如图,在△ABC中,点D、E分别在边AB、AC上.给出5个论断:①CD⊥AB ②BE⊥AC ③AE=CE ④∠ABE=30° ⑤CD=BE⑴从论断①、②、③、④中选取3个作为条件,将论断⑤作为结论,组成一个真命题,那么你选的3个
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![如图,在△ABC中,点D、E分别在边AB、AC上.给出5个论断:①CD⊥AB ②BE⊥AC ③AE=CE ④∠ABE=30° ⑤CD=BE⑴从论断①、②、③、④中选取3个作为条件,将论断⑤作为结论,组成一个真命题,那么你选的3个](/uploads/image/z/1576157-5-7.jpg?t=%E5%A6%82%E5%9B%BE%2C%E5%9C%A8%E2%96%B3ABC%E4%B8%AD%2C%E7%82%B9D%E3%80%81E%E5%88%86%E5%88%AB%E5%9C%A8%E8%BE%B9AB%E3%80%81AC%E4%B8%8A.%E7%BB%99%E5%87%BA5%E4%B8%AA%E8%AE%BA%E6%96%AD%EF%BC%9A%E2%91%A0CD%E2%8A%A5AB+%E2%91%A1BE%E2%8A%A5AC+%E2%91%A2AE%3DCE+%E2%91%A3%E2%88%A0ABE%3D30%C2%B0+%E2%91%A4CD%3DBE%E2%91%B4%E4%BB%8E%E8%AE%BA%E6%96%AD%E2%91%A0%E3%80%81%E2%91%A1%E3%80%81%E2%91%A2%E3%80%81%E2%91%A3%E4%B8%AD%E9%80%89%E5%8F%963%E4%B8%AA%E4%BD%9C%E4%B8%BA%E6%9D%A1%E4%BB%B6%2C%E5%B0%86%E8%AE%BA%E6%96%AD%E2%91%A4%E4%BD%9C%E4%B8%BA%E7%BB%93%E8%AE%BA%2C%E7%BB%84%E6%88%90%E4%B8%80%E4%B8%AA%E7%9C%9F%E5%91%BD%E9%A2%98%2C%E9%82%A3%E4%B9%88%E4%BD%A0%E9%80%89%E7%9A%843%E4%B8%AA)
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