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?8506.The purpose of the dump valve in a pressurized aircraft is to relieve

发布于 2021-02-18 22:11:10

【单选题】
A ?all positive pressure from the cabin.
B a negative pressure differential.
C pressure in excess of the maximum differential.

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隔壁老樊 2023-02-18

一份耕耘，一份收获，付出就有回报永不遭遇过失败，因我所碰到的都是暂时的挫折。

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