标题: 弱问prep2-9 [打印本页] 作者: yunshishow 时间: 2011-8-29 21:31 标题: 弱问prep2-9 9. The Environmental Protection Agency frequently puts mandatory controls on toxic substances that present as little risk as one in a million chances to cause cancer.
(A) as little risk as one in a million chances to cause (B) as little risk as one chance in a million of causing (C) as little risk as one chance in a million that it will cause (D) a risk as little as one chance in a million for causing (E) a risk as little as one chance in a million for it to cause 答案选B。弱问这里的as...as...是比较结构么，但怎么看都觉得little risk（小风险）和one chance in a million（百万分之一的几率）概念上不对等，不能对比。求牛牛帮忙分析划线部分的结构。