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题目材料：
People who watch television for an average of three hours per day are twice as likely to be overweight as those who watch television very rarely. It can be concluded that by watching television for as much as three hours each day, a person increases his or her chances of becoming overweight.
The argument is vulnerable to criticism on the ground that it
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A.takes it for granted that the condition of being overweight predisposes overweight people to watch television
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B.takes it for granted that no one who watches television more than three hours a day engages in regular physical exercise
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C.overlooks the possibility that those who watch television for an average of three hours per day are physically active at work
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D.overlooks the possibility that a dislike of physical exercise makes certain people more likely both to spend time watching television and to be overweight
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E.overlooks the possibility that there are some people who are overweight and yet watch no television at all
D显示答案
