(来学网)虹膜小环距离瞳孔为
  • A.
    (来学网)1.0mm
  • B.
    (来学网)2.5mm
  • C.
    (来学网)0.5mm
  • D.
    (来学网)1.5mm
  • E.
    (来学网)2.0mm