詞匯選項(xiàng)
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
【正確答案】 A
【答案解析】 該題說的是：抽煙會(huì)縮短人們的預(yù)期壽命。原文最后一句說了：煙草與人的預(yù)期的壽命縮短有關(guān)。