(来学网)体内法标记红细胞的标记率一般为
  • A.
    (来学网)20%~40%
  • B.
    (来学网)40%~60%
  • C.
    (来学网)60%~90%
  • D.
    (来学网)90%~95%
  • E.
    (来学网)95%~98%