(来学网)血浆占体重的比例是
  • A.
    (来学网)3%~4%
  • B.
    (来学网)4%~5%
  • C.
    (来学网)5%~6%
  • D.
    (来学网)6%~7%
  • E.
    (来学网)7%~8%
正确答案:
B