(来学网)骨巨细胞瘤在临床上有良恶性之分,其良性比率是
  • A.
    (来学网)10%
  • B.
    (来学网)30%
  • C.
    (来学网)50%
  • D.
    (来学网)70%
  • E.
    (来学网)90%