问题
单项选择题
Never（）the lifeboat or lifecraft disengaging hocks or hydrostatic release gears because it can cause them to fail to function.
A.oil
B.rig
C.release
D.paint
答案
参考答案：D
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Never（）the lifeboat or lifecraft disengaging hocks or hydrostatic release gears because it can cause them to fail to function.
A.oil
B.rig
C.release
D.paint
参考答案：D