(来学网)无论哪种混凝土中掺引气剂或引气减水剂,其掺量都十分微小,一般为水泥用量的()。
  • A.
    (来学网)0.5/10000~1.5/10000
  • B.
    (来学网)0.5/1000~1.0/1000
  • C.
    (来学网)0.5/1000~1.5/10000
  • D.
    (来学网)0.5/1000~1.5/1000