[请益] 一题克漏字

楼主: lask (lask)   2014-07-06 22:38:10
Studies suggested that estrogen treament delays the onset of
Alzheimer's and ________ heart disease.
A. prevents B. prevents from
答案给B 请问有错吗
为什么给B不是A呢?
作者: tatty5566 ( )   2014-07-06 22:41:00
prevent A from B,句意只是预防心脏病所以用prevent就好
楼主: lask (lask)   2014-07-06 22:45:00
懂了 当预防时是Vt....
作者: linkinppt (暱称)   2014-07-06 23:28:00
prevent A from B就是习惯用法了吧! 让A免于B~

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