单项选择题Securing cargo by running timbers from an upper support down to the cargo,either vertically or at an angle,is called().

A.braces
B.dunnage
C.shores
D.toms


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1.单项选择题Roll-on/roll-off ships are equipped with().

A.cargo elevators
B.conveyor belts
C.ramps
D.derricks and winches for cargo handling

3.单项选择题Please stow the drums()ends.

A.at
B.in
C.on
D.by

4.单项选择题Please choke up the drums to prevent().

A.moving
B.movement
C.from the movement
D.them from moving

9.单项选择题Hoses used for cargo transfer operations must be tested abdinspected at specified intervals by ().

A.a representative of the Captain of the Port
B.the operator of the vessel or facility
C.a representative of the National Cargo Bureau
D.a representative of the American Bureau of Shipping

10.单项选择题Filler cargo refers to().

A.durable packages
B.small pieces
C.the cargo in which the voids appear
D.the cargo suitable for stowage in void spaces