37.A buoy, marking the fairway in a channel, is painted in black-and-white or red-and-whitevertical
問題詳情
37.A buoy, marking the fairway in a channel, is painted in black-and-white or red-and-whitevertical stripes defines . (A)fairway buoy (B)obstruction buoy (C)special-purpose buoy (D)junction buoy