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1977江苏1(5)
Author:
常振虎
GeoGebra
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【案例】2018年全国1卷理科12题
兩組對邊相等的四邊形
判斷球體
四邊形的特性
球体的体积推导（优化版）
Discover Resources
三角柱算體積
Tusi Couple
平行四邊形有甚麼特性？
勾股树的副本
平移練習
Discover Topics
Logic
Derivative
Natural Numbers
Diagrams
Quadratic Equations