单项选择题
A.two towing lights in a vertical line B.a towing light in a vertical line above the sternlight C.two towing lights in addition to the sternlight D.a small white light in lieu of the sternlight
A power-driven vessel underway shall keep out of the wa...
单项选择题A power-driven vessel underway shall keep out of the way of（）.
A.a vessel restricted in her ability to maneuver B.a vessel under command C.a passenger ship D.a seaplane on the water
A power-driven vessel towing another vessel astern (tow...
单项选择题A power-driven vessel towing another vessel astern (tow less than 200 meters) shall show （）.
A.three masthead lights in a vertical line instead of either the forward or after masthead light B.two masthead lights in a vertical line instead of either the forward or after masthead lights C.two towing lights in a vertical line at the stern D.a small white light aft of the funnel
A power-driven vessel shall have her engine ready for（）...
单项选择题A power-driven vessel shall have her engine ready for（）when the visibility is restricted.
A.immediately stop B.immediately maneuvering C.immediately anchoring D.immediately going astern
