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等角对等边（等边对等角）
Author:
夜雨嘀嗒
Topic:
Triangles
GeoGebra
New Resources
平行線的判定
双心四边形
第八周作业2
百分數及其應用
垂直線的斜率
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滾動
一元二次不等式(2)
q5-11
愛心
學測試題
Discover Topics
Square
Cone
Coordinates
Inequalities
Sine