A) (4.5, 6.5)
B) (5.3,7.6)
C) (4, 6.6)
D) (3.3,7.5 )
收錄日期: 2021-04-24 00:20:22
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20170331222251AAGq3Lf