A.5min B.10min C.15min D.20min E.25min
A.T4-10交感神經(jīng)節(jié)前纖維 B.T5-12交感神經(jīng)節(jié)前纖維 C.T5~L1交感神經(jīng)節(jié)前纖維 D.T5~L2交感神經(jīng)節(jié)前纖維 E.T6~L4交感神經(jīng)節(jié)前纖維
A.心動徐緩 B.術前脫水 C.交感神經(jīng)節(jié)前纖維阻滯 D.肌張力下降 E.副交感神經(jīng)阻滯