A. 动力 B. 拉力 C. 推力 D. 电力
A. 正确 B. 错误
A. CO2 does not cool the fire B. cylinders are regulated pressure vessels C02 is not effective on class B fires D. C02 is not effective on class C fire
A. 205 B. 205.140 C. 88 D. 36.88