噓 idfor:哩洗勒叭啥小拉 10/26 00:17
推 Atomy:very funny, Peter 10/26 00:20
→ bbegg:為啥樓上會那樣回阿...這是在我們系館的笑話 10/26 02:01
→ bbegg:也是有人在上面寫very funny, Peter 10/26 02:01
噓 CoperChen:建設性呢? 10/26 02:54
噓 genius012:建設性呢? 10/26 03:44
expand (a+b)
ans : (a+b)= (a + b)
= (a + b)
= (a + b)
= (a + b)
= (a + b)
= (a + b)
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