(来学网)在细菌的多种化学成分中,一般情况下水分占
  • A.
    (来学网)20%~29%
  • B.
    (来学网)30%~50%
  • C.
    (来学网)50%~70%
  • D.
    (来学网)75%~90%
  • E.
    (来学网)90%~95%