我想問大家知唔知咩叫垂直線?
不過,我睇大家都知
知既,就答我啦
我唔記得左
唉~~~~
垂直線(小學既野)
2008-03-19 6:13 am
回答 (3)
2008-03-19 6:27 am
2008-03-19 6:14 am
one of them high to low
one of them left to right
their point must be 90o
one of them left to right
their point must be 90o
收錄日期: 2021-04-13 15:19:24
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080318000051KK03319