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Author:
Jia-ming Shiu
C
GeoGebra
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兩位數除以一位數（一）
拼砌四邊形
球體建築師
兩位數加法
【案例】2018年全国1卷理科12题
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挑战中考压轴题1.1.3
Rotational Symmetry
vbvbvbvc
reflectional symmetry_5
圆面积和周长展开示意图
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Standard Deviation
Orthocenter
Quadratic Equations
Parabola
Poisson Distribution