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test2
Author:
Cheuky Li
GeoGebra
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平行線的判定
垂直線的斜率
讀磅
三角函数 的副本
百分數及其應用
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三角測量
找找看三角形外接圓的圓心在哪?
trigonometry
加減乘除运算 出题器【有数字键盘】
椭圆内切圆链
Discover Topics
Cylinder
Inequalities
Standard Deviation
Numbers
Real Numbers