要说明原因【急】1.比的后项一定,比的前项和比值成反比例.()2.把一块长方形地按1:100的比例画在平面图上,图上长方形面积与实际面积的比是1:100()
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![要说明原因【急】1.比的后项一定,比的前项和比值成反比例.()2.把一块长方形地按1:100的比例画在平面图上,图上长方形面积与实际面积的比是1:100()](/uploads/image/z/8653044-12-4.jpg?t=%E8%A6%81%E8%AF%B4%E6%98%8E%E5%8E%9F%E5%9B%A0%E3%80%90%E6%80%A5%E3%80%911.%E6%AF%94%E7%9A%84%E5%90%8E%E9%A1%B9%E4%B8%80%E5%AE%9A%2C%E6%AF%94%E7%9A%84%E5%89%8D%E9%A1%B9%E5%92%8C%E6%AF%94%E5%80%BC%E6%88%90%E5%8F%8D%E6%AF%94%E4%BE%8B.%EF%BC%88%EF%BC%892.%E6%8A%8A%E4%B8%80%E5%9D%97%E9%95%BF%E6%96%B9%E5%BD%A2%E5%9C%B0%E6%8C%891%EF%BC%9A100%E7%9A%84%E6%AF%94%E4%BE%8B%E7%94%BB%E5%9C%A8%E5%B9%B3%E9%9D%A2%E5%9B%BE%E4%B8%8A%2C%E5%9B%BE%E4%B8%8A%E9%95%BF%E6%96%B9%E5%BD%A2%E9%9D%A2%E7%A7%AF%E4%B8%8E%E5%AE%9E%E9%99%85%E9%9D%A2%E7%A7%AF%E7%9A%84%E6%AF%94%E6%98%AF1%EF%BC%9A100%EF%BC%88%EF%BC%89)
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