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月有阴晴圆缺
Author:
林峰
GeoGebra
New Resources
椭圆内切圆链
异形操场
龙形曲线-分形龙2
平行線的判定
折扣
Discover Resources
Quiz on Trigonometric Ratios 辨認三角比:測驗
P63-2
圓周 (圖形C)
spinral
y=a(x-h)²+k的副本
Discover Topics
Real Numbers
Line Segment
Straight Lines
Cone
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