Since it is already midnight. we_______.

A . ’SQL ALTER DATABASE OPEN’； B . SQL ALTER DATABASE ’OPEN’； C . OPEN DATABASE； D . DATABASE OPEN

A . lighter than air B . heavier than air C . a yellow gas that is easily recognized D . mildly toxic

A . Reload the operating system and select 32 bit kernel on initial install. B . Repoint the symbolic link of /unix to unix_mp. Perform a bosboot and reboot the partition. C . Use the SMIT menu to select 32 bit versus the 64 bit kernel. Select 32 bits and reboot the partition. D . Go into SMIT and select 32 bit kernel. Run the /usr/sbin/bootinfo -K command， and ensure that the kernel has been changed.

A . had taken place B . was taken place C . tookplace D . was taking place

W: In the Convention Hall on the second floor, sir. M: Thanks. Also, do you know when Professor Ferguson's presentation is going to be？ I hope I haven't missed it! W: One of the volunteers at that desk will be able to tell you. What does the man want to know？ A．When a meeting will start. B．Whether there are enough chairs. C．How to go to the second floor. D．Where an event is being held.

In my fridgeless fifties childhood, 1 was fed well and healthy. The milkman came every day, the grocer, the butcher (肉商), the baker, and the ice-cream man delivered two or three times each week. The Sunday meat would last until Wednesday and surplus(剩余) bread and milk became all kinds of cakes. Nothing was wasted, and we were never troubled by rotten food. Thirty years on food deliveries have ceased, fresh vegetables are almost unobtainable in the country. The invention of the fridge contributed comparatively little to the art of food preservation. Many well-tried techniques already existed -- natural cooling, drying, smoking, salting, sugaring, bottling... What refrigeration did promote was marketing --- marketing hardware and electricity, marketing soft drinks, marketing dead bodies of animals around the world in search of a good price. So most of the world's fridges are to be found, not in the tropics where they might prove useful, but in the rich countries with mild temperatures where they are climatically almost unnecessary. Every winter, millions of fridges hum away continuously, and at vast expense, busily maintaining an artificially-cooled space inside an artificially-heated house -- while outside, nature provides the desired temperature free of charge. The fridge's effect upon the environment has been evident, while its contribution to human happiness has been not important. If you don't believe me, try it yourself, invest in a food cabinet and mm off your fridge next winter. You may not eat the hamburgers, but at least you'll get rid of that terrible hum. The statement "In my fridgeless fifties childhood, I was fed well and healthily." suggests that A．the author was well-fed and healthy even without a fridge in his fifties. B．the author was not accustomed to fridges even in his fifties. C．there was no fridge in the author's home in the 1950s. D．the fridge was in its early stage of development in the 1950s.

B．Healthy lifestyle. and a balanced diet are quite useful for people to recover from sub-health. C．More than half of sub-healthy people are middle-aged or old people. D．People should eat more to become stronger in order to avoid sub-health.

A. place B. point C. reason D. way

A．The House of Commons B．The House of Lords C．The Cabinet D．The Privy Council

A.place B.point C.reason D.way

A．unless B．since C．if D．because

A．their symptoms will get worse． B．the blood sugar level will go up． C．the desired effect cannot be achieved． D．their condition will be out of control．

A．It will snow for a long time. B．People are ready for snow. C．It has been snowing for some time. D．The snow is disappearing.

b.But since the Sun has no solid surface, it is hard to tell where the atmosphere ends and the main body of the Sun begins. c.Starting at the outside and going down into the Sun, the zones are the corona, chromosphere, photosphere, convection zone, and finally the core. d.Solar astronomers know that the Sun is divided into five layers or zones. e.The first three zones are regarded as the Sun’s atmosphere. The following sentences are from a paragraph, but they are in the wrong order.Choose the correct order from A, B, C, and D.______ A、c-d-e-b-a B、d-b-a-c-e C、c-e-d-b-a D、d-c-e-b-a

A．come out B．come up C．show up D．turn out

The performance of the US labour market in the late 1990s is as much a feature of the puzzlingly benign so-called New Economy. For the past four years the US has enjoyed an average annual growth rate of 4 percent— up from an average of about 3 percent in the previous decade. Productivity improvements account for about two-thirds of that elevated output, as workers have increased their output per hour. The rest has come from a rapid increase in the total number of workers, what economists call labour inputs. There has been a surge in new jobs—7m in the last three years—that has pushed the unemployment rate down into the uncharted territory of barely 4 percent. Recent economic history suggests that, whenever unemployment has gone this low, the scramble for workers becomes so difficult that wages are rapidly bid up, and an inflationary spiral follows. But in the US in the past five years, wage growth has been muted. In the last year, total employee compensation in the private sector rose by just 3.3 percent, almost unchanged on the figure three years ago, when the unemployment rate was 5.4 percent. "In some ways it's a bigger puzzle than the productivity puzzle," says Paul Krugman, professor of economics at the Massachusetts Institute of Technology. "How can we have such a low unemployment rate without an explosion of wages？" A number of factors appear to have contributed. In their search for workers to fill positions, companies have reached out to places they have not looked at in the past. As a result, more people are working than ever. The proportion of the population in employment reached a record high this year of more than 64 percent. This expanded labour supply helps explain why companies have kept the lid on pay over the last few years. The availability of new sources of labour—women, retirees, college students among them—means companies may not have to give big pay rises to hire new workers. It also helps explain why the benefits of the New Economy are not always widely felt—more people seem to be working longer hours than ever. But an expanded labour supply can only explain part of what has changed in the US in recent years. After all, unemployment—the proportion of the labour force out of work—has still declined, indicating that companies have drawn new workers not just from the pool of those not previously in the labour force, but also from the unemployed. And yet still wage costs have remained muted. One possible explanation is that companies have become more flexible in how they pay. "At Newfield, we use a much broader variety of means to reward workers, including performance related pay, year-end bonuses, and extended contracts," says Mr. Ostop. Why does Connecticut have the tightest labour market in the U. S. ？

是 否

A．endorsed B．enhanced C．occurred D．related

A．revise B．implement C．review D．improve

A. took part in B.take part in C.will take part in D.have taken part in