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陳人瑜proof81
Author:
郭亮偉
GeoGebra
New Resources
球体的体积推导
畫出對稱圖形
兩位數除以一位數（二）
兩位數加法
第八周作业
Discover Resources
物件顯示條件
串珠(兩種顏色)
projection02 by Mr LO WY
百分數：折扣 / 賺賠
鸚鵡螺旋線
Discover Topics
Variance
Division
Stochastic Process or Random Process
Rhombus
Bar Chart or Bar Graph