用绳子量井,把绳子3折来量,井外余4米,把绳子4折来量,井外余1米,井深和绳子各多少米?:
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![用绳子量井,把绳子3折来量,井外余4米,把绳子4折来量,井外余1米,井深和绳子各多少米?:](/uploads/image/z/5956334-62-4.jpg?t=%E7%94%A8%E7%BB%B3%E5%AD%90%E9%87%8F%E4%BA%95%2C%E6%8A%8A%E7%BB%B3%E5%AD%903%E6%8A%98%E6%9D%A5%E9%87%8F%2C%E4%BA%95%E5%A4%96%E4%BD%994%E7%B1%B3%2C%E6%8A%8A%E7%BB%B3%E5%AD%904%E6%8A%98%E6%9D%A5%E9%87%8F%2C%E4%BA%95%E5%A4%96%E4%BD%991%E7%B1%B3%2C%E4%BA%95%E6%B7%B1%E5%92%8C%E7%BB%B3%E5%AD%90%E5%90%84%E5%A4%9A%E5%B0%91%E7%B1%B3%3F%3A)
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