(来学网)模糊的阈值为0.2mm,焦点尺寸为2.0mm允许放大率为
  • A.
    (来学网)1.1
  • B.
    (来学网)1.2
  • C.
    (来学网)1.33
  • D.
    (来学网)1.4
  • E.
    (来学网)1.15