→ GLP:似乎不是這樣子@@ 58.115.136.4 06/12 15:48
→ midarmyman:哈哈 我又錯了 換你回一下 140.117.198.78 06/12 15:59
→ midarmyman:哪裡錯? 140.117.198.78 06/12 16:01
→ GLP:似乎是我看錯了@@ 抱歉 原以為是z=x^2+y^2 58.115.136.4 06/12 17:42
推 lukk790326:那麼要如何算呢~~ 220.136.217.45 06/12 20:54
→ midarmyman:嚇死我@@ 140.117.198.78 06/12 22:36