看图回答问题如图,A,B两个村子在河CD的同侧,A,B两村到河的距离分别为AC=1千米,BD=3千米,CD=3千米,现在河边CD上建一水厂向A·B两村输送自来水,铺设水管的费用为20000元/千米,请你在CD选择水厂的
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![看图回答问题如图,A,B两个村子在河CD的同侧,A,B两村到河的距离分别为AC=1千米,BD=3千米,CD=3千米,现在河边CD上建一水厂向A·B两村输送自来水,铺设水管的费用为20000元/千米,请你在CD选择水厂的](/uploads/image/z/8307193-49-3.jpg?t=%E7%9C%8B%E5%9B%BE%E5%9B%9E%E7%AD%94%E9%97%AE%E9%A2%98%E5%A6%82%E5%9B%BE%2CA%2CB%E4%B8%A4%E4%B8%AA%E6%9D%91%E5%AD%90%E5%9C%A8%E6%B2%B3CD%E7%9A%84%E5%90%8C%E4%BE%A7%2CA%2CB%E4%B8%A4%E6%9D%91%E5%88%B0%E6%B2%B3%E7%9A%84%E8%B7%9D%E7%A6%BB%E5%88%86%E5%88%AB%E4%B8%BAAC%3D1%E5%8D%83%E7%B1%B3%2CBD%3D3%E5%8D%83%E7%B1%B3%2CCD%3D3%E5%8D%83%E7%B1%B3%2C%E7%8E%B0%E5%9C%A8%E6%B2%B3%E8%BE%B9CD%E4%B8%8A%E5%BB%BA%E4%B8%80%E6%B0%B4%E5%8E%82%E5%90%91A%C2%B7B%E4%B8%A4%E6%9D%91%E8%BE%93%E9%80%81%E8%87%AA%E6%9D%A5%E6%B0%B4%2C%E9%93%BA%E8%AE%BE%E6%B0%B4%E7%AE%A1%E7%9A%84%E8%B4%B9%E7%94%A8%E4%B8%BA20000%E5%85%83%2F%E5%8D%83%E7%B1%B3%2C%E8%AF%B7%E4%BD%A0%E5%9C%A8CD%E9%80%89%E6%8B%A9%E6%B0%B4%E5%8E%82%E7%9A%84)
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