2. 外语
  3. When cut, the synthetic material fiberglass, like asbestos, releases microscopic fibers into the air. It is known that people wh

When cut, the synthetic material fiberglass, like asbestos, releases microscopic fibers into the air. It is known that people wh

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问题 When cut, the synthetic material fiberglass, like asbestos, releases microscopic fibers into the air. It is known that people who inhale asbestos fibers suffer impairment of lung function. A study of 300 factory workers who regularly cut fiberglass showed that their lung capacity is, on average, only 90 percent of that of a comparable group of people who do not cut fiberglass. The statements above, if true, most strongly support which of the following hypotheses?
选项 A、People who work with fiberglass are likely also to work with asbestos.
B、Fiberglass fibers impair lung function in people who inhale them.
C、Fiberglass releases as many fibers into the air when cut as does asbestos.
D、Coarse fibers do not impair lung function in people who inhale them.
E、If uncut, fiberglass poses no health risk to people who work with it.
答案B
解析 注意本题为“从上而下”类的support，即归纳，注意把握逻辑层次结构。(B)的内容恰好与段落中的第二句话相吻合，因此(B)正确；(A)的“工作中接触玻璃纤维的人非常有可能也会接触石棉”，在段落中并没有涉及；(C)为新的比较，必然不对；(D)中的Coarse fibers为新概念；(E)中的if uncut在段落中也未提及。注意体会(E)选项可以作为一个支持上面段落的推理的答案，但本题为归纳类。
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