(1)在安装煤气管道施工中要挖一条长450米的沟.前3天挖了270米.照这样计算,剩余部分还需要几天完成?(2)一本书105页,小华3天读了全书的40%.平均每天读多少页?(3) 将一批水泥运往建筑工
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![(1)在安装煤气管道施工中要挖一条长450米的沟.前3天挖了270米.照这样计算,剩余部分还需要几天完成?(2)一本书105页,小华3天读了全书的40%.平均每天读多少页?(3) 将一批水泥运往建筑工](/uploads/image/z/1007790-6-0.jpg?t=%EF%BC%881%EF%BC%89%E5%9C%A8%E5%AE%89%E8%A3%85%E7%85%A4%E6%B0%94%E7%AE%A1%E9%81%93%E6%96%BD%E5%B7%A5%E4%B8%AD%E8%A6%81%E6%8C%96%E4%B8%80%E6%9D%A1%E9%95%BF450%E7%B1%B3%E7%9A%84%E6%B2%9F.%E5%89%8D3%E5%A4%A9%E6%8C%96%E4%BA%86270%E7%B1%B3.%E7%85%A7%E8%BF%99%E6%A0%B7%E8%AE%A1%E7%AE%97%2C%E5%89%A9%E4%BD%99%E9%83%A8%E5%88%86%E8%BF%98%E9%9C%80%E8%A6%81%E5%87%A0%E5%A4%A9%E5%AE%8C%E6%88%90%3F%EF%BC%882%EF%BC%89%E4%B8%80%E6%9C%AC%E4%B9%A6105%E9%A1%B5%2C%E5%B0%8F%E5%8D%8E3%E5%A4%A9%E8%AF%BB%E4%BA%86%E5%85%A8%E4%B9%A6%E7%9A%8440%25.%E5%B9%B3%E5%9D%87%E6%AF%8F%E5%A4%A9%E8%AF%BB%E5%A4%9A%E5%B0%91%E9%A1%B5%3F%EF%BC%883%EF%BC%89+%E5%B0%86%E4%B8%80%E6%89%B9%E6%B0%B4%E6%B3%A5%E8%BF%90%E5%BE%80%E5%BB%BA%E7%AD%91%E5%B7%A5)
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