选择题:This overcoat cost ________. What.s more, they are

题目内容:
This overcoat cost ________. What.s more, they are _________small for me.
A. very much; very B. too much; much too
C. much too; too much D. very much; too much
参考答案:

已知0.05mol/L一元弱酸HA溶液的pH =3.50,那么等浓度的一元弱碱NaA溶液的pH是(B

已知0.05mol/L一元弱酸HA溶液的pH =3.50,那么等浓度的一元弱碱NaA溶液的pH是(B)

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