【多选题】下列黄酮类化合物能溶于5%碳酸钠的有( )。
【多选题】下列黄酮类化合物能溶于 5 %碳酸钠的有( )。
【简答题】Dear friends, I am a wolf from the north. I live in the w 小题1: . And I am quite sad. I live in a family group with my parents. We are friendly t 小题2: each other and we look after each other. We can se...
【判断题】Frank is quite familiar with Susan so he goes directly to her.
【简答题】Frank is not quite himself today.
【简答题】Frank is not quite himself today.