單項(xiàng)選擇題

A single towing light will be carried above a vessel’s sternlight（）.

A.only if she is towing astern
B.only if the tow exceeds 200 meters
C.at any time when towing
D.if the towing vessel is part of a composite unit

你可能感興趣的試題

單項(xiàng)選擇題

A safe water daymark has what shape? （）

A.Triangular
B.Diamond
C.Circular
D.Octagonal

單項(xiàng)選擇題

A red triangular daymark marks（）.

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