【单选题】

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

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根据网考网移动考试中心的统计，该试题：

1%的考友选择了A选项

13%的考友选择了B选项

6%的考友选择了C选项

80%的考友选择了D选项

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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