prep 2-132 关于比较结构中的倒装

132.
    (31781-!-item-!-188;#058&006523)

A study published in the British Medical Journal showed that women who ate nuts more than five times a week were about one third less likely to suffer from coronary heart disease as those who ate no nuts at all.

(A) as those who ate

(B) as women who ate

(C) as those eating

(D) than women eating

(E) than were those who ate

答案选E

解释中说，为了避免头重脚轻，采用倒装结构将were提前，

不明白在比较结构中，倒装有什么规律吗？请指教。

（貌似碰到过比较结构中，倒装错了的，不知道在哪看到过的）