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
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相关考题
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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 -
单项选择题
A power-driven vessel not under command at night must show her sidelights when（）.
A.making headway
B.making no headway
C.moored to a buoy
D.at anchor -
单项选择题
A power-driven fishing vessel is underway on the high seas and is not engaged in fishing. Which of the following factors determines what lights she will show?（）.
A.Whether she is normally a fishing or a trawling vessel
B.Her gross tonnage
C.Her length
D.The type of gear she carries
