说明：  本习题集是北京邮电大学出版社出版的《通信原理》教材的配套教学参考书。包括北邮《通信原理》教材（北京邮电大学出版社，周炯磐等著）所有章节课后习题标准解答，另外我还附上一个在线版的电子书，里面多了点北邮的历年真题啊什么的。
(This exercise sets the Beijing University of Posts and Telecommunications Publishing House s Communication Theory supporting teaching reference materials. Including the Beijing University of Posts and Telecommunications, Communication Theory materials (Beijing University of Posts and Telecommunications Press, Zhou Pan waiting) All sections of the standard answer after-school exercises, while I am also enclosing an online version of e-books, which will leave more of the Beijing University of Posts and Telecommunications over the years really ah what the title.)