單項(xiàng)選擇題

Oil fires are best extinguished by （）.

A. cutting off the supply of oxygen
B. removing the fuel
C. spraying with water
D. adding oxygen

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單項(xiàng)選擇題

You will extinguish a fire when you remove （）.

A.oxygen
B.carbon dioxide
C.H₂O
D.H₂

單項(xiàng)選擇題

I’m on fire and have dangerous cargo on board. The most urgent assistance (最緊急的援助)in this case would be（） .

A.lifeboat
B.medicine
C.firefighting
D.lifesaving