14043| 1
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[求助] 如何算出\(\frac{2a-b-c}{3}\),\(\frac{2b-a-c}{3}\),\(\frac{2c-b-a}{3}\))在平面上 |
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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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