题目

依据下列实验现象，不能得出对应结论的是 （） 实验现象结论 A室温下测0.1 mol·L－1醋酸pHpH≈3.3醋酸是弱酸 B向2 mL 0.1 mol·L－1NaOH溶液中i.滴加几滴同浓度的MgSO4溶液 ii.再滴加几滴同浓度FeCl3溶液i．产生白色沉淀ii.产生红褐色沉淀溶解度：Fe(OH)3＜Mg(OH)2 C常温下，将CO2通入苯酚钠溶液中溶液变浑浊酸性：碳酸＞苯酚 D将少量溴乙烷与NaOH溶液共热，冷却、HNO3酸化后，滴加AgNO3溶液淡黄色沉淀证明含有溴元素 A . A B . B C . C D . DA. filled with B. several C. was ready D. pleasant E. was surprised atI'm on the way home and I see 【1】foreigners visiting our village.Bill's family had a very 【2】 trip during the holiday.His mother came back home with a basket 【3】 apples and oranges.Betty 【4】 how much it had changed.