A power-driven vessel shall have her engine ready for（）when the visibility is restricted.<br>A:immediate stopping<br>B:immediate maneuvering<br>C:immediate anchoring<br>D:immediate going astern

A power-driven vessel shall have her engine ready for（）when the visibility is restricted.
A:immediate stopping
B:immediate maneuvering
C:immediate anchoring
D:immediate going astern

出自：海船船员证

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