(翻译)In 1858 H.L.Lipman had such an idea He took out a pencil,a piece of paper

问题描述:

(翻译)In 1858 H.L.Lipman had such an idea He took out a pencil,a piece of paper

在1858年 H.L.Lipman 产生了一个想法,于是他拿出了一支笔和一张纸