乌药的归经是（）
A.肺、肝、脾、肾经
B.肺、脾、肾、膀胱经
C.肺、胃、肝、膀胱经
D.肝、胃、大肠、膀胱经
E.肝、肾、胃、小肠经
参考答案：B
What _____ you _____ from 6:30 to 8:30 yesterday evening? [ ]
A. were; doing
B. was; doing
C. did; do
D. have; done
本影，暗影
