一个城镇有三个主要企业:煤矿、电厂和铁路作为它的经济系统. 生产价值1元的煤(产品1),需消耗0.3元的电费(中间产品2)和0.2元的运输费(中间产品3); 生产价值1元的电(产品2),需
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![一个城镇有三个主要企业:煤矿、电厂和铁路作为它的经济系统. 生产价值1元的煤(产品1),需消耗0.3元的电费(中间产品2)和0.2元的运输费(中间产品3); 生产价值1元的电(产品2),需](/uploads/image/z/1991582-62-2.jpg?t=%E4%B8%80%E4%B8%AA%E5%9F%8E%E9%95%87%E6%9C%89%E4%B8%89%E4%B8%AA%E4%B8%BB%E8%A6%81%E4%BC%81%E4%B8%9A%EF%BC%9A%E7%85%A4%E7%9F%BF%E3%80%81%E7%94%B5%E5%8E%82%E5%92%8C%E9%93%81%E8%B7%AF%E4%BD%9C%E4%B8%BA%E5%AE%83%E7%9A%84%E7%BB%8F%E6%B5%8E%E7%B3%BB%E7%BB%9F.%26%2361548%3B+%E7%94%9F%E4%BA%A7%E4%BB%B7%E5%80%BC1%E5%85%83%E7%9A%84%E7%85%A4%28%E4%BA%A7%E5%93%811%29%2C%E9%9C%80%E6%B6%88%E8%80%970.3%E5%85%83%E7%9A%84%E7%94%B5%E8%B4%B9%28%E4%B8%AD%E9%97%B4%E4%BA%A7%E5%93%812%29%E5%92%8C0.2%E5%85%83%E7%9A%84%E8%BF%90%E8%BE%93%E8%B4%B9%28%E4%B8%AD%E9%97%B4%E4%BA%A7%E5%93%813%29%EF%BC%9B%26%2361548%3B+%E7%94%9F%E4%BA%A7%E4%BB%B7%E5%80%BC1%E5%85%83%E7%9A%84%E7%94%B5%28%E4%BA%A7%E5%93%812%29%2C%E9%9C%80)
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