计算机网络的课后答案还有一些品是老师讲的题目哦！对于一些同学来学很实用哦 讲解很简单并很使用哦！-Computer network class answers and some product is teacher speak topic! For some students to learn very practical oh Interpretation is very simple and very use!

北京大学赵老师的上课课件，详细讲解了OFDM技术-Courseware class teacher Zhao Peking University, gave a detailed account of OFDM technology