It is easy to determine whether smoking is hazardous. Smoking may induce lung cancer.

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问题 It is easy to determine whether smoking is hazardous.
Smoking may induce lung cancer.

选项 A、Right
B、Wrong
C、Not mentioned

答案A

解析借助背景知识判断该句说法正确，因此推测答案可能是正确或没提到。利用题干中的 lung cancel (特征词)作为答案线索词，这样直接在文章中找到答案相关句：Cigarette smoking is believed by most research workers in this freld to be an important actor in the development of cancer of the lungs and cancer of the throat and is believed to be related to cancer of some other organs of the body．划线结构的内容说“从事这一领域研究的大部分研究工作者都认为吸烟是导致肺癌的一个重要因素。”因此判断问题句的说法正确。

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