单项选择题
A.You are the stand-on vessel B.Risk of collision exists C.A special circumstances situation exists D.The other vessel is dead in the water
You see a vessel displaying three lights in a vertical ...
单项选择题You see a vessel displaying three lights in a vertical line.The highest and lowest lights are red and the middle light is white.She is also showing a white light at the stern，which is lower than the forward light.It could be a（）.
A.Survey vessel B.Vessel not under command C.Vessel aground D.Pilot vessel with port side to you
You see a vessel carrying a black diamond which indicat...
单项选择题You see a vessel carrying a black diamond which indicates a（）.
A.vessel towing astern B.barge pushed ahead C.vessel towing astern only when the length of her tow exceeds 200 meters D.this signal does not exist in international waters
You hear the fog signal of another vessel forward of yo...
单项选择题You hear the fog signal of another vessel forward of your beam.Risk of collision may exist.You MUST（）.
A.Reduce speed to bare steerageway B.Stop your engines C.Begin a radar plot D.All of the above
