Scientists discovered that atoms of some substances are radioactive.

admin2007-10-08  65

问题 Scientists discovered that atoms of some substances are radioactive.

选项

答案科学家们发现某些物质的原子具有放射性。

解析
转载请注明原文地址:https://kaotiyun.com/show/n4QC777K
本试题收录于: 英语题库普高专升本分类
0

最新回复(0)