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sound test file for JS2
作者：
George Sturr
GeoGebra
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seo tool
GGB is Awesome!
Neuberg's Theorem
Using Experimental Probability to Estimate π - Monte Carlo Method
Billard V5.2 and V6
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Side Angle Side Triangle Similarity Model
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Riemann Sum
Proof of Pythagoras' Theorem
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拋物線
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