O O O
A B C
佢話A,B和C分別要用線尼連到上面的3個O,但D線點都唔可以相交,究竟點先可以做到?
收錄日期: 2021-04-13 17:08:00
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100306000051KK01789