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如图,AB∥CD,BC∥AD,AB=CD,BE=DF,图中全等三角形的对数是
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如图,AB∥CD,BC∥AD,AB=CD,BE=DF,图中全等三角形的对数是
A.3对
B.4对
C.5对
D.6对
A.3
B.4
C.5
D.6
A.3 B.4
C.5 D.6