When the dock is refilled with water after docking repair, the first work which should be done by engineers is （）<br>A:igniting boiler<br>B:releasing air in sea water system<br>C:starting generator<br>D:cut off shore power

When the dock is refilled with water after docking repair, the first work which should be done by engineers is （）
A:igniting boiler
B:releasing air in sea water system
C:starting generator
D:cut off shore power

出自：海船船员证

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