Who is responsible for ensuring that someone is assigned to close the watertight doors in an emergency?（）<br>A:Maritime Safety Administration<br>B:Master of the vessel<br>C:Chief Engineer<br>D:Chief Mate

Who is responsible for ensuring that someone is assigned to close the watertight doors in an emergency?（）
A:Maritime Safety Administration
B:Master of the vessel
C:Chief Engineer
D:Chief Mate

出自：海船船员证

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