(来学网)硬膜外分娩镇痛时,布比卡因常用浓度为
  • A.
    (来学网)0.10%
  • B.
    (来学网)0.25%
  • C.
    (来学网)0.38%
  • D.
    (来学网)0.50%
  • E.
    (来学网)0.75%