正确答案:

题目：由于目前光逻辑器件的功能还较简单，不能完成控制部分复杂的逻辑处理功能，因此国际上现有的分组光交换单元还要由电信号来控制，即所谓的电控光交换。（）

解析：√

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举一反三的答案和解析：

[单选题]()构建一个用户群，使之在内部可以相互通信.

虚拟专用网

[单选题]终端到终端的信息交换需用到().

运输层、会话层、表示层和应用层

[单选题]锅炉，是指利用各种燃料、电或者其他能源，将所盛装的液体加热到一定的参数，并对外输出热能的设备，其范围规定为容积大于或者等于()L的承压蒸汽锅炉。

30，

[单选题]异步时分复用的理解，正确的是().

信息和时隙间无任何关系.信息的区分是根据信头中的标志

[单选题]电路域话务掉话比属于()KPI。

呼叫保持特性类

[多选题]税收的概念包括以下内容（ ）

征税目的是满足社会公共需要

税收是以政府为主体，凭借政治权力进行的分配

税收分配对象是剩余产品价值

解析：ACD

[多选题]RNC根据收到的RRC CONNECTION REQUEST建立了无线链路的物理信道信息，其中包含?()

FrameOffset

pecial Burst Scheduling

DL功率

DL时隙ISCP

解析：A, B, C, D

[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]系统使用GPS作为时钟源时，要求GPS最少能够捕获几个星____

3