求问prep一道题

lisaxiwm

Stock levels for domestic crude oil are far lower than in past years, leaving domestic oil prices
vulnerable to any hints of oil supplies being disrupted in the Middle East or to any unexpected consumer
demand growth possibly prompted by colder-than-normal temperatures.

(A) leaving domestic oil prices vulnerable to any hints of oil supplies being disrupted in the Middle East or
to any unexpected consumer demand growth possibly
(B) leaving domestic oil prices vulnerable to any hints of oil supply disruptions in the Middle East or any unexpected growth in consumer demand that might be
(C) leaving domestic oil prices vulnerable to any hints of oil supplies that are disrupted in the Middle East or to any unexpected growth in consumer demand as was possibly
(D) resulting in the fact that domestic oil prices are vulnerable to any hints of oil supplies being disrupted in the Middle East or to any unexpected consumer demand growth possibly
(E) resulting in the fact of domestic oil prices that are vulnerable to any hints of oil supply disruptions in the
Middle East or to any unexpected growth in consumer demand that might be


Ans B

请问什么情况下连词（这里是or）后面留着介词（如C） 什么时候可以省略（如答案B）？
现在好糊涂 连词连接的部分究竟什么是可以省略的什么又一定要补齐从哪里找对称><

求开导求启发。。

charlenelee

og13上 在the combination of A & B和the combination of A & of B这两者里更倾向于前者
但貌似og12里又有 a lowering of interest rates and of fears这种正确选项

我觉得这道题这个平行不是破题点 c的逻辑意思上感觉有点不大对

DeliciaAn

charlenelee 发表于 2012-11-13 21:40
og13上 在the combination of A &amp; B和the combination of A &amp; of B这两者里更倾向于前者但貌似og12里又有 a ...

我顶下楼上的。为毛线，楼主都不回复聂。。。