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栏目索引考点一全等三角形的性质1.(2018山东临沂,11,3分)如图,∠ACB=90°,AC=BC,AD⊥CE,BE⊥CE,垂足分别是点D,E,AD=3,BE=1,则DE的长是()A.B... 2024-08-176202.3 MB69页21
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