单项选择题
A.6% B.8% C.10% D.12%
The fire of burning paper is classified as()fire.A.Clas...
单项选择题The fire of burning paper is classified as()fire.
A.Class A B.Class B C.Class C D.Class D
The fire of electrical equipment is classified as()fire...
单项选择题The fire of electrical equipment is classified as()fire.
A.class A B.Class B C.Class C D.Class D
The fire of fuel oil is classified as() fire.A.Class AB...
单项选择题The fire of fuel oil is classified as() fire.