题目

 Can you _______, please? I feel hot and tired. A. take me some water               B. take me any water C. bring me some water             D. bring me any water     答案：C 向盛有NaHSO4溶液的烧杯中不断滴Ba(OH)2溶液，随着Ba(OH)2溶液的不断滴入， 溶液中产生的沉淀量与pH变化情况正确的是                          (        )        A