You are entering an east coast port and see a buoy with a yellow triangle painted on it.This indicates（）.<br>A:you are in the vicinity of the ICW<br>B:the buoy is a special mark<br>C:the buoy is off station<br>D:the buoy designates a sharp turn in the channel

You are entering an east coast port and see a buoy with a yellow triangle painted on it.This indicates（）.
A:you are in the vicinity of the ICW
B:the buoy is a special mark
C:the buoy is off station
D:the buoy designates a sharp turn in the channel

出自：海船船员证

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