Innskráning
Leit
Útlína
10/14
10/14
Höfundur:
wonderfulgreat
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Nýtt námsefni
直角坐標平面上的旋轉變換
算柱 (兩位數)
美國國旗 (Codex 版)
Earth with coastline
三半圓間的相切圓(Codex╱2026.10.07)
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正方形中點連線及分角線交點連線形狀
Angle at Centre & Angle at Circumference: Proof 圓心角與圓周角:証明
ABC 3
共軛雙曲線
多平面鏡反射成像
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Tölur
Föll
Flatarmál
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Hringur