New inventions are appearing every day to make our lives easier, longer, warmer, speedier and so on. But only a few inventors de

admin2014-03-31  56

问题    New inventions are appearing every day to make our lives easier, longer, warmer, speedier and so on. But only a few inventors design a new machine or product that becomes so well-known that the invention, named after its creator, becomes a household wo

选项

答案hard round

解析
转载请注明原文地址:https://kaotiyun.com/show/KOgK777K
0

最新回复(0)