1。信息广播及其未来信息以及由此而产生的通信可以说是人类社会生活中不可缺少的基本要素。现代通信从十九世纪后半期发明电报、电话及照相技术开始,进入二十世纪发明了无线电广播,到现在已有四十年历史的电视广播时代,已经取得了很大的进步和发展。当今的广播作为日常生活中不可缺少的重要 1. Information broadcasting and its future information, and the resulting communications, can be arguably essential elements of human social life. Since the invention of telegraph, telephone and photographic technologies in the latter half of the nineteenth century, modern communications have invented the radio broadcasting in the twentieth century and have made great strides and developments in the era of television broadcasting, which is now over 40 years old. Today’s radio is an indispensable and important part of everyday life