①CH4(g)+H2O(g)=CO(g)+3H2(g) ΔH1=+206.4 kJ·mol-1
②CO(g)+H2O(g)=CO2(g)+H2(g) ΔH2=-41.0 kJ·mol-1
③CO2(g)+3H2(g)=CH3OH(g)+H2O(g) ΔH3=-49.0 kJ·mol-1
下列说法错误的是( )
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