A.與P波方向相反,時(shí)限是0.05~0.15s
B.與QRS波群主波方向相反,時(shí)限是0.05~0.20s
C.與S波方向一致,時(shí)限是0.10~0.15s
D.與R波方向一致,時(shí)限是0.10~0.20s
E.與QRS波群主波方向一致,時(shí)限是0.05~0.25s
A.S波終末至T波開(kāi)始
B.J波終末至T波終末
C.S波開(kāi)始至T波開(kāi)始
D.S波開(kāi)始至T波終末
E.S波終末至T波終末