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2平行四邊形面積
Author:
maths_p5
GeoGebra
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第八周作业1
中华人民共和国国旗
第三周作业效果演示
折扣
平行線的判定
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下和與上和
面、面相交
Equality of Ratios
Copy of 作業-太極
平面截圆锥面
Discover Topics
Algebra
Parallelogram
Functions
Surface
Inequalities