问答题
C25%E8%A1%A8%E7%A4%BA%E6%B7%B7%E5%87%9D%E5%9C%9F%E6%A0%87%E5%87%86%E7%AB%8B%E6%96%B9%E4%BD%93%E6%8A%97%E5%8E%8B%E5%BC%BA%E5%BA%A6%E2%89%A525MPA%E4%B8%94%E2%89%A430MPA%E7%9A%84%E4%BF%9D%E8%AF%81%E7%8E%87%E2%89%A595%%EF%BC%8C%E5%8D%B3%E7%AB%8B%E6%96%B9%E4%BD%93%E6%8A%97%E5%8E%8B%E5%BC%BA%E5%BA%A6%E7%9A%84%E6%A0%87%E5%87%86%E5%80%BC%E4%B8%BA25MPA%E6%98%AF%E5%AF%B9%E8%BF%98%E6%98%AF%E9%94%99
答案:
答案:C25表示的是混凝土的强度等级,即C25混凝土的立方体抗压强度标准值为25MPa。当混凝土的立方体抗压强度在25M...