單項選擇題The master should()necessary precautions to prevent accidents or damage.

A.do
B.take
C.set
D.have


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1.單項選擇題The meaning of slacken her speed is().

A.increase ship's speed
B.slow down ship's speed
C.make up ship's speed
D.fix up shp's speed

2.單項選擇題The most important principle in the cargo stowage is().

A.to avoid the rearrangement of the cargo loaded on board
B.to ensure the safety of the ship and cargo
C.to reject the damaged cargo during loading operation
D.to prevent the spontaneous combustion of the coal and grain

3.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

4.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

5.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