(来学网)因骨折固定或牵引而长期卧床的儿童中,高钙血症的发生率可达
  • A.
    (来学网)10%
  • B.
    (来学网)30%
  • C.
    (来学网)50%
  • D.
    (来学网)60%
  • E.
    (来学网)90%