分子一定分母和分数值成【 】比例 三角形的面积一定它的底和高成【 】比例 梯形的上底和下底一定面积和高成【 】比例车轮的直径一定所行驶的路程和转数成【 】比例
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![分子一定分母和分数值成【 】比例 三角形的面积一定它的底和高成【 】比例 梯形的上底和下底一定面积和高成【 】比例车轮的直径一定所行驶的路程和转数成【 】比例](/uploads/image/z/2867421-21-1.jpg?t=%E5%88%86%E5%AD%90%E4%B8%80%E5%AE%9A%E5%88%86%E6%AF%8D%E5%92%8C%E5%88%86%E6%95%B0%E5%80%BC%E6%88%90%E3%80%90+%E3%80%91%E6%AF%94%E4%BE%8B+%E4%B8%89%E8%A7%92%E5%BD%A2%E7%9A%84%E9%9D%A2%E7%A7%AF%E4%B8%80%E5%AE%9A%E5%AE%83%E7%9A%84%E5%BA%95%E5%92%8C%E9%AB%98%E6%88%90%E3%80%90+%E3%80%91%E6%AF%94%E4%BE%8B+%E6%A2%AF%E5%BD%A2%E7%9A%84%E4%B8%8A%E5%BA%95%E5%92%8C%E4%B8%8B%E5%BA%95%E4%B8%80%E5%AE%9A%E9%9D%A2%E7%A7%AF%E5%92%8C%E9%AB%98%E6%88%90%E3%80%90+++++++++%E3%80%91%E6%AF%94%E4%BE%8B%E8%BD%A6%E8%BD%AE%E7%9A%84%E7%9B%B4%E5%BE%84%E4%B8%80%E5%AE%9A%E6%89%80%E8%A1%8C%E9%A9%B6%E7%9A%84%E8%B7%AF%E7%A8%8B%E5%92%8C%E8%BD%AC%E6%95%B0%E6%88%90%E3%80%90++++++++%E3%80%91%E6%AF%94%E4%BE%8B)
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