A-A+
Two barges are being pushed ahead by a tugboat.Which statement is TRUE concerning lights o..
问题详情
A.Each vessel should show sidelights
B.Each vessel should show at least one white light
C.The barges should be lighted as separate units
D.The barges should be lighted as one vessel
请帮忙给出正确答案和分析，谢谢！
