單項(xiàng)選擇題

The primary function(s) of an automatic sprinkler system is(are) to（）.

A.extinguish the fire which triggers it
B.limit the spread of fire and control the amount of heat produced
C.protect people in the areas which have sprinkler heads
D.alert the crew to the fire

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單項(xiàng)選擇題

The preferred type of pollution control for oil spills on the water is(are) （）.

A.straw
B.booms
C.skimmers
D.chemical dispersants

單項(xiàng)選擇題

The preferred agent used in fighting a helicopter crash fire is（）.

A.CO₂
B.dry chemical
C.water
D.foam

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The primary function(s) of an automatic sprinkler system is(are) to（）.

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The preferred type of pollution control for oil spills on the water is(are) （）.

The preferred agent used in fighting a helicopter crash fire is（）.