The last?few?weeks have been enjoyable.

A . Run Disk Cleanup for Programs and Features. B . Run Disk Cleanup for System Restore and Shadow Copies. C . From the System Protection Restore settings, select Turn off System Restore. D . From the System Protection Restore settings, select Only restore previous versions of files.

A . do they B . didn’t they C . don’t they D . did they

A . close B . near C . past D . several

A . You can perform consistent backups only. B . You can perform a complete database backup without shutting down the database instance. C . You can back up data files only when all data files have the same SCN recorded in the control file. D . You can back up only those data files whose headers are frozen by using ALTER TABLESPACE BEGINBACKUP or ALTER DATABASE BEGIN BACKUP command

A . You can perform consistent backups only. B . You can perform a complete database backup without shutting down the database instance. C . You can back up data files only when all data files have the same SCN recorded in the control file. D . You can back up only those data files whose headers are frozen by using ALTER TABLESPACE BEGINBACKUP or ALTER DATABASE BEGIN BACKUP commands.

On the face of it, the deal agreed in the early hours of Thursday June 26th looks promising. Most subsidies linked to specific farm products are, at last, to be broken—the idea is to replace these with a direct payment to farmers, unconnected to particular products. Support prices for several key products, including milk and butter, are to be cut—that should mean European prices eventually falling towards the world market level. Cutting the link between subsidy and production was the main objective of proposals put forward by Mr. Fischler, which had formed the starting point for the negotiations. The CAP is hugely unpopular around the world. It subsidises European farmers to such an extent that they can undercut farmers from poor countries, who also face trade barriers that largely exclude them from the potentially lucrative European market. Farm trade is also a key feature of the Doha round of trade talks, launched under the auspices of the World Trade Organisation (WTO) in November 2001. Developing countries have lined up alongside a number of industrial countries to demand an end to the massive subsidies Europe pays its farmers. Several Doha deadlines have already been missed because of the EU's intransigence, and the survival of the talks will be at risk if no progress is made by September, when the world's trade ministers meet in Cancun, Mexico. But now even the French seem to have gone along with the deal hammered out in Luxembourg. Up to a point, anyway. The package of measures gives the green light for the most eager reformers to move fast to implement the changes within their own countries. But there is an escape clause of sorts for the French and other reform-averse nations. They can delay implementation for up to two years. There is also a suggestion that the reforms might not apply where there is a chance that they would lead to a reduction in land under cultivation. These let-outs are potentially damaging for Europe's negotiators in the Doha round. They could significantly reduce the cost savings that the reforms might otherwise generate and, in turn, keep European expenditure on farm support unacceptably high by world standards. More generally, the escape clauses could undermine the reforms by encouraging the suspicion that the new package will not deliver the changes that its supporters claim. Close analysis of what is inevitably a very complicated package might confirm the sceptics' fears. The deal agreed on Thursday looks promising in that ______. A．European farm ministers finally reached a consensus B．the link between farm products and subsidies is removed C．farmers would definitely accept the direct payment to them D．European farm products will reach a lower price level than the world

A．family B．home C．household D．house

W: If you have your receipt, I can give you credit for the purchase. But I can't repay you. Q: Where did the conversation probably take place？ (18) A．In a restaurant. B．In a department store. C．In a private home. D．In an art supply shop.

B．About one month with the word processor first, and a two-month, part-time period with the computer use. C．About two months with computer first, and a one-month, part-time period with the word processor later. D．About a two-month, part-time period with the word processor and computer.

37__________ 查看材料 ？？

A、visit B、am visiting C、visited D、will visit

A、and B、so C、but D、or

The most spectacular pictures so far have been provided by Mars Express, the European Space Agency's contribution to the fleet. On January 28th this reached its final working orbit (which takes it over both poles, and thus allows it to see the whole of Mars over the course of a few days as the planet revolves beneath it). It has, however, been sending back data since shortly after it arrived, and a few days ago its controllers released a series of beautiful photographs, including a stereo image of Valles Marineris, a huge canyon that may have been formed by flowing water. The most scientifically significant result, though, has come from Opportunity, America's second Mars rover. One of Opportunity's cameras has photographed evidence of stratification in nearby rocks. Such stratification indicates that the rocks concerned are sedimentary. The layers could be repeated wind-blown deposits, or consist of ash from successive volcanic eruptions. But the terrestrial rocks they most resemble are ones that have formed under water. The reason everyone is getting so excited is because there is a widespread assumption that any form. of life which might dwell on Mars would need liquid water to live—or, even if it could now subsist by extracting moisture from ice, would have needed liquid water to evolve to that stage. Mars has seen more probes launched towards it than all of the other planets put together precisely because of this hope that it might harbour life. So there is a lot riding on the answer—not least the funding of future missions. Besides its scientific significance, the success of Opportunity has also helped to distract attention from the sudden refusal of Spirit, the first American rover to arrive on Mars, to talk to its controllers. This craft had tentatively, but successfully, nosed its way off its landing platform, and was about to drill its way into a nearby rock prior to doing a spot of chemical analysis, when it went silent. However, the engineers at NASA, America's space agency, are nothing if not resourceful, and they have a good record of carrying out running repairs on spacecraft that are millions of kilometres away. In the case of Spirit, they think that one of the craft's memory chips has got cluttered up with files created on the journey to Mars. That caused another chip, which manages the first, to throw a wobbly and to keep rebooting the computer. They are currently testing this idea by loading a diagnostic program on to the computer. In addition, as a precaution, they have deleted excess files from the equivalent memory chip on Opportunity. Spirit's spirits may thus revive. As to the failures, the Japanese abandoned their fly-by craft Nozomi in December, and the British team in charge of Beagle 2, which is presumed to have landed on December 25th but from which no signal has been received, also seems to have called it quits. Still, a 40460% success rate (depending on whether Spirit is brought back into commission) is not bad by the historical standards of missions to Mars. Now, the real science begins. Mars Express is mentioned because______. A．it has been sending data back to the Earth B．it illustrates Europe's contribution to the project C．it is the first craft to have ever landed on the Mars D．it can help researchers see the whole of the Mars

A．on B．in C．to D．at

W: Oh, please be serious! I suppose they will change shapes as well. If you want a big car to take all your friends camping, I suppose you'll just be able to snap your fingers and make it happen. Or if you want a sporty two-seater, you could just tell the car what you wanted, and it would do the rest. Is that how it will work？ M: No, I am serious. They have found a way to alter the surface of metals so that they can reflect different colors just by passing a small amount of electricity over them. W: Oh, I see. So anything that touches the outside of the car will get a shock. That sounds lovely. M: It's only a tiny amount of electricity. It wouldn't be enough to shock anybody. W: Well, it sounds pretty difficult to believe. M: Yes, it's quite amazing. The important thing you have to remember is that the color of an object is really just an illusion created by the way light bounces off its surface. Engineers have been able to produce a car that changes colors at the touch of a button by slightly rearranging the position of the particles on the surface of the metal. W: It sounds so amazing. But I guess it could be possible. M: It is possible today. The only problem is that it is very expensive. To produce a car with a surface that changed colors would cost almost twice as much as what a regular car costs. For that much money you could just by the car and have it repainted twenty times, so it's not very practical yet. W: Yes, but in other ways it could be more practical. If you took your car to be painted twenty times, it would use quite a bit of polluting chemicals, and it would take a long time. M: You're right there, but how many people really get their car repainted that many time？ W: Hmm, I suppose you're right, but I sure would love to have my car match my outfit every day. (26) A．She is impressed. B．She is doubtful. C．She is shocked. D．She is surprised.

(20)

A．after a few weeks’ time B．in a few weeks’ time C．after a few weeks’ time D．in a few week’s time

A．to have stolen B．to be stolen C．having been stolen D．to have been stolen