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椭圆的定义

Author:guomenglin

New Resources

四邉形 (四年級) 教師版
柱體建築師
兩位數加法
第八周作业
找出對稱軸

Discover Resources

Congruent Triangles Demo
水波干涉
拋物線
三角形的重心
科赫雪花

Discover Topics

Frequency Distribution
Planes
Multiplication
Congruence
Vectors 3D (Three-Dimensional)

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