(来学网)维生素B12在肝脏的储存比例是
  • A.
    (来学网)50%~90%
  • B.
    (来学网)60%~90%
  • C.
    (来学网)40%~80%
  • D.
    (来学网)40%~90%
  • E.
    (来学网)50%~80%