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單項(xiàng)選擇題

An example of a grade B product is（）.

A.piperyline
B.motor gasoline
C.kerosene
D.mineral spirits

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單項(xiàng)選擇題

An entry of water，gas，oil，or other formation fluid into the wellbore is called a（）.

A.blowout
B.kick
C.gusher
D.flow

單項(xiàng)選擇題

An engine compartment gasoline fire requires which type of extinguisher?（）

A.Carbon dioxide
B.Dry chemical
C.Foam
D.All of the above

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