2. 外语
  3. Among 169 cases, the smokers______85. 79% , and the ratio between males and females is 3. 7 to 1.

Among 169 cases, the smokers______85. 79% , and the ratio between males and females is 3. 7 to 1.

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问题 Among 169 cases, the smokers______85. 79% , and the ratio between males and females is 3. 7 to 1.
选项 A、answer for
B、account for
C、take up
D、sum up
答案B
解析 A项answer for“因……而受罚”；B项account for“(比例)占；对……负有责任”；C项take up“拿起”；D项sum up“总结”。
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