更新1:
help!!!!!!!!!!
更新2:
find the period of a wave if the frequency is 10 hz?
更新3:
我唔明!!!!!!!!!!!!!!!!!!!!!!!!!!
更新4:
ms-1點解?
help!!!!!!!!!!
find the period of a wave if the frequency is 10 hz?
我唔明!!!!!!!!!!!!!!!!!!!!!!!!!!
ms-1點解?
收錄日期: 2021-04-20 13:35:50
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20130110000051KK00320