中2數學 please help, thanks a lot.
第一題
圖片參考:http://i692.photobucket.com/albums/vv290/alittlefork/qa.jpg
第二題
http://i692.photobucket.com/albums/vv290/alittlefork/qb.jpg
收錄日期: 2021-04-23 23:21:14
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20091226000051KK00685