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将军饮马
Author:
辛贺华
GeoGebra
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盈利與虧蝕
正方形雪花图案
百分數及其應用
斐波那契螺旋弧线（表格法-可动态调节）
常见四边形是否是双心四边形
Discover Resources
ghseh 二次函數描點法上下平移-6
(001)80201辛宇婕
三角五形
數值滑桿_長方形1
复合函数
Discover Topics
Sequences and Series
Trapezoid
Trigonometry
Sphere
Optimization Problems