A、CO<sub>2sub> B、H<sub>2sub>O C、H<sub>2sub>O和CO<sub>2sub> D、CH<sub>4sub>和CO<sub>2sub>
A、CO<sub>2sub>和H<sub>2sub> B、CO<sub>2sub>和H<sub>2sub>O C、CO和H<sub>2sub> D、CO和H<sub>2sub>O
A、N<sub>2sub>和CO<sub>2sub> B、N<sub>2sub>和H<sub>2sub>O C、CO<sub>2sub>和H<sub>2sub>O D、CO和H<sub>2sub>O
A、C+O<sub>2sub>→CO<sub>2sub>+Q,C+O<sub>2sub>→CO+Q B、CO<sub>2sub>+C→CO-Q,CO+H<sub>2sub>→CH<sub>4sub>+H<sub>2sub>O+Q. C、C+O<sub>2sub>→CO+Q,C+H<sub>2sub>O→CO+H<sub>2sub>-Q D、CO<sub>2sub>+C→CO-Q,C+H<sub>2sub>O→CO+H<sub>2sub>-Q
A、C+O<sub>2sub>=CO<sub>2sub> B、C+O<sub>2sub>=CO C、CO+H<sub>2sub>O=CO<sub>2sub>+H<sub>2sub> D、C+H<sub>2sub>O=CO+H<sub>2sub>