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dynamics dragon
Author:
赵林
GeoGebra
New Resources
拼砌四邊形
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
三位數除以一位數(一)
三位數除以一位數(二)
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累積頻數多邊形
基測數學 100-1-33 判斷到點與到線等距的點
Klein Bottle
常態分布和標準差 Normal Distribution and Standard Deviation
sweet sugar
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Combinatorics
Division
Hyperbola
Means
Root