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Circuit-switching technology is used in Publish Switched Telephone Network(PSTN), Global System for Mobile Communications(GSM) and code Division Multiple Access (CMDA) . It is a ( ) information transfer mode.
A. connection oriented
B. connectionless
C. high bandwidth utilization
D.poor real-time
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第71题
Many Chinese museums and art galleries rolled out online exhibitions，courses and other online services，allowing netizens to take virtual tours and enjoy splendid art feasts online. Which one is not the technology support to this service（）。
A．5G
B．Virtual rreality （VR）
C．Ultrahigh definition video
D．Block chain
答案解析与讨论：https://www.ruantiku.com/shiti/5382411100.html
Many Chinese museums and art galleries rolled out online exhibitions，courses and other online services，allowing netizens to take virtual tours and enjoy splendid art feasts online. Which one is not the technology support to this service（）。
A．5G
B．Virtual rreality （VR）
C．Ultrahigh definition video
D．Block chain
答案解析与讨论：https://www.ruantiku.com/shiti/5382411100.html
第55题
在风险监控中，如果出现了风险登记单未预期的风险或“观察清单”未包含的风险，应该（）
A、进行额外的风险应对规划
B、进行风险审计
C、进行变差和趋势分析
D、召开状态审查会