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@dc_89.89: 別死記公式了！等差數列公式，其實就是梯形面積公式，不信你看！#數學 #我要上推薦 #流量回來 #流量 @抖音流量傳播員（台灣🇹🇼） @TikTok

教你數學(・ω・)ノ
教你數學(・ω・)ノ
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Region: TW
Thursday 18 June 2026 06:55:08 GMT
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jonnyjoestar730
55 :
項數怎麼算
2026-07-18 17:17:13
0
user900541447737
Vincent :
👍👍👍
2026-08-22 02:13:11
0
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