求助：大全238题

Christine2099

987-238
Dental caries and gingivitis can be exacerbated not only by the foods patients eat but also by when the patients eat them.
(A) not only by the foods patients eat but also by when the patients eat them
(B) by not only the foods patients eat but also by when the patients eat them
(C) not only by the foods patients eat but also by time when the foods are eaten
(D) by not only the foods that are eaten by patients but also by the times the foods are eaten
(E) not only by what patients eat but also by when they eat it

答案是E
看以前的帖很多人疑惑A和E的区别，我觉得A里面not parallel还是比较清楚地（the foods和when不parallel）
我选了C，有没有NN可以告诉我为什么by time when the foods are eaten不对？by time是有些些怪，如果是by the time感觉好一些吗？

Christine2099

自己顶~~

samt2w

awkward and wordy

Adeline1123

最后面的那个it 指代的是什么呢？？

我爱SAAB

E 最后一个it没有指代
C按照出题者通常的想法就是2楼说的awkward and wordy