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Author:
Big Lee
GeoGebra
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【案例】2018年全国1卷理科12题
【案例】2013年安徽高考15题
兩位數加法
四邊形的特性
算柱 (兩位數)
Discover Resources
waaachen
parallelogram
包絡線2
柱體的總表面面積
两角和的正弦公式几何证明（改进）
Discover Topics
Arithmetic Mean
Logic
Orthocenter
Trigonometric Functions
Rhombus