(来学网)正常成人血量占体重的百分比是
  • A.
    (来学网)4%~5%
  • B.
    (来学网)5%~6%
  • C.
    (来学网)6%~7%
  • D.
    (来学网)7%~8%
  • E.
    (来学网)8%~9%