單項選擇題The necessity of the segregation of cargoes is determined by（）.

A.experience from practice
B.various types of cargoes
C.different types of ships
D.personal abilities


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1.單項選擇題The officer of the watch should（）comply with the collision rules.

A.some times
B.often
C.at all times
D.seldom

2.單項選擇題The phrase when built in the certificate of vessel’s nationality definitely means（）.

A.when was your vessel built
B.at what time is your vessel building
C.when is your vessel built
D.at what time you built your vessel

3.單項選擇題The port in which crew or passengers go on board the ship is called（）.

A.port of call
B.port of embarkation
C.port of destination
D.port of disembarkation

4.單項選擇題The principal purpose of adjustment of the magnetic compass is to eliminate（）as far as possible.

A.variation
B.compass error
C.deviation
D.earth's magnetic force

5.單項選擇題The routing system which aimed at reducing the risk of casualties is called as（）.

A.traffic separation schemes
B.recommended tracks
C.precautionary areas
D.inshore traffic zones