【名词&注释】
补中益气汤、不同点(different grounds)、玉屏风散(modified jade screen powder)、川牛膝、补肝肾(nourishing liver and kidney)、强筋骨(strengthen muscles and bones)
[单选题]川牛膝和怀牛膝功效的主要不同点是
A. 川牛膝偏清上部火热,怀牛膝偏清下部湿热
B. 川牛膝偏补肝肾(nourishing liver and kidney),怀牛膝偏祛风湿
C. 川牛膝偏活血通经,怀牛膝偏利尿通淋
D. 川牛膝偏强腰膝,怀牛膝偏活血通经
E. 川牛膝活血通经力强,怀牛膝长于补肝肾(nourishing liver and kidney),强筋骨(strengthen muscles and bones)