(来学网)角膜上皮细胞层占整个角膜厚度的( )
  • A.
    (来学网)4%
  • B.
    (来学网)5%
  • C.
    (来学网)10%
  • D.
    (来学网)15%
  • E.
    (来学网)20%
正确答案:
C