(来学网)焦度计零位示值误差为-0.12D,现放了镜片的示值为+1.62D,实际镜度应为
  • A.
    (来学网)+1.62D
  • B.
    (来学网)+1.75D
  • C.
    (来学网)+1.50D
  • D.
    (来学网)+1.25D
正确答案:
B
答案解析:
1.62+0.12=1.74。