第一道:甲数与乙数的比是20的4/5,甲数是多少?第二道:用一根长24分米的铁丝做一个长方体框架,使长.宽.高的比是3:2:1,求这个框架的体积是多少立方分米?第三道:甲.乙两包盐的质量比是4:1,
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![第一道:甲数与乙数的比是20的4/5,甲数是多少?第二道:用一根长24分米的铁丝做一个长方体框架,使长.宽.高的比是3:2:1,求这个框架的体积是多少立方分米?第三道:甲.乙两包盐的质量比是4:1,](/uploads/image/z/10378574-62-4.jpg?t=%E7%AC%AC%E4%B8%80%E9%81%93%EF%BC%9A%E7%94%B2%E6%95%B0%E4%B8%8E%E4%B9%99%E6%95%B0%E7%9A%84%E6%AF%94%E6%98%AF20%E7%9A%844%2F5%2C%E7%94%B2%E6%95%B0%E6%98%AF%E5%A4%9A%E5%B0%91%3F%E7%AC%AC%E4%BA%8C%E9%81%93%EF%BC%9A%E7%94%A8%E4%B8%80%E6%A0%B9%E9%95%BF24%E5%88%86%E7%B1%B3%E7%9A%84%E9%93%81%E4%B8%9D%E5%81%9A%E4%B8%80%E4%B8%AA%E9%95%BF%E6%96%B9%E4%BD%93%E6%A1%86%E6%9E%B6%2C%E4%BD%BF%E9%95%BF.%E5%AE%BD.%E9%AB%98%E7%9A%84%E6%AF%94%E6%98%AF3%3A2%3A1%2C%E6%B1%82%E8%BF%99%E4%B8%AA%E6%A1%86%E6%9E%B6%E7%9A%84%E4%BD%93%E7%A7%AF%E6%98%AF%E5%A4%9A%E5%B0%91%E7%AB%8B%E6%96%B9%E5%88%86%E7%B1%B3%3F%E7%AC%AC%E4%B8%89%E9%81%93%EF%BC%9A%E7%94%B2.%E4%B9%99%E4%B8%A4%E5%8C%85%E7%9B%90%E7%9A%84%E8%B4%A8%E9%87%8F%E6%AF%94%E6%98%AF4%3A1%2C)
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