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现代医学研究表明,吸烟对人体健康有广泛的不良影响,吸烟带来的危害已引起世界各国卫生部门的高度重视,根据1986年的一次抽样调查,我国15岁以上男性吸烟率达
Modern medical research shows that smoking has a wide range of adverse effects on human health. The harm caused by smoking has drawn great attention from the health authorities in various countries in the world. According to a sample survey conducted in 1986, the smoking rate among men over the age of 15 in our country reached