As follows : (part c)
圖片參考:http://hk.geocities.com/stevieg_1023/0PMMO.gif
(u0=1 and u1=2)
收錄日期: 2021-04-22 00:33:46
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090309000051KK01490