(来学网)5岁的儿童用药剂量为成人的
  • A.
    (来学网)1/5-1/4
  • B.
    (来学网)1/4~1/3
  • C.
    (来学网)1/3-2/5
  • D.
    (来学网)2/5-1/2
  • E.
    (来学网)1/2~3/5