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单选题
Two barges are being pushed ahead by a tugboat.Which statement is TRUE concerning lights on the barges（）.
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
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更多 “单选题Two barges are being pushed ahead by a tugboat.Which statement is TRUE concerning lights on the barges（）.A Each vessel should show sidelightsB Each vessel should show at least one white lightC The barges should be lighted as separate unitsD The barges should be lighted as one vessel” 相关考题
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