(来学网)子宫输卵管造影常用复方泛影葡胺的浓度是
  • A.
    (来学网)20%
  • B.
    (来学网)30%
  • C.
    (来学网)40%
  • D.
    (来学网)50%
  • E.
    (来学网)60%