33542| 2
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[求助] 求证四面体外接球半径平方大于等于棱切球半径平方的三倍 |
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毋因群疑而阻独见 毋任己意而废人言
毋私小惠而伤大体 毋借公论以快私情 |
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发表于 2021-3-17 16:57:52
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毋因群疑而阻独见 毋任己意而废人言
毋私小惠而伤大体 毋借公论以快私情 |
||
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