Why ??
回答 (3)
2006-10-22 2:43 am
✔ 最佳答案
說明:(-a)/(+b)=+(a/b)=a分b
2006-10-21 18:44:25 補充：
說明:(+a)*(+b)=+(a*b)=ab
2006-11-02 6:54 am
冇意思!
2006-10-19 5:26 am
冇得解.....定侓!!
收錄日期: 2021-04-20 21:45:27
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061018000051KK04364