摘要:4.下列反应不属于置换反应的是 ( ) (A)3Fe + 4H2OFe3O4 + 4H2↑ (B)4NH3 +3O2(纯) 2N2 + 6 H2O (C)2Al +2NaOH+2H2O==2NaAlO2+3H2↑ (D)CuO +CO Cu + CO2
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