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  3. According to a recent survey, marriage is fattening. Cited as evidence is the survey’s finding that the average woman gains 23 p

According to a recent survey, marriage is fattening. Cited as evidence is the survey’s finding that the average woman gains 23 p

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问题 According to a recent survey, marriage is fattening. Cited as evidence is the survey’s finding that the average woman gains 23 pounds and the average man gains 18 pounds during 13 years of marriage. The answer to which of the following questions would be most relevant in evaluating the reasoning presented in the survey?
选项 A、Why was the period of time studied in the survey 13 years, rather than 12 or 14?
B、Did some of the men surveyed gain less than 18 pounds during the time they were married?
C、How much weight is gained or lost in 13 years by single people of comparable age to those surveyed?
D、Were the women surveyed as active as the men surveyed, at the time the survey was made?
E、Will the reported gains be maintained over the lifetimes of the persons surveyed?
答案C
解析 段落推理为由一个“evidence”而得出一个解释性的结论：“marriage is fattening”。评价应寻求一个选项，对其“yes”与“no”两方面的回答起到不同的作用。若我们知道可比较年龄组的独身者在13年内体重增加的量，如(C)所说，那么若这些独身者体重增加大于上面统计数字，就反对了上面的推理，因为这些独身者也变胖了，则可能并非婚姻使人变胖，完全有可能是人长大而体重自然增加了；若他们体重增加小于上面统计数据，则支持了上面的推理。所以(C)是一个很好的评价，因此(C)正确；(B)易误选，但(B)中的“some”并不能反对上面推理中的“average”.
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