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切線斜率的副本
Author:
xiaodandan
,
羅驥韡 (Pegasus Roe)
GeoGebra
New Resources
异形操场
比較五件物件的重量
椭圆内切圆链
撒针估算面积实验
折扣
Discover Resources
倍數的判別
test
橫向橢圓
congruent (AAA)
小六 平均數 (供教師講解用)
Discover Topics
Linear Regression
Standard Deviation
Rational Numbers
Perimeter
Subtraction