(来学网)正常精液pH为
  • A.
    (来学网)4.0~5.0
  • B.
    (来学网)5.0~6.2
  • C.
    (来学网)6.2~7.2
  • D.
    (来学网)7.2~7.8
  • E.
    (来学网)7.8~8.0