题目

下列反应不可能一步实现的是 A. Na→NaOH              B .Al2O3→Al(OH)3 C. Fe→FeSO4             D .Cu→Cu0 答案：B24、It’s really _____ type I’ve been after, but I’d like to give it _______second thought． A． a; 不填                B． a; the               C． the; a              D． the; the