A.12% B.17% C.22% D.27% E.32%
A.皮下浸潤(rùn) B.靜脈注射 C.肌肉注射 D.硬膜外注射 E.神經(jīng)叢血管旁阻滯
A.0.2% B.0.8% C.2% D.2.2% E.2.5%