A.y = 2.5 + 2 ln x
B.y = 4.5 ln x
C.y = 4.5 + ln x
D.y = 2.5 ln x
收錄日期: 2021-05-02 14:00:42
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20160105172604AA6OqWU