A vessel not under command shall display（）.<br>A:two red lights at night and two black balls during daylight<br>B:two red lights at night and three black balls during daylight<br>C:three red lights at night and two black balls during daylight<br>D:three red lights at night and three black balls during daylight

A vessel not under command shall display（）.
A:two red lights at night and two black balls during daylight
B:two red lights at night and three black balls during daylight
C:three red lights at night and two black balls during daylight
D:three red lights at night and three black balls during daylight

出自：海船船员证

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