It is easy to determine whether smoking is hazardous. Smoking reduces one’s life expectancy.

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问题 It is easy to determine whether smoking is hazardous.
Smoking reduces one’s life expectancy.

选项 A、Right
B、Wrong
C、Not mentioned

答案A

解析该题说的是：抽烟会缩短人们的预期寿命。该题源于第一段最后一个句子中的子句： tobacco smoking is associated with a shortened life expectancy抽烟会缩短人们的预期寿命。

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