确定归经学说的理论基础是（）
A.阴阳学说
B.脏腑经络理论
C.药性理论
D.药味理论
E.五行学说
参考答案：B
_____ I got to the cinema, the film had already been on. [ ]
A. From the time
B. In the time
C. By the time
统计工作过程分为哪几个阶段？
