A.need not show the lights for a vessel engaged in towing,if it is impractical to do so
B.may show the lights for a vessel not under command
C.must show a yellow light above the stern light
D.must show the lights for a vessel towing
第1题
A.Stop fueling
B.Notify the dispatcher
C.Notify the terminal superintendent
D.Determine if your vessel is the source
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