During the watch keeping at sea, at appropriate intervals inspection should be made of （）, auxiliary machinery and steering gear spaces by the duty engineer.<br>A:the main propulsion plant<br>B:lifesaving jackets<br>C:lifeboat engine<br>D:state of emergency generator

During the watch keeping at sea, at appropriate intervals inspection should be made of （）, auxiliary machinery and steering gear spaces by the duty engineer.
A:the main propulsion plant
B:lifesaving jackets
C:lifeboat engine
D:state of emergency generator

出自：海船船员证

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