下列4个反应,表示可燃物燃烧热的热化学方程式的是( )A.C(s)+12O2(g)=CO(g)△H=-110.5KJ/molB.C(s)+O2(g)=CO2(g)△H=-393.5KJ/molC.2H2(g)+O2(g)=2H2O(l)△H=-571.6KJ/molD.H2(g)+12O2(g)=H2O(g)△H=-241.8KJ/mol