A.water
B.dry chemical
C.foam
D.CO2
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A.foam and water
B.CO2 and dry chemical
C.dry chemical and water
D.foam and CO2
A.turning it upside down
B.pressing the foam lever
C.squeezing the grip handle
D.opening the hose valve
A.is comfortable
B.is warm
C.is not bleeding
D.has a clear airway
A.wash with salt water
B.wash with sterile mineral oil
C.treat it like frostbite
D.treat it like any burn
A.by more than 5 percent
B.by less than 10 percent
C.to 95 percent
D.to less than 90 percent
最新試題
To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）
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（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
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（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.
When does auxiliary burner of incinerator put into operation? （）Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish