单项选择题
A vessel shall slacken her speed，stop，or reverse her engines，if necessary，to（）.
A.avoid collision
B.allow more time to assess the situation
C.be stopped in an appropriate distance
D.All of the above
相关考题
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单项选择题
A vessel shall be deemed to be overtaking when she can see at night（）.
A.only the sternlight of the vessel
B.a sidelight and one masthead light of the vessel
C.only a sidelight of the vessel
D.any lights except the masthead lights of the vessel -
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 -
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
