【简答题】
A、CH<sub>4sub>+2S<sub>2sub>→CS<sub>2sub>+H<sub>2sub>S B、CH<sub>4sub>+2S<sub>2sub>→CS<sub>2sub>+2H<sub>2sub>S C、CH<sub>4sub>+S<sub>2sub>→CS<sub>2sub>+2H<sub>2sub> D、CH<sub>4sub>+3S<sub>2sub>→CS<sub>2sub>+4H<sub>2sub>S
A、CH<sub>4sub>+2O<sub>2sub>=2H<sub>2sub>O+CO<sub>2sub> B、2CH<sub>4sub>+3O<sub>2sub>=4H<sub>2sub>O+2CO C、CH<sub>4sub>+O<sub>2sub>=H<sub>2sub>O+CO<sub>2sub> D、CH<sub>4sub>+O<sub>2sub>=H<sub>2sub>O+CO