摘要：In _______ transmission, the channel capacity is shared by both communicating devices at all times. full-duplex 全双工 Which organization has authority o 阅读全文

摘要：==没有对答案，不保证正确性== Chapter 1 Introduction 第一章概述作业 100/100 Page 22-25 Question 1 Identify the five components of a data communication system. 给出一个数据通信系统的 阅读全文