你好,很高兴为你回答
Stephen Hawking, the most prominent scientists in 1942 was born in England on January 8
A child, he keen on the design of complex toys,However, in his twenties, suffering from a...
你好,很高兴为你回答
Stephen Hawking, the most prominent scientists in 1942 was born in England on January 8
A child, he keen on the design of complex toys,However, in his twenties, suffering from a...