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

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

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

A.dark red with a steady flow
B.bright red with a steady flow
C.bright red and in spurts
D.dark red and in spurts