A． Next Generation Network(NGN) is a () network ,which is able to provide Telecomunication Services ti users and to make use of multiple broadband, QoS-enable transport technologies and in which service-related functions are (下题选择) of the underlying transport-related technologies.

A．ISDN

B．ATM

C．circuit-based

D．packet-based

[单选题]A． Next Generation Network(NGN) is a (上题选择) network ,which is able to provide Telecomunication Services ti users and to make use of multiple broadband, QoS-enable transport technologies and in which service-related functions are () of the underlying

[单选题]NGN（Next Generation Network，下一代网络，缩写为NGN）是一个定义极其松散的术语，泛指一个大量采用新技术，以（）技术为核心，同时可以支持语音、数据和多媒体业务的融合网络。A .IP；B .TDM；C .ATM；D .ISDN

[填空题] NGN（Next Generation Network，下一代网络），其网络模型为四层结构，具体为（）、网络控制层、核心传送层、业务管理层。

[单选题]设有以下程序: struct st{int n;struct st *next;}; static struct st a[3]={5,&a[1],7,&设有以下程序: struct st{int n;struct st *next;}; static struct st a[3]={5,&a[1],7,&a[2],9,'/0'},*p; p=&a [0]; 下面选项中，表达式值为6的是______。A．p++-＞nB．p-＞n++C．(*p).n++D

[单选题]设有以下语句： struct st{int n;struct st*next;}; static struct st a[3]={5,&a[1],7,&a[2],9,'/0'},*p; p=&a[0];则表达式的值是6的为______。A．p++-＞nB．p-＞n++C．(*p).n++D．++p-＞n

[单选题]设有以下程序： struct st{int n;struct st*next;}; static struct st a[3]={5,&a[1],7,&a[2],9,'/0/},*p; p=&a[0];下面其值为6的表达式为______。A．p++-＞nB．p-＞n++C．(*p).n++D．++p-＞n

[单选题]Generation Gap A fewyears ago,it was fashionable to speak of a generation g

[单选题]Generation Gap A fewyears ago,it was fashionable to speak of a generation g

[单选题]Generation Gap A fewyears ago,it was fashionable to speak of a generation g

[单选题]Generation Gap A fewyears ago,it was fashionable to speak of a generation g