(来学网)白斑癌变率为
  • A.
    (来学网)20%
  • B.
    (来学网)3%~5%
  • C.
    (来学网)1%
  • D.
    (来学网)10%~12%
  • E.
    (来学网)0.1%
正确答案:
B