(来学网)行环甲膜穿刺注药,常用的利多卡因浓度是
  • A.
    (来学网)0.5%
  • B.
    (来学网)0.8%
  • C.
    (来学网)1.5%
  • D.
    (来学网)2%
  • E.
    (来学网)1%