题目

下列电离方程式错误的是：                                   (       )A．NaHCO3 =Na+ + H+ + CO32-       B. NaHSO4 = Na+ + H+ +SO42- C. MgCl2 = Mg2+ +2Cl-            D. Ba(OH)2 = Ba2+ +2OH- 答案：AI have many things to do, _______ me. [     ]A. not speak to me  B. not talk to me  C. talk to  D. don't talk to me