别看回形针结构简单,制造容易可它的作用却很大。它可使杂乱的稿件条理化,还可以很方便地随时增减页数,目前已成为全世界办公室人员和学生必不可少的文化用品。它是九十年前由挪威人约翰·瓦勃发明的。据报道,今年挪威首都奥斯陆高科学 Do not look at the simple structure of paper clips, easy to manufacture it can be a great role. It can mess up the manuscript of manuscripts, but also can easily increase or decrease the number of pages at any time, has now become the office staff and students worldwide indispensable stationery. It was invented by Norwegian John Wabe 90 years ago. According to reports, this year Oslo, Norway’s capital of high science