该病当与下列哪些疾病相鉴别：A．动脉硬化闭塞症 B．大动脉炎 C．静脉曲张 D．糖尿

If you want to find out a piece of information about anything, the best place to search for it is Wikipedia. This online encyclopedia(百科全书) is written by thousands of people around the world. Anyone can add or change the information if he or she finds it not correct or not well written. In this way, people who know a lot about a certain subject can write about it even if they are not university professors.

What is more, Wikipedia includes articles written in about 235 languages. This fact makes it one of the few websites on the Internet that are truly international. It was started in 2001 by Larry Sanger and Jimmy Wales, as a free online English-language encyclopedia project. By April 2008 over 10 million articles had been put on Wikipedia. A quarter of the articles in English. Wikipedia is also a place where people can find the latest news.

However, Wikipedia has its own problems. There have been many complaints that some of the information on Wikipedia is not accurate and some important subjects are not included. This has led to arguments between the writers of articles. The people running Wikipedia say that the accuracy of the information is improving and that it is one of the top 20 visited websites on the Internet.

So, if you are looking for some information, why not try Wikipedia?

小题1:Wikipedia is ___________.

A．a computer game

B．an online magazine

C．a free university

D．a website encyclopedia小题2:People who write on Wikipedia__________.

A．know much about a certain subject

B．likes writing different stories

C．can’t be university professors

D．are usually famous scientists小题3:The underlined word “accurate” means __________.

A．错误的

B．准确的

C．有条理的

D．逻辑的小题4:Which is TRUE according to the passage?  

A．Wikipedia includes articles written in about 253 languages.

B．People can find information about different subjects on Wikipedia.

C．Wikipedia is the only truly international website on the Internet.

D．Half of the articles on Wikipedia are written in English.

仪表引压管路的强度和严密性的压力试验，一般应为设计压力的（）。

A、1.5倍

B、1.15倍

C、1.25倍

D、液体试压时为1.25倍，气体试压时为1.15倍

适用环境智能组件柜应达到户外IP54、户内IP40防护等级的要求。智能组件柜运行环境应与宿主设备一致，其内部环境应能满足各IED对运行环境的要求，必要时采用温控、湿控、防凝露及电磁屏蔽等技术措施。

最后喊出价

工程质量等级分为哪几种？应按什么进行逐级评定？