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Author:
尊享蛋包饭
在移动端的测试
GeoGebra
New Resources
算柱 (兩位數)
兩位數除以一位數（二）
直角坐標平面上的旋轉變換
兩組對邊相等的四邊形
判斷球體
Discover Resources
CircleIII
量角器1
Shoplifting and theft histogram
弹簧振子的 简谐运动
撒针估算面积实验
Discover Topics
Addition
Arithmetic Operations
Equilateral Triangles
Coordinates
Confidence Interval