(来学网)瑞典Elekta γ-刀装置上最大射野直径为
  • A.
    (来学网)4mm
  • B.
    (来学网)24mm
  • C.
    (来学网)50mm
  • D.
    (来学网)12mm
  • E.
    (来学网)18mm
正确答案:
E