1. 用四捨五入法
2. ?????????????????????????
快快快快快快快快快快快快快快快快快快!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
10點!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
收錄日期: 2021-04-13 18:58:24
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20120912000051KK00244