y=kx+b(k≠0)
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蛤?你想看什么?
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我的油田我的礦 29 Jan @ 7:18pm 
新年快乐!
四月 6 Aug, 2024 @ 7:36pm 
立秋喽,祝你天天开心qwq
我的油田我的礦 13 Jul, 2024 @ 4:12am 
:lena_woahh:
我的油田我的礦 8 Feb, 2024 @ 10:46pm 
除夕快乐:wintersnowman2023: