Your vessel is crossing a narrow channel.A vessel to port is within the channel and crossing your course.She is showing a black cylinder.What is your responsibility?（）<br>A:hold your course and speed<br>B:sound the danger signal<br>C:begin an exchange of passing signals<br>D:do not cross the channel if you might impede the other vessel

Your vessel is crossing a narrow channel.A vessel to port is within the channel and crossing your course.She is showing a black cylinder.What is your responsibility?（）
A:hold your course and speed
B:sound the danger signal
C:begin an exchange of passing signals
D:do not cross the channel if you might impede the other vessel

出自：海船船员证

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