(2.0 x 10^10) X (3.4 x 10^6)=
(5.0 x 10^8) X (2.0 x 10^4)=
Thanks
收錄日期: 2021-04-21 19:02:30
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20160609105452AAl10qg