http://www.flickr.com/photos/11667399@N03/5367092974/
see the website~~
i calculate x =3999 and y=4001 ,right?
I cannot not think how to do a,b and c parts~~
please help me,, or give some hints~!!
收錄日期: 2021-04-23 23:23:26
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110118000051KK01286