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2S2 3S3 角的認識
Author:
makkei
GeoGebra
New Resources
第八周作业
平行線的判定
垂直線的斜率
百分數及其應用
折扣
Discover Resources
阿波羅尼斯問題：與三圓相切的圓
畢氏定理
area 面積
congruent triangles_provided by Mr Yeung Kar Chun
加减乘除运算出题器
Discover Topics
Optimization Problems
Definite Integral
Straight Lines
Power Functions
Addition