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Author:
辛贺华
GeoGebra
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盈利與虧蝕
撒针估算面积实验
第八周作业3
龙形曲线-分形龙2
百分數及其應用
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橢圓
杯麵
Copy of gjc091b18 圓的割線
畢式定理 (13)的副本
任務1的副本
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Coordinates
Surface
Calculus
Optimization Problems
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