【单选题】
综合监控工作站界面系统状态服务后的绿色代表含义为___。
A. 主用
B. 备用
C. 停止
D. 故障
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答案
B
解析
暂无解析
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【判断题】
公众移动通信网是为个人提供移动电话业务，由于用户众多，容量大，为了提高频率利用率，采用小区或微小区蜂窝方式组网，必须与公用电话交换机互联，形成整个地区和国家规模的通信网，具备国内和国际漫游功能。
A. 对
B. 错
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【单选题】
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