A vessel towing is showing three forward white masthead lights in a vertical line. This means that the length of the（）.<br>A:towing vessel is less than 50 meters<br>B:towing vessel is greater than 50 meters<br>C:tow is less than 200 meters<br>D:tow is greater than 200 meters

A vessel towing is showing three forward white masthead lights in a vertical line. This means that the length of the（）.
A:towing vessel is less than 50 meters
B:towing vessel is greater than 50 meters
C:tow is less than 200 meters
D:tow is greater than 200 meters

出自：海船船员证

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