【多选题】What is the basic idea of a pure aloha?
A.
random resend of conflict
B.
channels are separated by time slots
C.
listen for channels before sending
D.
access channels on demand
【单选题】差分放大器由双端输入变为单端输入,差模电压增益()
【判断题】a是正整数,G={ |n∈Z},运算是普通乘法,则该代数系统构成群。
【判断题】实行全面深化改革,既要加快推进又不能太着急,要做到蹄疾步稳。
【单选题】差分放大器由双端输入变为单端输入,差模电压增益是 。
【单选题】关于消防车道的设计要求,错误的是:
D.
大型消防车使用的消防车道路面标准荷载为20kn/m2
【判断题】The basic idea of the traditional functional organizational structure is specialized division of labor.