(来学网)肠外营养液在PVC袋中于25℃放置30天,蛋氨酸浓度可下降
  • A.
    (来学网)10.2%
  • B.
    (来学网)15.2%
  • C.
    (来学网)18.5%
  • D.
    (来学网)20.8%
  • E.
    (来学网)18.9%