治疗肝肾不足，常与墨旱莲配伍的药物是（）。
A.百合
B.女贞子
C.石斛
D.天冬
E.黄精
参考答案：B
Which of the following theories assumes the main source of business cycle is most likely due to changes in technology and extemal shocks（）
A. Keynesian cycle theory.
B. Real business cycle theory.
C. New classical cycle theory.
瞳孔对光反射中枢位于
A．脊髓B．延髓C．脑桥D．中脑
