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45打哈欠的原因探究
科学家开始以为哈欠这东西会传染是因为人们看到别人打哈欠的嘴型后自己也就想打了，但是现在有科学家研究证明，把对方的嘴部挡住然后打哈欠后，受试者同样也会被传染开始打哈欠，问哪个能加强。选项死也想不起来了，再回忆回忆。
Most people believe that yawning is most powerfully triggered by seeing someone else yawn. This belief about yawning is widespread not only today, but also has been commonplace in many parts of the world in the past, if we are to believe historians of popular culture. Thus, seeing someone else yawn must be the most irresistible cause of yawning.
The argument is most vulnerable to which one of the following criticisms?
(A) It attempts to support its conclusion solely by restating that conclusion in other words.
(B) It cites the evidence of historians of popular culture in direct support of a claim that lies outside their area of expertise.
(C) It makes a sweeping generalization about yawning based on evidence drawn from a limited number of atypical cases.
(D) It supports its conclusion by appealing solely to opinion in a matter that is largely factual.
(E) It takes for granted that yawns have no cause other than the one it cites.
Answer is D |
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发表于 2011-3-16 04:38:23
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