正确答案: B

10～1m(1-1～10-2m)

题目：移动通信使用的厘米波的波长范围是()。

解析：B

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举一反三的答案和解析：

[单选题]用户预先支付移动话费，而不必缴纳入网费和月租费的业务称为（）。

预付费 话费保障 移动话费 一卡双号

[单选题]哪些不是LTE核心网EPC组成?

T-GW

[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]2014年5月我国电信行业主管部门发布《关于电信业务资费实行市场调节价的通告》，宣布所有电信业务资费均实行市场调节价，这意味着我国电信业务资费主要由（ ）制定。

电信企业