The velocity of the current in large coastal harbors is（）.<br>A:predicted in Tidal Current Tables<br>B:unpredictable<br>C:generally constant<br>D:generally too weak to be of concern

The velocity of the current in large coastal harbors is（）.
A:predicted in Tidal Current Tables
B:unpredictable
C:generally constant
D:generally too weak to be of concern

出自：海船船员证

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