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qppdixyxtysnwmxncv
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考考你:x²-y²=9,xy=6,求x和y
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正整数x,y满足x²-y²=21,求x和y,对学霸来说,完全没难度
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BMjAyMTEyMTAxNTQyNDVfMjc2OTY2MjM0XzYyNDcwMTA1NTkwXzJfMw==_hd15_B8fa27b8a215d7c7b_哔哩哔哩_bilibili
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https://mp.weixin.qq.com/s/NuzYvCK9JjTOgSmxVur9Yw_哔哩哔哩_bilibili
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MC动画 XJ VS QT - 西瓜视频
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向云端啦_哔哩哔哩_bilibili
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qdzkycjkyxts
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狼性小说胡曼玉公公狼性小说胡曼玉公公狼性小说胡曼玉公公胡曼玉是我儿媳妇,她今年27岁,是个小学教师.她人长得漂亮,还特别有韵味,走路的时候_...
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BMjAyMjEyMTExODEwMTVfMTg2MzMwNzk3XzkwODkyNzMzOTQyXzJfMw==_hd15_Be484188b9bdfe436_哔哩哔哩_bilibili