單項(xiàng)選擇題In a longitudinally-framed ship,the longitudinal frames are held in place and supported by athwartship members called().

A.floors
B.margin plates
C.stringers
D.web frames


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2.單項(xiàng)選擇題I()rather not shift the rice to Hatch No.2.

A.shall
B.should
C.would
D.had to

3.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

4.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

5.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