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The person on a ship who is responsible for maintaining the engineering spaces in a clean and sanitary condition is the（）.
A:Master，or person in charge
B:Chief Engineer，or engineer in charge if no chief engineer is required
C:Senior mechanic，or mechanic on duty if no senior mechanic designated
D:Senior electrician，or electrician on duty if no senior electrician designated

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出自：海船船员证

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