According to the passage alcohol has something to do with bad breath mainly because______

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According to the passage, alcohol has something to do with bad breath mainly because______.

A.it keeps offending bacteria from reproducing

B.its smell adds to bad breath

C.it kills some helpful bacteria

D.it affects the normal flow of saliva

热搜:medline数据库中to字段是表示非英文文献的原文题名

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  • 正确答案:D
    解析:文章第三段第一句指出:Bad breath can happen whenever the normal flow of saliva slows...当唾液分泌减慢时就会发生口腔异味。第五段第一句还告诉我们酒精可以口腔干燥,所以我们可以推断酒精会影响唾液的分泌,即D项,正确是D。