(来学网)正常成年男性的血细胞在血液中所占的容积百分比是
  • A.
    (来学网)20%~30%
  • B.
    (来学网)30%~40%
  • C.
    (来学网)40%~50%
  • D.
    (来学网)60%~65%
  • E.
    (来学网)65%~70%