标题: 求教PREP SC一道题 请各位大牛帮帮忙 [打印本页] 作者: sbwhhnybz 时间: 2010-5-9 16:29 标题: 求教PREP SC一道题 请各位大牛帮帮忙 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
