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象限
Author:
李春培
GeoGebra
New Resources
兩組對邊相等的四邊形
【案例】2018年全国1卷理科12题
四邊形的特性
三位數除以一位數（二）
【案例】2013年安徽高考15题
Discover Resources
Area of Parallelogram
物件顯示條件
Activity 3
圆柱沿着螺线展开成平行四边形
开关灯
Discover Topics
Correlation
Boxplot
Conditional Probability
Diagrams
Piecewise Functions