B. Alcohol consumption away from home, for example in bars and restaurants, is much lower among people under 21 than it was in 1990. how to explainNevertheless, surveys show that people in that age-group drink just as much alcohol as they did before 1990i choose c but not sure .
how to explainNevertheless, surveys show that people in that age-group drink just as much alcohol as they did before 1990
i choose c but not sure .
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这个比率就是 喝酒然后出车祸死的/开车的人数
喝酒的人数不变,那出车祸死的人数也不变,分子不变
开车的人多了,分母变大
所以比率下降
我觉得是C对
大家觉得呢?
文章没有在说比率,Alcohol-related traffic deaths among people under 21 have decreased significantly since 1990,是说绝对值哦
此题无聊,没什么讨论意义,B里题外推测太多,不一定在外面喝酒回家才会出车祸,在家喝酒喝完了出去也会出车祸,何况在酒吧喝完了也未必一定要开车回去.
e 新 的 第一次 我选 B,第2次 我选 不知道。。
最后无奈选了 D, 再看解释。 我晕 恶心
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