During the day，a vessel with a tow over 200 meters in length will show（）.<br>A:a black ball<br>B:a diamond shape<br>C:two cones，apexes together<br>D:one cone，apex upward

During the day，a vessel with a tow over 200 meters in length will show（）.
A:a black ball
B:a diamond shape
C:two cones，apexes together
D:one cone，apex upward

出自：海船船员证

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