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河北省2016年25题
Author:
辛贺华
GeoGebra
New Resources
Nested spiral octagon
近似值：有效數字
球體建築師
兩組對邊相等和有直角的四邊形
算柱 (兩位數)
Discover Resources
雨刷練習
模擬3D空間物件：空間坐標軸的建立
perd fr ctr bisect
區塊斜線教學
封閉區域著色
Discover Topics
Scalene Triangles
Ellipse
Curve Sketching
Root
Bar Chart or Bar Graph