标题: one LAST, ask for you help! [打印本页] 作者: tobe 时间: 2002-9-3 13:34 标题: one LAST, ask for you help!
25. The fact that tobacco smoke inhaled by smokers harms the smokers does not prove that the much smaller amount of tobacco smoke inhaled by nonsmokers who share living space with smokers harms the nonsmokers to some degree. Many substances, such as vitamin A, are toxic in large quantities but beneficial in small quantities.
In which one of the following is the pattern of reasoning most similar to that in the argument above?
(B) Although a healthful diet should include a certain amount of fiber, it does not follow that a diet that includes large amounts of fiber is more healthful than one that includes smaller amounts of fiber. Too much fiber can interfere with proper digestion.
(E) Although watching television for half of every day would be a waste of time, watching television briefly every day is not necessarily even a small waste of time. After all, it would be a waste to sleep half of every day, but some sleep every day is necessary.
the ans. is E.
Why B is wrong?
Thanks in advandce!作者: primefang 时间: 2002-9-3 15:25
