(来学网)光学对比度的计算式是
  • A.
    (来学网)D=IgI0/I
  • B.
    (来学网)K=D1-D2
  • C.
    (来学网)K=γ.IgKx
  • D.
    (来学网)S=H/K
  • E.
    (来学网)R=1/2d
正确答案:
B