http://images.plurk.com/pMK6-38mN0u49559E2ErBuFdkvb.jpg
需要第22跟23題的算式!
收錄日期: 2021-04-30 16:50:39
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20121112000010KK08121