气液色谱分离，主要利用各组分在固定相上的（）差异。
A、溶解度
B、吸附能力
C、挥发能力
参考答案：A
用括号中的词填空。
(do does can don't)
1. On Sunday, I ________ watch TV. I must do my homework.
2. ________ her daughter have a nice English name?
3. ________ you spell the word?
4. ________ his grandparents like him?
5. —What ________ your uncle love?
—He loves sports.
"子宫"一词最早见于：（）
A.《易经》
B.《诗经》
C.《山海经》
D.《内经》
E.《神农本草经》
