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平方差
Author:
連琨銘
GeoGebra
New Resources
算柱 (兩位數)
三位數除以一位數（一）
小数 的副本
【案例】2018年全国1卷理科12题
兩組對邊相等和有直角的四邊形
Discover Resources
垂直2
P6 圓周01D
兩正方形重疊的形狀(配合習作40頁)
棱柱
尝试绘本
Discover Topics
Parallelogram
Reflection
Statistical Characteristics
Arithmetic
Geometric Distribution