(来学网)正常成人外周红骨髓分布于肱骨与股骨的
  • A.
    (来学网)近端1/2
  • B.
    (来学网)近端1/4~1/3
  • C.
    (来学网)中段1/3
  • D.
    (来学网)远端1/2
  • E.
    (来学网)远端1/4~1/3