【名词&注释】
活血化瘀、《金匮要略》(synopsis of the golden chamber)、静脉曲张(varicose veins)、急性胃黏膜损伤(acute gastric mucosal damage)、补肝肾(nourishing liver and kidney)、强筋骨(strengthen muscles and bones)、性溃疡(venereal ulcer)
[单选题]下列哪一项不是牛膝的功效
A. 补肝肾、强筋骨(strengthen muscles and bones)
B. 活血通经
C. 引血下行
D. 祛风湿
E. 利水通淋