[求助]大全435

435.Inuits of the Bering Sea were in isolation from contact with Europeans longer than Aleuts or Inuits of the North Pacific and northern Alaska.

(A) in isolation from contact with Europeans longer than

(B) isolated from contact with Europeans longer than

(C) in isolation from contact with Europeans longer than were

(D) isolated from contact with Europeans longer than were

(E) in isolation and without contacts with Europeans longer than

答案是D,我选的是B。问一下为什么这里要补出were啊。

什么时候补出助动词，什么时候省略呢？我都被整晕了

主要前面有Europeans，省了were就会产生歧义：than后的Aleuts or Inuits 跟前面Inuits和Europeans哪个比。

than后面的应该是和前面的Inuits比。

谢谢jnlvo兄啊。最近老是被比较的省略问题搞得头晕，不知道cd上有讲比较的省略问题的帖子没有？

OG的解释：In A and C, in isolation from contact is wordy and unidiomatic.

我想，were in isolation from和were isolated from是一样的意思，相比来说，后者更简洁。

如果我想比较的意思是：Inuits of the Bering Sea 与Europeans 分离的时间比Inuits of the Bering Sea与Aleuts or Inuits of the North Pacific and northern Alaska分离的时间长，那应该如何表述？请NN指教