(来学网)用2%盐酸普鲁卡因进行硬膜外麻醉的适宜剂量是
  • A.
    (来学网)10~15ml
  • B.
    (来学网)25~30ml
  • C.
    (来学网)35~40ml
  • D.
    (来学网)45~50ml
  • E.
    (来学网)55~60ml