吸烟对健康的危害

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烟雾中主要含有尼古丁(烟硷)和一氧化碳,这是大家熟知的,据研究烟雾中所含有毒物质达二十种之多,已知其中五种动物实验中可引来癌肿。吸烟时,这些有毒物质除被燃烧掉或散发到空气中外,大约有20%的有毒物质随烟雾进入人体内,吸完一盒烟,大约有1毫克 It is well-known that nicotine (nicotine) and carbon monoxide are mainly contained in the smoke. According to the study, up to 20 kinds of toxic substances are contained in the smog, of which five kinds of animal experiments are known to cause cancer. When smoking, these toxic substances are not only burned or emitted into the air, about 20% of the toxic substances with the smoke into the body, smoking a box of cigarettes, about 1 mg
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