正确答案: ABCD

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题目：移动电话呼叫前转包括（）。

解析：ABCD

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学习资料的答案和解析：

[多选题]UPS电源由（）等组件构成。

整流模块

逆变器

蓄电池

静态开关

解析：ABCD

[多选题]不间断供电电源系统采用市电经（）供给380/220V交流50Hz正弦波稳压稳频电源。

整流器

逆变器

解析：AB

[单选题]接入网主要分为有线接入网和（ ）接入网

无线

[多选题]阅读以下短文，回答98-100题。 【IPv6 is not interoperable with IPv4，In essence.it establishes a parallel version of the Internet not directly accessible with IPv4 sofeware.This means softwate upgrades or translator facilities are necessary for networking devices that need to communicate on both networks.Most modern computer operating systems already support both versions of the Internet Protocal.Network infrastrutures，however，are still lagging in this development.Aside form the complex array of physical connections that make up its infrastrure，the Internet is facilitated by bi- or multi-lateral commercial contracts(e.g. pearing agreements)，and by technical spesifications or protocals that describe how to exchange data over the network.Indeed，the Internet is defined by its interconnections and routing policies.】 Based on the paragraph above， it is shown that in order to deploy IPv6 protocol on the Internet，（）has to be built. The network devices which need to communicate with both networks are required to have upgraded software or （）in the movement of IPv4 to IPv6 transition，（）are relatively slow in this event.

separated network

mobile network

radio network

IPv6 software B．translator facilities C．operating systems D．IPv4 software

解析：A,B,D

[单选题]ICIC是()的干扰规避:

频域