A.10 B.1 C.16 D.0
A.反應(yīng)熱 B.反應(yīng)速率 C.反應(yīng)時(shí)間 D.反應(yīng)熱和反應(yīng)速率
A.面粉 B.鐵屑 C.石粉 D.布料粉末