Foam extinguishes a fire by____________.(1.0)
A.shutting off the air supply B.cooling the fuel to below ignition temperature C.dispersing the fuel D.removing the source of ignition正确答案A
Foam extinguishes a fire by____________.(1.0)
A.shutting off the air supply B.cooling the fuel to below ignition temperature C.dispersing the fuel D.removing the source of ignition正确答案A