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二元一次
Author:
張閎
GeoGebra
New Resources
Nested spiral octagon
小数 的副本
四邊形的特性
sanjiaohanshu
畫出對稱圖形
Discover Resources
星球運動模擬
[問題] 行列式 = 0 的機率
分年細目：7-a-12 能在直角坐標平面上描繪常數函數及一次函數的圖形。
例题2（P点可拖动）
中国节灯笼
Discover Topics
Arithmetic Operations
LCM and GCD
Parallelogram
Orthocenter
Rotation