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教学素材:离心率相同的椭圆
Author:
清风拂琴,陌上花开
GeoGebra
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折扣
第八周作业2
椭圆内切圆链
异形操场
百分數及其應用
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正方体展开图
對稱及變換
雨刷中的數學
Copy of 3S2 01a 平行四邊形 20151207
fabunaci1060323
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Rectangle
Surface
Geometric Transformations
Fractions
Multiplication