问题
单项选择题
()as the chemical extinguisher agent, should be used for a an electric fire.
A.Dry chemical or foam
B.Foam or soda acid
C.carbon dioxide or foam
D.carbon dioxide or dry chemical
答案
参考答案:D
()as the chemical extinguisher agent, should be used for a an electric fire.
A.Dry chemical or foam
B.Foam or soda acid
C.carbon dioxide or foam
D.carbon dioxide or dry chemical
参考答案:D