JX是一家经营电子数码产品的B2C网站。JX运用网站数据收集技术，积累了大量的客户访

使用兆欧表前不必切断被测设备的电源。

People around the world used their computers to buy goods，communicate with others， listen to music，see pictures and learn about different places and ideas．In 2006，more people around the world used new ways to communicate and connect with each other through the Internet．

  小题1:   Blog is a short way of saying Web log．Through these personal websites，people can share their experiences，ideas and opinions with anyone on the Internet．People of all ages have their own blogs．For young people，they are a way to show their writings and other forms of self-expression．

 小题2:   These sites include “MySpace”，used mainly by teenagers and young adults. MySpace is an online community that lets people share message and pictures with an increasing number of friends． 小题3:   

YouTube is another Internet site that became more popular this year．This website lets anyone create，share and watch short videos．People can watch almost anything on YouTube：news，sports and entertainment events． 小题4:   These include videos of people singing or dancing，or animals doing funny things．Three young men created YouTube almost two years ago as a personal video sharing service．They recently sold it to Google for more than one half billon dollars． 

Games and entertainment also became a larger part of the Internet this year．One Internet social site is called Second Life． 小题5:   They get married，build homes，operate businesses，buy and sell goods，work，play and attend school．

A．More and more people are buying computers because of the lower price．

B．It is an online world in which computer users create a new self and live a different life．

C．The blog is one form of communication that enjoys growing popularity．

D．People of all ages use computers to express themselves．E. There are music videos，and videos made by people in their own homes．

F. Many Websites offer free services to create personal Web pages and fill them with writing site on the Web．

G. It is the most popular social networking site on the web．

女性，60岁。近2个月来感腹胀就诊。体检：巩膜不黄，腹壁静脉曲张，可见脐疝，脾大平脐，有腹水，下列哪种疾病门静脉高压最显著？（）

A.原发性胆汁性肝硬化

B.酒精性肝硬化

C.结节性肝硬化

D.血吸虫病性肝硬化

E.营养不良性肝硬化

以下肾上腺素能受体阻断药物中具有内在拟交感活性的药物是

A．普萘洛尔

B．吲哚洛尔

C．噻吗洛尔

D．阿替洛尔

E．美托洛尔

为防止起升机构传动系统断轴而发生物体坠落事故，有些制动器安装在高速轴上或卷筒上。