The melon the Smiths served at dinner would have tasted___if it had been put in the fridge for a lit

题干

The melon the Smiths served at dinner would have tasted___if it had been put in the fridge for a little while.

A：good

B：better

C：best

D：well

上一题下一题 0.0难度选择题更新时间:2018-05-17 09:07:02

B

选项	实验操作与现象	结论
A	用玻璃棒蘸取某溶液进行焰色反应实验，火焰呈黄色	溶液中含有Na⁺
B	向浓度均为0.1mol•L^﹣1的FeCl₃和AlCl₃混合溶液中滴加NaOH溶液，出现红褐色沉淀．	K_spFe（OH）₃＜K_spAl（OH）₃
C	室温下，用pH试纸测得：0.1mol•L^﹣1Na₂CO₃溶液的pH约为11；0.1mol•L^﹣1NaHCO₃溶液的pH约为8．	HCO₃^﹣结合H⁺的能力比CO₃²^﹣的强
D	用Fe³⁺浓度相同的FeCl₃溶液和Fe₂（SO₄）₃溶液，分别清洗做完银镜反应的试管，FeCl₃溶液清洗的干净	存在可逆过程：Fe³⁺+Ag⇌Fe²⁺+Ag⁺，且溶解度AgCl＜Ag₂SO₄

27只	38只	86只

6只	30只	18只