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zuiduan
Author:
luodeqin@keleshuxue.com
GeoGebra
最短的弦
最短的弦
New Resources
找出對稱軸
柱體建築師
錐體建築師
兩組對邊相等和有直角的四邊形
四邉形 (四年級) 教師版
Discover Resources
Difference of Two Squares 平方差 (2)
trigonometry3
學習活動四平行線法的原理
分解角柱
初中动点问题的制作方法-单位向量法
Discover Topics
Complex Numbers
Differential Calculus
Right Triangles
LCM and GCD
Tree Diagrams