单项选择题

A vessel reduces speed without backing. The rate that her speed through the water decreases depends primarily on the（）.

A.vessel's horsepower
B.sea state
C.number of propellers
D.vessel's displacement

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单项选择题

A vessel proceeding along the course of a narrow channel shall keep as near to the outer limitof the channel which lies on her starboard side as it is safe and practicable.Which one of the followings does the statement express?（）.

A.A vessel shall proceed near the other vessel on her starboard side on the narrow channel since it is safe and practicable
B.A vessel shall avoid proceeding near the starboard outer limit of a narrow channel as long as it is safe and practicable
C.A vessel shall avoid proceeding along the channel because it is not safe and practicable
D.A vessel shall proceed near the starboard outer limit of a narrow channel to the degree in which it is safe and practicable

单项选择题

A vessel proceeding along the course of a narrow channel or fairway shall keep as near to the （）limit of the channel or fairway which lies on her（）side as is safe and practicable.

A.inner，port
B.inner，starboard
C.outer，port
D.outer，starboard

单项选择题

A vessel proceeding along the bank of a river or channel has the tendency to（）.

A.continue in line with the bank
B.hug the bank
C.sheer away from the bank
D.increase speed