單項選擇題The fire of sodium is classified as() fire.

A.Class A
B.Class B
C.Class C
D.Class D


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3.單項選擇題There is a danger of the starting current that the windings are burnt out()

A.to increase
B.to be so increased
C.increased
D.being so increased

4.單項選擇題I find ()

A.it difficult for them to finish the job in time
B.difficult for them to finish the job in time
C.they have much difficulty to finish the job in time
D.that difficult for them to finish the job in time

5.單項選擇題The pollution prevention regulations do not apply to the transfer or discharge of ()

A.bunker fuel for use aboard ship
B.lubricating oil for use aboard ship
C.coconut oil carried in tank vessels
D.oily water from a ships bilges