單項(xiàng)選擇題

Halon gas will decompose and may form very hazardous toxic fumes when discharged（）.

A.directly on flames
B.at room temperature
C.in an extremely cold climate
D.None of the above

你可能感興趣的試題

First aid treatment for small cuts and open wounds is to（）.

A.lay the patient down and cover the wound when the bleeding stops
B.stop the bleeding，clean，medicate，and cover the wound
C.apply an ice pack to the wound and cover it when the bleeding stops
D.apply a hot towel to purge the wound，then medicate and cover it

單項(xiàng)選擇題

Cargo that gives off fumes that may contaminate other cargo is known as a(n) （）.

A.delicate cargo
B.dirty cargo
C.toxic cargo
D.odorous cargo