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正弦定理2
Author:
杨欣霞
GeoGebra
New Resources
活动三:应用性质
龙形曲线-分形龙2
比較五件物件的重量
异形操场
平行線的判定
Discover Resources
兩邊和大於第三邊
扇形面積公式
空間坐標
中點_圓_多邊形_軌跡
拋物線2-焦點法
Discover Topics
Statistics
Mathematics
Mode
Tree Diagrams
Reflection