S-8-9-S04_能利用平行四邊形的判別性質，判斷四邊形是否為平行四邊形。 | 合作夥伴 | 均一教育平台

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S-8-9-S04_能利用平行四邊形的判別性質，判斷四邊形是否為平行四邊形。

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S-8-9-S04_能利用平行四邊形的判別性質，判斷四邊形是否為平行四邊形。