你可能感興趣的試題

A.the centerline of a navigable channel
B.the starboard side of a channel
C.a prominent object of navigational interest that has no lateral significance
D.area of a channel where passing another vessel is permitted

A.two towing lights in a vertical line
B.a towing light in a vertical line above the sternlight
C.two towing lights in addition to the sternlight
D.a small white light in lieu of the sternlight