A.2~4L/minB.4~6L/minC.6~8L/minD.8~10L/min
A.臀大肌B.前臂掌側(cè)C.腹部D.股外側(cè)肌
A.進(jìn)行藥物過(guò)敏試驗(yàn)B.預(yù)防接種C.局部麻醉的起始步驟D.有回血方可注射