A continuous sounding of a fog-signal apparatus indicates（）.<br>A:the vessel is in distress<br>B:the vessel has completed loading dangerous cargo<br>C:it is safe to pass<br>D:the vessel is anchored

A continuous sounding of a fog-signal apparatus indicates（）.
A:the vessel is in distress
B:the vessel has completed loading dangerous cargo
C:it is safe to pass
D:the vessel is anchored

出自：海船船员证

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