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纏繞畫 五號
Author:
莊智薇
GeoGebra
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兩位數加法
四邉形 (四年級) 教師版
拼砌四邊形
兩組對邊相等和有直角的四邊形
【案例】2018年全国1卷理科12题
Discover Resources
test1
小精靈
平行四邊形的組合
x²+y²+z²的取值范围
內心
Discover Topics
Derivative
Differential Calculus
Combinatorics
Normal Distribution
Symmetry