In the voyage, when carrying out abandon ship drill, should be test every time（）.<br>A:the emergency lighting system for muster and abandon ship<br>B:air/oil emergency shut-down<br>C:M-Eemergency operation<br>D:main/auxiliary steering gear changing

In the voyage, when carrying out abandon ship drill, should be test every time（）.
A:the emergency lighting system for muster and abandon ship
B:air/oil emergency shut-down
C:M-Eemergency operation
D:main/auxiliary steering gear changing

出自：海船船员证

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