单项选择题

Risk of collision is considered to exist if（）.

A.four vessels are nearby
B.a vessel has a steady bearing at a constant range
C.there is any doubt that a risk of collision exists
D.a special circumstance situation is apparent

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单项选择题

Power-driven vessels must keep out of the way of sailing vessels except（）.

A.in a crossing situation
B.when they are making more speed than the power-driven vessel
C.when the sailing vessel is overtaking
D.on the Inland Waters of the United States

单项选择题

On open waters，a vessel fishing is in a crossing situation with a vessel sailing located on the fishing vessel’s starboard side. Which vessel is the stand-on vessel?（）.

A.The fishing vessel because it is to port of the sailing vessel
B.The fishing vessel because it is fishing
C.The sailing vessel because it is to starboard of the fishing vessel
D.The sailing vessel because it is sailing

单项选择题

On open waters，a power-driven vessel shall keep out of the way of a（）.

A.vessel on her port side that is crossing her course
B.vessel that is overtaking her
C.seaplane on the water
D.sailing vessel