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橢圓
Author:
s911415
Topic:
Ellipse
GeoGebra
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龙形曲线-分形龙
三角函数 的副本
多邊形的面積
常见四边形是否是双心四边形
科氏力 (Coriolis Force)
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題 4
Q3-11
滑桿2
運用量度器比較角的大小
认识方程
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Area
Linear Functions
Integers
Symmetry
Trapezoid