如图,在△ABC中,∠ACB=90°,AC=BC,D为BC的中点,CE⊥AD,垂足为点E,BF‖AC交CE的延长线于点F.试说明：AB垂直平分DF.
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/28 22:49:32
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