6342| 24
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益智題目 |
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點(diǎn)評(píng)
x的平方減去313倍y的平方等于1,求滿(mǎn)足這個(gè)等式的x和y
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點(diǎn)評(píng)
圓的方程不是這個(gè)樣子哈,應(yīng)該是雙曲線方程
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