案。我自己是这么认为的，望高手指点 Transnational cooperation among corporations is experiencing a model renaissance among United States firms, even though projects undertaken by two or more corporations under a collaborative agreement are less profitable than projects undertaken by a singly corporation . The advantage of transnational cooperation is that such joint international projects may allow United States firms to win foreign contracts that they would not otherwise be able to win. 99. Which of the following is information provided by the passage above? (A) Transnational cooperation involves projects too big for a single corporation to handle. (B) Transnational cooperation results in a pooling of resources leading to high-quality performance. (C) Transnational cooperation has in the past been both more common and less common than it is now among United States firms. (D) Joint projects between United States and foreign corporation are not profitable enough to be worth undertaking. (E) Joint projects between United States and foreign corporations benefit only those who commission the projects. the key:C 请高手讲解一下，另外还有关于如何快速准确地排除其他选项。谢谢
我觉得对B取非后，原文仍然成立的，并非是一个weaken. 原文中：Many people argue that tobacco advertising plays a crucial role in causing teen-agers to start or continue smoking.
Maybe there are many factors in causing teen-agers to start or continue smoking. The tobacco advertising is likely to play a trivial role.If so , we can not conclude that tobacco advertising will exert the remarkable effect on causing teen-agers to start or continue smoking.
So , in my view, B is not assumption, but an irrelevant statement.
I agree with what you said here.Actually, there are some correlation between conclusion and assumption.But,tell the truth ,I can not help you a lot.I just have preparied for cracking GMAT earlier than you , and then made more mistakes. I can not clearly answer this question. But it is obvious that OG is the most important reference to GMAT.And you should put emphasie on it.If you have enough time , you can try LSAT.
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发表于 2003-10-28 18:53:00
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