广播电视大学创办已２０年了。它为大面积地提高劳动者素质，推进社会进步所作出的贡献，应是有目共睹的。而近年来计算机信息网络的出现，利用计算机网络技术开展双向远程教育开始兴起，并显示了高速、高效、高容量的优势，发展势头强劲。因而，如何评价广播电视这一媒体... Radio and Television University has been established for 20 years. It should be obvious to all that it has made great contributions to improving the quality of workers and promoting social progress. In recent years, the emergence of computer information network, the use of computer network technology to carry out two-way distance education began to rise, and showed the advantages of high speed, high efficiency, high capacity, strong momentum of development. Thus, how to evaluate radio and television media ...