Always ensure that the turning gear is（）, even at the quay, the wake from other ships may turn the propeller and thus the engine.<br>A:disengaged<br>B:engaged<br>C:assembled<br>D:disassembled

Always ensure that the turning gear is（）, even at the quay, the wake from other ships may turn the propeller and thus the engine.
A:disengaged
B:engaged
C:assembled
D:disassembled

出自：海船船员证

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