如图1,点D,E在三角形ABC的边BC上,连接AD,AE.接下来的题目在问题补充中.①AB=AC.②AD=AE.③BD=CE.以此三个等式中的两个作为命题的提设,另一个作为命题的结论,构成三个命题:①②→③;①③→②
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![如图1,点D,E在三角形ABC的边BC上,连接AD,AE.接下来的题目在问题补充中.①AB=AC.②AD=AE.③BD=CE.以此三个等式中的两个作为命题的提设,另一个作为命题的结论,构成三个命题:①②→③;①③→②](/uploads/image/z/13419687-39-7.jpg?t=%E5%A6%82%E5%9B%BE1%2C%E7%82%B9D%2CE%E5%9C%A8%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E7%9A%84%E8%BE%B9BC%E4%B8%8A%2C%E8%BF%9E%E6%8E%A5AD%2CAE.%E6%8E%A5%E4%B8%8B%E6%9D%A5%E7%9A%84%E9%A2%98%E7%9B%AE%E5%9C%A8%E9%97%AE%E9%A2%98%E8%A1%A5%E5%85%85%E4%B8%AD.%E2%91%A0AB%3DAC.%E2%91%A1AD%3DAE.%E2%91%A2BD%3DCE.%E4%BB%A5%E6%AD%A4%E4%B8%89%E4%B8%AA%E7%AD%89%E5%BC%8F%E4%B8%AD%E7%9A%84%E4%B8%A4%E4%B8%AA%E4%BD%9C%E4%B8%BA%E5%91%BD%E9%A2%98%E7%9A%84%E6%8F%90%E8%AE%BE%2C%E5%8F%A6%E4%B8%80%E4%B8%AA%E4%BD%9C%E4%B8%BA%E5%91%BD%E9%A2%98%E7%9A%84%E7%BB%93%E8%AE%BA%2C%E6%9E%84%E6%88%90%E4%B8%89%E4%B8%AA%E5%91%BD%E9%A2%98%EF%BC%9A%E2%91%A0%E2%91%A1%E2%86%92%E2%91%A2%EF%BC%9B%E2%91%A0%E2%91%A2%E2%86%92%E2%91%A1)
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