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角平分线的性质
Author:
Cao Yiming
移动点A观察线段AB和AC
GeoGebra
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錐體建築師
【案例】2018年全国1卷理科12题
兩組對邊相等和有直角的四邊形
四邊形的特性
算柱 (兩位數)
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总5第五题
數線上的有理數
smps perimeter
No.1
Time
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Terms
Intersection
Geometry
Geometric Distribution