题目内容

一般通信网络（）三大部分组成

A. 接入网
B. 交换网
C. 传输网
D. 物联网

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通信系统的分类有（）

A. 按传输方式分基带传输和频带传输
B. 按通信业务分话务通信和非话务通信
C. 按传输媒质分有线通信和无线通信
D. 按传输信号的特性分模拟信号和数字信号

1. Emergency Medicine requires the knowledge and skills for the prevention, diagnosis and management of acute and urgent aspects of illness and injury.

A. 对
B. 错

2. Emergency Medicine does not include general medicine as subspecialties.

A. 对
B. 错

3. Emergency room nurses are among emergency practitioners to provide preliminary emergency room care.

A. 对
B. 错