(来学网)国际放射界公认的人眼模糊阈值是
  • A.
    (来学网)0.2mm
  • B.
    (来学网)0.4mm
  • C.
    (来学网)0.6mm
  • D.
    (来学网)0.8mm
  • E.
    (来学网)1.0mm