单项选择题
A.The power-driven tug must maneuver to avoid collision
B.You must maneuver to avoid the tug and tow
C.You must maneuver to avoid collision only if the tug is to leeward and the wind is on your port side
D.Both vessels are required to maneuver to avoid collision
单项选择题 You are on a vessel that cannot comply with the spacing requirement for masthead lights.What is required in this situation（）.
单项选择题 You are Master of a towing vessel engaged in towing three barges astern.The middle barge of the tow would be required to sound which of the following during restricted visibility （）.
单项选择题 You are approaching another vessel and will pass starboard to starboard without danger if no course changes are made.You should（）.