下列不是寒湿腰痛特点的是( )A．腰痛如刺 B．转侧不利，逐渐加重 C．静卧痛不减

短文改错。

     假定英语课上老师要求同桌交换修改作文， 请你修改你同桌写的以下作文。文中共有十处语

言错误， 每句中最多有两处。错误涉及一个单词的增加， 删除， 或修改。

增加：在缺词处加一个漏字符号(∧)，并在下面写出该加的词。

删除：把多余的词用斜线( \ )划掉。 修改：在错的词下划一横线，在该词下面写出改正后的词。

注意： 每处错误及修改均仅限一次;只允许修改10处， 多者从第11处起不计分。

     One day I had happened to find a chatting room in my QQ, there people were chatting in English. I tried

to chat with any of them. To my surprise, I found the oral English of some junior students were better than

me. I asked them for advice but they told me practise more on QQ. So every day after that I would spend one

hour practise my oral English on QQ. Day by day I learned many useful words and expressions. With time

went by, I found that I could even communicate with some college students free.

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依次填入下列各句横线处的词语，恰当的一组是   

(1)无论社会发生怎样的变化，除恶扶善，敬老爱幼的社会公德都不能      

(2)有人认为过分   有时反倒使人感到空虚。

(3)作家群中有不少性情   者，其作品往往反映出浪漫的特点。

(4)他在陌生人面前，总显得特别   

A．背离悠闲奔放拘束

B．违背悠闲奔放拘谨

C．背离清闲豪放拘谨

D．违背清闲豪放拘束

试述电力牵引供电回路？

There can be no doubt that the computer revolution has touched virtually every person in the country in some way or other.

Nor can there be any doubt that it has brought tremendous improvements in productivity and efficiency. 46) Indeed, there are many tasks undertaken by computers that could not be done without them, and we have reached the point that the benefits of computerization are taken for granted.

Having accepted that computers are here to stay, what is the downside 47) The most obvious answer is that because of increased efficiency, less people are needed and the loss of jobs, particularly in the service industries, has been enormous, with more .job losses yet to come.

However, on a more insidious note, many users have not realized how computers have introduced vulnerability to their business. If computers are soon a boon, how do we cope when something goes wrong

Computers have many uses, varying from pure accounting or back-office systems to stock or production control, or computer-aided design or manufacturing. 48) In many instances, manual systems can quickly be introduced to ensure some continuity of the business; but in many cases if the computer is down, so is the business.

The most probable causes of interruption in the past have been accidental damage or breakdown, and these can usually be dealt with expeditiously. However, in recent times the exposure causing most concern to insurers have been theft.

49) Initially the problem was the theft of PCs, and because most of these were based in offices which had not been targeted by thieves in the pasty and thus had relatively poor security, losses mounted very quickly. It was common practice for a thief to make a fresh visit once the equipment had been replaced, as the new equipment would be more attractive due to rapid technological advances. The equipment would usually be covered by insurance, but problems could be experienced if there were no back-ups of date and/or programmes.

The initial reaction by insurers was to step up requests for security improvements, including alarms and devices such as lock-down plates or cables. 50) However, the criminal fraternity quickly came to realize that the real value in the computers is in the chip which is remarkably portable and unidentifiable, so even when caught the police have trouble proving the theft. This led to even greater demands for security, including encapsulation and computer safes.

Indeed, there are many tasks undertaken by computers that could not be done without them, and we have reached the point that the benefits of computerization are taken for granted.

2月份申请了领取失业保险金，期间一直有发放，社保局7月份说新政策暂停了一个月，说从8月份15日以后正常开始发放，可以到目前为止一直没收到，我想问到底从几月份开始发放？