單項(xiàng)選擇題For cargoes（）grain meals，coal，ventilation is needed to prevent them（）spontaneous combustion.

A.i.e.／of
B.for instance／away
C.for example／off
D.such as／from


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1.單項(xiàng)選擇題Bulk cargo refers to（）.

A.cargo which occupies a large volume of space
B.cargo which requires refrigeration
C.cargo which is very dense
D.homogeneous cargo not enclosed in a container

2.單項(xiàng)選擇題Before loading bulk grain，bilge wells must be covered to（）.

A.add strength to the bilge well strainer
B.permit rapid flow of water to the bilge wells
C.prevent cargo sifting into the bilge wells
D.prevent oil，water，or other liquid from reaching the cargo

3.單項(xiàng)選擇題Bags are usually stowed in between the bulk grain（）.

A.to ventilate the hold
B.to separate the cargo
C.to replace shifting boards
D.to facilitate stowage

4.單項(xiàng)選擇題Atmospheres laden with coal dust or grain dust caused by loading these cargoes（）.

A.require loading operations to be shut down until the atmosphere clears
B.are toxic to human life
C.are subject to spontaneous combustion
D.may be explosive in some concentrations

5.單項(xiàng)選擇題A venetian vent or rice ventilator is used in stowage of which cargo?（）.

A.Bagged cargo
B.Bulk grain
C.Bulk rice
D.Refrigerated goods