科研之友
微信
新浪微博
Facebook
分享链接
摘要
<正>Stephen Hawking is a British scientist. He is one of the most famous scientists in the world.He is an expert(专家)on black holes(黑洞). He studied(研究)the beginning and the end of the universe(宇宙).Hawking was born and lived in England. His father was a medical scientist(医学家).
