单项选择题
A.a red light over a white light B.a white light over a red light C.a green light over a white light D.two red lights in a vertical line
A vessel engaged in mine clearance operations is called...
单项选择题A vessel engaged in mine clearance operations is called（）.
A.a vessel restricted in her ability to maneuver B.a vessel not under command C.a vessel constrained by her draught D.a vessel not under way
A vessel engaged in fishing shall keep out of the way o...
单项选择题A vessel engaged in fishing shall keep out of the way of a vessel（）.
A.under sail B.restricted in her ability to maneuver C.crossing a channel D.All of the above
A vessel engaged in fishing must display a light in the...
单项选择题A vessel engaged in fishing must display a light in the direction of any gear that extends outward more than 150 meters. The color of this light is（）.
A.white B.green C.red D.yellow
