(来学网)为减轻化疗后口腔溃疡患者的疼痛,使用丁卡因的浓度为
  • A.
    (来学网)0.01%
  • B.
    (来学网)0.02%
  • C.
    (来学网)0.03%
  • D.
    (来学网)0.04%
  • E.
    (来学网)0.05%