(来学网)同龄小儿体重增长个体差异波动范围是 ( )
  • A.
    (来学网)±3%
  • B.
    (来学网)±5%
  • C.
    (来学网)±10%
  • D.
    (来学网)±15%
  • E.
    (来学网)±20%