SNS，Social Networking Services，即社会性网络服务，专指旨在帮助人们建立社会性网络的互联网应

With the development of electronic technology , the Social Networking Services (SNS) have become an essential part of peoples life, such as Microblog, Twitter, Facebook, etc. Nowadays people tweet feelings and stories, share experience and make friends via the social network. Anybody in the SNS world could keep abreast of what is happening elsewhere in the world and keep in deep touch with people around. However, rumors, mudslinging and defamation come along with the freedom of peoples tweets. Should we issue related laws to control this situation？ Whats your opinion？ Write an essay of about 400 words. You should supply an appropriate title for your essay.

A、SEO (Search Engine Opimizaion,搜索引擎优化)

B、SEM (Search Engine Marketin,搜索引擎营销)

C、P4P (Pay for Performance,按效果付费)

D、EDM (Email Diret Maketing,电子邮件营销).

E、SNS (Social Networking Services,社会性网络服务)营销

F、IGA (InGaAderising.游戏植入式广告)

A、门户网站：是指通向某类综合性互联网信息资源并提供有关信息服务的应用系统。典型的门户网站有新浪网、网易和搜狐网等

B、SNS：全称Social Networking Services，即社会性网络服务，专指旨在帮助人们建立社会性网络的互联网应用服务，典型的sns网站：校内网、开心网、facebook、腾讯微博等等

C、IM：即时通讯（Instant Messenger，简称IM），是一种基于互联网的及时交流消息的业务，代表产品有：百度Hi、MSN、QQ等

D、B2B：（Business To Business），是指一个互联网市场领域的一种，是企业对企业之间的营销关系。代表产品有：淘宝、京东商城等

effectively support various kinds of fixed and mobile broadband services，such as up-and down-loading You tube and SNS（Social Networking Services）with rich video file，as well as broadband mobile Internet services. Such All-IP network is called NGN（Next Generation Network），which guarantees secure authentication and QoS such as the bandwidth and the delay. From the service point of view，convergence of fixed and mobile communications，known as FMC（Fixed Mobile Convergence）is becoming a key increasing new services and expanding the market.】 Form the paragraph above，we can see that（）can be defined as a network that can effectively support various kinds of fixed and mobile broadband services，with guaranteed QoS in terms of（）and etc. And the key to develop new services and gain larger market share should be（）

A．All-IP access network B．broad band network C．NGN D．social network A．data rate B．error rate C．availability D．band width， delay A．mobile communications B．Internet C．All-IP core network D．Fixed Mobile Convergence

SnS溶于(NH₄)₂S溶液。

(名词解释) SNS

A. 博客

B. Wiki

C. RSS

D. SNS