单选题Always ensure that the turning gear is（）, even at the quay, the wake from other ships may turn the propeller and thus the engine.AdisengagedBengagedCassembledDdisassembled
单选题
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
参考解析
解析：
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