题目内容：

25℃、101 kPa下，碳、氢气、甲烷和葡萄糖的燃烧热依次是393.5 kJ/mol、285.8 kJ/mol、890.3 kJ/mol、2800 kJ/mol，则下列热化学方程式正确的是（     ）

A. C(s)+ O2(g)＝CO(g)                    ΔH =-393.5 kJ/mol

B. 2H2(g)+O2(g)＝2H2O(l)                  ΔH = +571.6 kJ/mol

C. CH4(g)+2O2(g)＝CO2(g)+2H2O(g)          ΔH =-890.3 kJ/mol

D. C6H12O6(s) +6O2(g)＝6CO2(g)+6H2O(l)     ΔH =-2800 kJ/mol