单项选择题
A.瘀血阻络 B.肝肾亏虚 C.气阴两虚 D.外感寒湿 E.中气下陷
A.5° B.10° C.15° D.5°~10° E.10°~15°
A.5° B.10° C.15° D.20° E.30°