The emergency bilge suction or bilge _____ is used to prevent flooding of the ship.A.injec

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The emergency bilge suction or bilge _____ is used to prevent flooding of the ship.

A.injection valve

B.relief valve

C.discharge valve

D.inlet filter

请帮忙给出正确答案和分析,谢谢!

热搜:a是b的充分条件,b是a的必要条件吗