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Jiawen Yun
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Jiawen Yun
GeoGebra
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【案例】2013年安徽高考15题
柱體建築師
四邊形的特性
【案例】圆柱体内放置一个大球六个小球
兩位數除以一位數(二)
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测试
角α与-α的正弦函数关系
圓內接四邊形--預習工作紙
錐體體積圖解
拋物線代數性質,光學性質
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Constructions
Pie Chart or Circle Chart
Perimeter
Curve Sketching
Vectors