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Author:
王福生
GeoGebra
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平行線的判定
活动三:应用性质
异形操场
小学资源收集
比較五件物件的重量
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碎形
平行線
旋轉對稱
gmj106a13 八角錐
【2020高考】全国1卷(理科) 第18题
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Means
Statistical Characteristics
Natural Numbers
Inequalities
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