拘传
参考答案:[*]C:\Documents and Settings\Administrator\My Documents\图片\3.jpg
用薄层色谱法对待测组分定性时,主要依据()。
A.斑点的颜色
B.斑点的大小
C.比移值
D.斑点至原点的距离
32. ---Why didn’t you buy that T-shirt?
---I dislike the pattern. ______, the colour didn’t suit me.
A.Besides
B.Otherwise
C.Therefore
D.Instead