responsibilities to respect the freedom of others. For example, if you distribute copies of such a program, whether gratis or for a fee, you must pass on to the recipients the same freedoms that you received. You must make sure that they, too, receive or can get the source code. And ...
imposing paper and ink into the process and the actual printing itself, for which he adapted the screw press
The industrial选项：与第一段“In the early Middle Ages, Europe imported an industrial process from China”信息不符；
），可以判断待插入部分应该是在讲关于“意大利字体”的事情，观察四个空的位置，段落最后一句在说意大利字体的事情，前面都是在讲德国字体，而且最后一句在介绍一种被
German printers had the disadvantage of working with the complex typeface that the Italians sneeringly referred to as "Gothic " and that later became known as black letter.