單項(xiàng)選擇題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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1.單項(xiàng)選擇題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