(来学网)皮肤的含水量可占人体水分的
  • A.
    (来学网)18%~20%
  • B.
    (来学网)10%~12%
  • C.
    (来学网)12%~15%
  • D.
    (来学网)20%~25%
  • E.
    (来学网)7%~8%
正确答案:
A