(来学网)凸透镜的焦距为0.25m,则其可矫正的屈光不正度数为
  • A.
    (来学网)-4.00D
  • B.
    (来学网)+25.00D
  • C.
    (来学网)-2.50D
  • D.
    (来学网)+2.50D
  • E.
    (来学网)+4.00D