A communcitions protocal is a set of（）for exchanging information over a network.

题库:初级通信工程师 类型:最佳选择题 时间:2020-05-27 14:04:56 免费下载:《2013年初级通信工程师考试上午真题》Word试卷

A communcitions protocal is a set of（）for exchanging information over a network.
A.machine
B.software
C.rules
D.hardware

本题关键词:僵a,ECF-A,EP21-A,EP6-A,EP18-A,EP7-A,Lp(a),Lp（a）,A-aDO2,抗A;