“黄袍加身”的典故与哪一位皇帝有关?( )
A:隋文帝
B:唐玄宗
C:唐太宗
D:宋太祖
⑴The man is strong. ____
⑵Vegetables are good for you.____
⑶I like healthy food.____
⑷I always have breakfast.____
⑸I have breakfast at about 7:00 in the morning.____
A. B. C. D. E.
现有淀粉溶液、蛋清、葡萄糖溶液,区别它们时,下列试剂和对应现象依次是( )
试剂:①新制Cu(OH)2 ②碘水 ③浓硝酸
现象:a.变蓝色 b.红色沉淀 c.变黄色.