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

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

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

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

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