(来学网)正常孕妇妊娠足月时羊水量为
  • A.
    (来学网)400~600ml
  • B.
    (来学网)600~800ml
  • C.
    (来学网)800~1000ml
  • D.
    (来学网)1000~1200ml
  • E.
    (来学网)1200~1400ml