單項選擇題A vessel not using a traffic separation scheme shall avoid it by as（）as is practicable.

A.wide a place
B.wide a margin
C.wide enough
D.wide


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1.單項選擇題Two short blasts of the whistle have all of the following meanings except（）.

A.I intend to meet you starboard to starboard
B.I do not intend to hold course and speed
C.I intend to overtake you on your port side
D.I intend to alter my course to port

2.單項選擇題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

3.單項選擇題Under the rules, the term vessel includes（）.

A.non-self-propelled raft
B.seaplanes
C.hovercrafts
D.All of the above

4.單項選擇題I（）rather not shift the rice to hatch No.2.

A.shall
B.should
C.would
D.had to

5.單項選擇題If there’s a fire aboard your vessel, you should first（）.

A.notify the competent authorities
B.sound the alarm
C.have passengers put on life preservers
D.cut off air supply to the fire