在标准态下，下列电对中还原型的还原性最强的是( )A. E^Theta((MnO)_4^-/(Mn)^2+)=+1.51 (V)B. E^Theta((Cu)^2+/(Cu))=+0.34 (V)C. E^Theta((I)_2/(I)^-)=+0.54 (V)D. E^Theta((Fe)^3+/(Fe)^2+)=+0.77 (V)E. E^Theta((Al)^3+/(Al))=-1.66 (V)

A. $E^{\Theta}(\text{MnO}_4^{-}/\text{Mn}^{2+})=+1.51\ \text{V}$

B. $E^{\Theta}(\text{Cu}^{2+}/\text{Cu})=+0.34\ \text{V}$

C. $E^{\Theta}(\text{I}_2/\text{I}^{-})=+0.54\ \text{V}$

D. $E^{\Theta}(\text{Fe}^{3+}/\text{Fe}^{2+})=+0.77\ \text{V}$

E. $E^{\Theta}(\text{Al}^{3+}/\text{Al})=-1.66\ \text{V}$