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　　阅读判断

　　Since 1939, numerous studies have been conducted to determine whether smoking is a health hazard. The trend of the evidence has been consistent and indicates that there is a serious health risk. Research teams have conducted studies that show beyond all reasonable doubt that tobacco smoking is associated with a shortened life expectancy.

　　Q: Smoking reduces one's life expectancy.

　　A、Right

　　B、Wrong

　　C、Not mentioned

　　【正确答案】A

　　【答案解析】该题说的是：抽烟会缩短人们的预期寿命。原文最后一句说了：烟草与人的预期的寿命缩短有关。