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ptccs2new4
Author:
Cheung Wing Chuen
GeoGebra
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【案例】2018年全国1卷理科12题
算柱 (兩位數)
兩位數除以一位數(一)
兩組對邊相等的四邊形
判斷球體
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幾何作圖動畫示範
test
求 a + b 的最大值?
畢氏定理完成20170330final
函数情调
Discover Topics
Geometric Transformations
Matrices
Pyramid
Piecewise Functions
Coordinates