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拋物線與光線反射
Author:
紀老師
GeoGebra
New Resources
球体的体积推导
圓的切線方程
【案例】圆柱体内放置一个大球六个小球
三位數除以一位數（二）
兩位數除以一位數（一）
Discover Resources
waaachen
telling the time
线段的最值
Physics
无理数指数幂
Discover Topics
Real Numbers
Addition
Cuboid
Ratios
Boxplot