單項(xiàng)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


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1.單項(xiàng)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

2.單項(xiàng)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