1. 1,3,5,7,?
2. 1,4,7,10,13,?
3. 1/12,4/15,7/18,10/?
收錄日期: 2021-04-12 22:56:04
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061211000051KK04304