题目

有4种混合溶液，分别由等体积0.1mol/L的2种溶液混合而成：①CH3COONa与HCl；②CH3COONa与NaOH；③CH3COONa与NaCl；④CH3COONa与NaHCO3，下列各项排序正确的是( ) A.pH：②＞③＞④＞①                     B.c(CH3COO-)：②＞④＞③＞① C.溶液中c(Na+)：①＞③＞②＞④            D.c(CH3COOH)：①＞④＞③＞②听短文,判断正(T)误(F)(     )1.The Mid-autumn Festival is on September 15th.(     )2.The writer went to a hill with his partners for a picnic.(     )3.They bought food from a shop to eat.(     )4.They ate much food on the hill.(     )5.They enjoyed themselves.