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萬花筒
Author:
賴詩唐
GeoGebra
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兩位數除以一位數（一）
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
拼砌四邊形
判斷球體
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動態文字多項式函數
中位线的副本
算幾不等式
三角形重心的变化.许兴华数学
翰林數學_2下_CH3-4_三角形的外角大於任一內對角
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Linear Equations
Statistics
Statistical Characteristics
Parallelogram
Trigonometric Functions