單項選擇題Certain dangerous goods are required “to be stowed in a mechanically ventilated space”. When such goods are carried in a closed Ro/Ro cargo space or a special category space,this space should().

A.be mechanically operated
B.be temperature controlled
C.be mechanically ventilated
D.not allow to run its refrigeration or heating equipment


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1.單項選擇題Certain cargoes must be segregated because of their().

A.inherent characteristics
B.weight
C.destination
D.danger to humans

4.單項選擇題Calcium carbide and acetone are counteractive()nature.

A.by
B.in
C.from
D.with

5.單項選擇題At sea,on what occasion would you display two red lights at night or two black balls during the day?().

A.When vessel is on fire
B.When vessel is not under command
C.When vessel is carrying the dangerous cargoes
D.When vessel is restricted in her ability to maneuver