比:
求下列各題中a:b:c
(A)a/b=2,b/c=5
(B)a=3b,b=5c
收錄日期: 2021-04-23 19:32:37
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070130000051KK03568