单项选择题
Vessel underway means that a vessel is（）.
A.on the way
B.at anchor
C.made fast to a terminal
D.moving against water
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相关考题
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单项选择题
Vessel constrained by her draught is（）.
A.a non-power driven vessel
B.a sailing vessel
C.a power driven vessel
D.a power driven vessel or a non-power driven vessel -
单项选择题
Underway vessels shall at all time maintain a proper look-out（）.
A.by sight and hearing only
B.by all available means besides sight and hearing
C.by all available means except sight and hearing
D.by none of above means -
单项选择题
Under International Rules（）.
A.all vessels must carry an after range light
B.vessels less than 50 meters in length need not carry an after range light
C.vessels stopped dead in the water should turn off their range lights
D.vessels over 20 meters in length must carry both range lights from sunset to sunrise
