Which of the following can be the best title of this passage? According to the passage, why does a drink bring serious results

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问题 Which of the following can be the best title of this passage?
According to the passage, why does a drink bring serious results to a smoker?

选项 A、Because it may act as a dissolving agent.
B、Because he is malnourished.
C、Because the liver can’t dispose of alcohol
D、Because the liver has to clean the toxins.

答案A

解析 这是一道细节题。文章第二段指出:他喝的酒精本身没有致癌性,但是,它可能充当了溶剂,溶解以焦油形式残留下来的烟草毒物,使致癌物顺利通过口腔和咽喉的隔膜。这说明,A“因为酒精可能充当溶剂”,与文章的意思符合。B和D明显不是原因;C与文章的意思不符合。
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