The oil pressure and flow from each bearings can be checked when（）<br>A:the lubricating pumps are stopped and the access doors are opened<br>B:the lubricating pumps are running and the access doors are opened<br>C:the engine is running and the access doors are closed<br>D:the engine is stopped and the access doors are closed

The oil pressure and flow from each bearings can be checked when（）
A:the lubricating pumps are stopped and the access doors are opened
B:the lubricating pumps are running and the access doors are opened
C:the engine is running and the access doors are closed
D:the engine is stopped and the access doors are closed

出自：海船船员证

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