你兒子這麽小,已經做這種題目了。真不容易。
所有跟帖:
• 本來我和他以為這章容易,就是解析幾何(代數部分)的內容.結果這題又把我們打回原形..... -Pilsung- ♂ (171 bytes) () 07/23/2024 postreply 18:48:46
• 本來我和他以為這章容易,就是解析幾何(代數部分)的內容.結果這題又把我們打回原形..... -Pilsung- ♂ (171 bytes) () 07/23/2024 postreply 18:48:46
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