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  3. Cigars Instead Smoking one or two cigars a day doubles the risk of cancers of the lip, tongue, mouth, and throat, according

Cigars Instead Smoking one or two cigars a day doubles the risk of cancers of the lip, tongue, mouth, and throat, according

admin2011-01-05  39
问题                             Cigars Instead
    Smoking one or two cigars a day doubles the risk of cancers of the lip, tongue, mouth, and throat, according to a government study.
    Daily cigars also increase the risk of lung cancer and cancer of the esophagus, and increase the risk of cancer of the larynx (voice box) six fold , say researchers at the National Cancer Institute in Bethesda, Maryland.
    In addition, the report revealed that smoking three or four cigars a day increased the risk of oral cancer to 8 times the risk for nonsmokers and the risk of esophageal cancer by four times the risk of nonsmokers.
    The health effects of smoking cigars is one of eight sections of the article "Cigars: Health Effects and Trends". The researchers report that, compared with a cigarette, a large cigar emits up to 90 times as much carcinogenic tobacco-specific nitrosamines.
    "This article provides clear and invalidating information about the disturbing increases in cigar use and the significant public health consequences for the country. " said Dr. Richard Riausner, director of the National Cancer Institute, in a statement.
    "The data are clear—the harmful substances and carcinogens in cigar smoke, like cigarettes, are associated with the increased risks of several kinds of cancers as well as heart and lung diseases. " he added. "In other words, cigars are not safe alternatives to cigarettes and may be addictive. "
    "To those individuals who may be thinking about smoking cigars, our advice is—don’t. Tothose currently smoking cigars, quitting is the only way to eliminate completely the cancer, heart and lung disease risks. " warned Klausner.
    According to a National Cancer Institute press releases , there haven’t been any studies on the health effects on nonsmokers at cigar social events, but "’"a significant body of evidence clearly demonstrates an increased lung cancer risk from secondhand smoke. "  
According to the report, smoking three or four cigars a day______.
选项 A、increases the risk of oral cancer for non-smokers.
B、greatly increases the risk of oral cancer for smokers.
C、increases the risk of more than one cancer for non-smokers.
D、greatly increases the risk of more than one cancer for smokers.
答案D
解析 第三段中“smoking tlaree or four cigars a day increased the risk of oral cancer to 8 times the risk for nonsmokers and the risk of esophageal cancer by four times the risk of nonsmokers．”谈论了吸烟者患癌症的可能性(与不吸烟者相比分别增加到8倍和4倍)。
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