(来学网)胃蛋白酶作用的最适pH是
  • A.
    (来学网)5~7.5
  • B.
    (来学网)5~9.0
  • C.
    (来学网)1~2.5
  • D.
    (来学网)5~5.5
  • E.
    (来学网)0~8.0