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密鋪
Author:
chen mingchuan
GeoGebra
New Resources
拼砌四邊形
兩位數除以一位數（一）
兩位數加法
球体的体积推导（优化版）
判斷球體
Discover Resources
跳動的愛心－立體版
blue
余弦定理的证明
复数的模 计算 自动批改
GeoGebra创建的小游戏集
Discover Topics
Multiplication
Difference and Slope
Interest Calculation
Tangent Function
Ratios