An example of a pure substance is A. elements B. carbon dioxide C. pure water D. all of these E. compounds?
回答 (1)
2016-06-06 9:30 pm
D. all of these
收錄日期: 2021-04-21 18:56:17
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20160606132006AAjhcyM