题目内容
(请给出正确答案)
[主观题]
The three basic elements necessary for any fire are ()A.heat, gas and flamesB.fuel, heat
The three basic elements necessary for any fire are ()
A.heat, gas and flames
B.fuel, heat and oxygen
C.heat, nitrogen and fuel
提问人:网友luckydog516
发布时间:2022-01-06