大容量发电机为什么要采用100%定子接地保护？

按要求改写句子。

1. —Did they meet John? (作肯定回答)

    —Yes, they          ．

2. I dropped my ice cream. (改为一般疑问句)

    ___  _ you _____ your ice cream?

3. She had sandwiches for lunch. (对画线部分提问)

                        she           for lunch?

4. —Did Lingling like fast food? (作否定回答)

    —No, ____          ．

5. Mrs Smart wants half a kilo of cheese.(对画线部分提问)

                         cheese does Mrs Smart want?

相对于数据库系统，文件系统的主要缺陷有数据关联差、数据不一致性和( )。

A．可重用性差

B．安全性差

C．非持久性

D．冗余性

材料一： 2月14日，2011年度国家科学技术奖励大会在北京人民大会堂隆重举行。中 * * * * 、国家 * * 、中央军委 * * 胡 * * 向获得2011年度国家最高科学技术奖的中国科学院院士谢家麟和中国科学院院士、中国工程院院士吴良镛颁奖。

材料二：神舟八号飞船于北京时间11月1日发射升空，并顺利进入预定轨道。飞船将在两天内与天宫一号进行首次空间交会对接。 2月25日，我国在西昌卫星发射中心用长征三号丙运载火箭，成功将第十一颗北斗导航卫星送入太空预定转移轨道。

材料三：政府工作报告指出：大力发展科技、教育事业，培养高素质的人才队伍，是国家强盛、民族复兴的必由之路。

（1）上述材料反映了哪些道理？（4分）

（2）运用所学思想品德知识，分析说明我国大力发展科技、教育事业的必要性。（8分）

　　Why doesn’t the unemployment rate ever reach zero? Economists, who generally believe that supply tends to meet demand, have long thought about this question. Even in good times, i.e. not now, there are people who can’t find work. And even in bad times, i.e. now, there are job openings. With over 14 million people out of work and looking for a job, you would think every available job would be filled. But that’s not the case. Not now and not ever.

　　On Monday, the Nobel Prize committee awarded the prize for economics to the three scholars who have done the most to explain this phenomenon. Two of the winners are Americans, Peter Diamond of MIT and Dale Mortensen of Northwestern. The third winner is Christopher Pissarides, who teaches at the London School of Economics and was born on Cyprus.

　　Like most of economics, what they have found about why the jobless and ready-employers don’t find each other seems obvious. You have to find out there is job opening you are interested in. Employers need to get resumes （简历）. It takes a while for both employers and employees to make the decision that this is what they want. And these guys came up with a frame-work to study the problem of why people stay unemployed longer than they should and what can be done about it.

　　So what would today’s Nobel Prize winners do to solve the current problem of the unemployed? And does the awarding of the prize contribute to the politicians’ lowering joblessness?

　　Speaking from his north London home, Pissarides told The Associated Press the announcement came as “a complete surprise” though his work had already helped shape thinking on both sides of the Atlantic.

　　For example, the New Deal for Young People, a British government policy aimed at getting 18-24-year-olds back on the job market after long periods of unemployment, “is very much based on our work,” he said.

　　“One of the key things we found is that it is important to make sure that people do not stay unemployed too long so they don’t lose their feel for the labor force,” Pissarides told reporters in London. “The ways of dealing with this need not be expensive training – it could be as simple as providing work experience.”

小题1:According to the writer, which is true about finding jobs?

A．It is always difficult to find a job.

B．Everyone can find a job in good times.

C．Contrary to popular belief, it is easier to find a job in bad times.

D．It is possible to find a job even in times as bad as now.小题2: What is it that leads to their winning the prize?

A．They have found the reason for unemployment.

B．They have put forward a set of ideas to deal with unemployment.

C．They have found out why people don’t want to be employed.

D．They have long studied the problem of unemployment.小题3:Which of the following statements is NOT true according to the passage?

A．Pissarides thinks his work surprising.

B．The work of Pissarides has influenced many economists.

C．Some of the winners’ ideas have been put into practice.

D．It is probable that unemployed young people in Britain benefit from Pissarides’ work.小题4: According to Pissarides, _________ is effrctive in dealing with unemployment.

A．spending large sums of money on training

B．teaching some knowledge of economics

C．providing work experience

D．keeping people unemployed for some time

报关单位申报出料加工货物复进口时应向海关提交出料加工登记手册、进口货物报关单、货运单据及其他海关需要的报关单证；海关对出料加工复进口货物，以境外加工费、材料费、复运进境的运输及其相关费用及其保险费审定完税价格后，征收进口关税和进口代征税。( )