(来学网)国产超薄镜片的钡火石光学玻璃材料制造的阿贝数是
  • A.
    (来学网)31.8
  • B.
    (来学网)41.6
  • C.
    (来学网)60.5
  • D.
    (来学网)58
  • E.
    (来学网)52.3