有關BCAD2AB6DE3的精選大全

如圖,在△ABC中,DE∥BC,AD=2,AB=6,DE=3,則BC的長為(  ).A.9          ...
問題詳情:如圖,在△ABC中,DE∥BC,AD=2,AB=6,DE=3,則BC的長為().A.9                                 B.6C.4                                 D...
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