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  • 题目: 单选
    普通硅酸盐水泥,在进行强度检验时,其3天和28天的抗压强度应不小于()

      A . 17.0MPa,42.5MPa
      B . 22.0MPa,42.5MPa
      C . 23.0MPa,42.5MPa
      D . 27.0MPa,52.5MPa

    答案: <查看本题扣1积分>

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