The Product Data Center has been servicing the Str...

YouworkasadatabaseadministratorforSupportcenter.cn.Inyourproductiondatabase，thesizeofDatabaseBufferCacheneedstobeincreasedimmediatelyforthecurrentaswellasfutureinstancesofthedatabase.TheOracleinstancehasbeenconfiguredtoaccommodateanychangesinthesizeofthememorystructures.Atthisisproductiondatabase，youwanttoaccomplishthistaskwithnoimpactontheuser’sconnections.Whichactivitymustyouhavecompletedbeforeaccomplishingthistask？（）

A.Youmusthavestartedthedatabaseinstanceinrestrictedmode.

B.YoumusthavestartedthedatabaseinstanceinNORMALmode.

C.Youmusthavestartedthedatabaseinstancewithserverparameterfile.

D.Youmusthavestartedthedatabaseinstancebutmustnothavemounted.

E.Youmusthavestartedthedatabaseinstancebutmustnothaveopened.

In the United States, the biggest change in spending has been in the amount spent on food, which has decreased from 46% of the total family budget in 1901 to 19% of present day totals. This is due to the fact that people are now able to buy more and better foods at lower prices. As a result of the growth in fast food restaurants (for example, McDonald's or KFC), more people are also eating out. Thus about 30% of today's food budget goes on meals eaten outside the home while a hundred years ago it was only 3%.

At the beginning of the 20th century, few people owned their homes (only around 19% of working families) or cars (at about ＄ 1,000 per ear this was well above the average family income of ＄ 650 per year), as most people were unable to borrow money. But there was a rapid rise in both home and car ownership during the mid-1900s.

Free time increased considerably following the shortening of the working week, i.e. from six days to five, and from 10 hours to eight hours a day. In fact, the working clay couldn't be too long, otherwise people wouldn't have the time to spend their money. The amount of a family's budget spent on outside entertainment, such as parties, films and concerts has increased from just under 6% in Ford's day to about 9% today. On the other hand, we spend only a quarter of what our great-grand-parents paid for reading materials.

It is difficult to see how our spending patterns may change in the future. We already know that our population is aging and this will have an effect on the amount of money we spend on medicalcare.

What is the subject discussed in the text?

A．Increase in family income.

B．Changes in family planning.

C．Changing patterns in spending.

D．Decrease in food demand.

The housing market has been for two years propping up consumers&39; spirits while the rest of the economy lies exhausted on the floor, still trying to straggle to its feet. According to the National Association of Realtors, the national median existing-home price ended the year at $ 164, 000, up 7.1 percent from 2001. That&39;s the strongest annual increase since 1980.

Although residential real estate activity makes up less than 8% of total U. S. GDP, a housing market like this one can make the difference between positive and negative growth. Most significantly, consumer spending is 66% of GDP, and the purchase of a new home tends to have an "umbrella effect" on the homeowner&39;s spending as he has to stock it with a washer/dryer, a new big-screen TV, and maybe a swing set for the yard.

The main factor in housing&39;s continued strength is a classic economic example of zero-sum boom: the persistent weakness everywhere else. As the 2003 recovery continues to be more forecast than reality. Falling stock prices raised investor appeal for U. S. Treasury Bonds, which in turn, allowed most interest rates to drift even lower. But there are not many signs that there&39;s a bubble ready to burst.

December&39;s new record in housing starts, for example, was nicely matched by the new record in new home sales. If you build it, they will buy and even if an economic pickup starts to reduce housing&39;s relative attractiveness, there&39;s no reason why modest economic growth and improved consumer mood can&39;t help sustaining housing&39;s strength. "The momentum gained from low mortgage interest rates will carry strong home sales into 2003, with an improving economy offsetting modestly higher mortgage interest rates as the year progresses," said David Lereah, chief economist at the National Association of Realtors.

Just as housing has taken up much of the economic slack for the past two years, both as a comforting investment for fretting consumers and a driver of consumer spending itself, a big bump elsewhere in the economy in 2003 could be housing&39;s downfall. If stocks roar back this spring, capital inflows could steal from the bond market, pushing up long-term interest rates. Or Alan Greenspan and the Fed could do the same to short-term rates, as a way to hit the brakes on a recovery that is heating up too fast. In other words, if every-thing possible goes wrong for housing, homeowners should have plenty to compensate them in terms of job security and income hikes.

The author draws a contrast between the housing market and the rest of the economy to show________

A.the role of real estate activity

B.the statistics on home prices

C.the boom of housing market

D.the degree of consumer spirits

The recovery of the US economy during the first quarter of this year has been so spectacular that it is creating a new set of risks for financial markets. The great new risks now facing the US economy center on monetary policy and the oil market. The current federal funds interest rate of only 1.75 percent has clearly become unsustainable in view of the economy's resilience. The Federal Reserve will raise interest rates by at least 0.25 percentage points during the second quarter and could increase short-term interest rates to at least 3 percent before the antumn-the level they were at before September 11.

Such tightening would probably cause refinancing to slump to about ＄300 billion at annual rates late this year, which would eliminate capital gains as a prop for consumer spending. Rising interest rates could also damp the rally likely to occur in the equity market as corporate profits recover. If investment spending fails to revive, the economy's annual growth rate could slide back to the 2～3 percent.

The oil price is also a big risk, mainly because the Bush administration appears determined to attack Iraq. The probability of war could easily push the oil price back into the ＄35～＄40 a barrel range for at least a few months. In effect, that would impose a big new tax on consumer spending and corporate profits. The prospect of monetary tightening and a sharp increase in the oil price suggests that late 2002 and early 2003 could be a period of great volatility for the US economy.

The dog has always been considered man' a best friend. Always noted for being particularly faithful in watching over children, he also has his place by fireside, in the cow pasture, on the sheep range, and beside the hunter in forest or blind. He is easy to train, works hard, and often performs astonishing feats. And in the frozen polar regions he was once the principal motive power, before being largely displaced by the plane and helicopter

Because he howls or whines( 哀鸣) in the presence of impending (即将发生的) death, the dog was once thought to have supernatural powers and believed to be capable of seeing gods and ghosts invisible to people. Actually, the basis for these beliefs lies in the dog's sensitivity to people's feelings and his superior hearing ability and sense of smell, which enable him to detect signs hidden from human observation. His record of saving lives is outstanding, for he often gives warning of fire and other dangers not noticed by his master

The dog, s major contribution, however, has been to medical research. Both his diet and his structure are comparable to those of the human being, and so he has been the su 灼 ect of countless demonstrations and experiments. Open-heart surgery has been made possible largely because of the dog. But his sacrifice has repaid his own species as well by safeguarding it from rabies (狂犬病) ,distemper, and other disease

26. The dog has always been noted for _______

A. protecting children B. assisting shepherds

C. helping hunters D herding a cattle

27. The dog is useful to herders because he is _________

A. loyal B. easily trained

C. hardworking D all of the above

28. The dog probably whines in the presence of death because he can ________

A. see ghosts and spirits

B. give warning of danger

C. sense unhappiness around him

D. perform. astonishing feats

29. The dog has been of most value to people in the development of____________

A a treatment for rabies B. open-heart surgery

C. a cure for distemper D all of the above

30. The article does not say whether the scientists' experiments with dog have

A. benefited animals other than dogs

B. served people

C. helped other dogs

D contributed to medical knowledge

根据短文回答 16～22 题。

The Industrial Age and Employment

The industrial age has been the only period of human history in which most people's work has taken the form. of jobs.The industrial age may now be cominｇ to an end,and some of the changes in work patterns which it brought about may have to be reversed,This seems a daunting(大胆的)thought.But,in fact,it could offer the prospect of a better future for work.Universal employment。as its history shows,has not meant economic freedom。

Employment became widespread when the enclosures of the 17th and 18th centuries made many people dependent on paid work by depriving(剥夺)them of the Use the land.and thus of the means to provide a living for themselves.Then the fact. system;destroyed the cottage industries and removed work from people's homes.Later, as transport improved,first by rail and then by road,people commuted(乘车往返)longer distances to their places of employment until.Eventually, many people's work test all connection with their home lives and the places in which they lived.

Meanwhile employment put women at a disadvantage.In pre—industrial times。men and women had shared the productive work of the household and village Community Now it became customary(惯例的)for the husband to go out to paid employl+1tent,

leaving the unpaid work of the home and family to his wife.Tax and benefit regulations

still assume this norm today,and restrict more flexible sharing of work roles between the Sexes.

It was not only women whose work status suffered.As employment because the dominant form. of work,young people and old people Were excluded—a problem now,as more teenagers become frustrated at school and more retired people want to live active lives.

All this may now have to change.The time has certainly come to switch some efforts and resources away from the utopian(乌托邦的)goal of creating jobs for all.to the urgent practical task of helping many people to manage without full-time jobs.

第 16 题 The established work patterns may be changed with the closing of the industrial age.（ ）

A．Right

B．Wrong

C．Not mentioned