(来学网)常规静脉肾盂造影对比剂用量是
  • A.
    (来学网)1~2ml
  • B.
    (来学网)3~5ml
  • C.
    (来学网)5~7ml
  • D.
    (来学网)20~40ml
  • E.
    (来学网)80~100ml