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dynamics dragon
Author:
赵林
GeoGebra
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【案例】2013年安徽高考15题
兩位數除以一位數(二)
兩組對邊相等和有直角的四邊形
球體建築師
拼砌四邊形
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特別角的三角函數值(1)
Direct Variation
四邊形面積問題
ㄩㄢ
含参的分段函数的单调性问题
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Distributions
Solids or 3D Shapes
Cube
Rhombus
Special Points