单项选择题
A.first B.following control of fire C.following restoration of vital services D.only if a threat exists
Control of fire on a ship should be addressed（）.A.immed...
单项选择题Control of fire on a ship should be addressed（）.
A.immediately after restoring vital services B.immediately C.following control of flooding D.following establishment of fire boundaries
Combustible gas indicators measure the presence of comb...
单项选择题Combustible gas indicators measure the presence of combustible gas as a percentage of the（）.
A.flash point B.upper explosive limit C.lower explosive limit D.fire point
CO2 extinguishes a fire by（）.A.coolingB.smotheringC.che...
单项选择题CO2 extinguishes a fire by（）.
A.cooling B.smothering C.chemical action D.All of the above
