单项选择题

A towing light is（）.

A.shown below the stern light
B.white in color
C.displayed at the masthead
D.a yellow light having the same characteristics as the stern light

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单项选择题

A.shown at the bow
B.white in color
C.shown in addition to the stern light
D.an all-round light

单项选择题

A.tug's engineroom or the bow
B.pilot house or aft steering station
C.forecastle
D.towing bitts by reaching over and releasing a lever

单项选择题

A.on course
B.headed fair
C.holding on
D.in shape