用英语写2篇发明的介绍
问题描述：
用英语写2篇发明的介绍
一两百字就行,比如电灯是怎样发明的,冰箱是谁发明的,要用英语哦.2篇
答
Computer enjoys a long history and it is one of the most inventions.Today,it is widely used in many fields.The oldest computers is the abacus used in China several centries ago,but the computer is bec...