2,3,5,7,11,( ),13,17,…………
括號填咩a?
要解釋+!!!!!
唔該曬~~~~~~~
收錄日期: 2021-04-19 21:59:32
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070426000051KK04482