正确答案: D

差异性

题目：利用网络的高效率收集和加工处理信息的优势，针对消费者的不同需求使得营销活动更加个性化的做法属于网络营销的（ ）特点

解析：D

查看原题

举一反三的答案和解析：

[单选题]下面哪一项对泄漏电缆描述最准确?()

泄漏电缆既可以传输信号，又可以收发信号

[多选题]【An overall cellular network contains a number of different elements from the base transceiver station (BTS) itself with its antenna back through a base station controller (BSC), and a mobile switching centre (MSC) to the location registers (HLR and VLR) and the link to the public switched telephone network (PSTN). Of the units within the cellular network, the BTS provides the direct communication with the mobile phones. There may be a small number of base stations then linked to a base station controller. This unit acts as a small centre to route calls to the required base station, and it also makes some decisions about which of the base station is best suited to a particular call. The links between the BTS and the BSC may use either land lines of even microwave links. Often the BTS antenna towers also support a small microwave dish antenna used for the link to the BSC. The BSC is often co-located with a BTS. The BSC interfaces with the mobile switching centre. This makes more widespread choices about the routing of calls and interfaces to the land line based PSTN as well as the HLR and VLR.】 From the paragraph above, in a cellular network, the （98） can provide direct communication with a mobile phone, the （99） acts as a small centre to route calls to the required base station, and it also makes some decisions about which of the base station is best suited to a particular call.（100） can be used to link the BSC with related BTS。

BTS

MS

VLR

解析：B,C,D

[单选题]光纤通信常用的调制方式是（ ）。

光强度调制

[单选题]智能网中()支撑着业务的商业管理和操作维护管理.

SMS

[多选题]移动通信业务按通信方式与服务对象划分，主要有无线寻呼和（）等业务。

调度电话

无绳电话

移动电话

移动数据

解析：ABCD

[单选题]下列调制方式中，（）是ITU-T关于ADSL标准建议采用的。

DMT

[单选题]所谓虚电路是只有在有数据传送时才占用这条（）电路。

逻辑