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多普勒效应动态演示
Author:
孟宝兴
GeoGebra
New Resources
兩位數除以一位數(一)
兩組對邊相等和有直角的四邊形
四邊形的特性
三位數除以一位數(二)
柱體建築師
Discover Resources
梯形
Locus (Parallel lines)
cos, sin 與單位圓的副本
点动成线
科赫雪花
Discover Topics
Linear Equations
Unit Circle
Angles
Random Experiments
Geometric Transformations