(来学网)水分占正常关节软骨总重量的
  • A.
    (来学网)5%~8%
  • B.
    (来学网)15%~18%
  • C.
    (来学网)18%~20%
  • D.
    (来学网)65%~80%
  • E.
    (来学网)90%