问大全section9第3题

wkw5336280

The National Transportation Safety Board has recommended the use of fail-safe mechanisms on airliner cargo door latches assuring the doors are properly closed before takeoff and to prevent them from popping open in flight.

(A) assuring the doors are properly closed

(B) for the assurance of proper closing

(C) assuring proper closure

(D) to assure closing the doors properly（E）

(E) to assure that the doors are properly closed

请问动词并列以后，是不是动词后面带的宾语也同样并列呢？

这道题目一个后面加that，另一个后面加provent from感觉不是很并列的

carolhide

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