It's already two o'clock in the afternoon and you have( ) much work to do( )go out for lunch.

You are implementing a Windows Communication Foundation (WCF) client application that consumes the ICatalog and lCatalog2 service interfaces.You need to ensure that the client discovers services implementing these interfaces. The services may already be online or may come online within a 30 second time limit. How should you use WCF Discovery to accomplish this？（）

A. Create one FindCriteria object for each interface and set the Duration of each FindCriteria to 30 seconds. Call the FindAsync method of the DiscoveryClient class twice, one time for each of the FindCriteria objects, to search for the services.

B. Create one FindCriteria object for each interface and set the Duration of each FindCnteria to two seconds. Create a loop that calls the Find method of the DiscoveryClient class to search for the services. Within each loop iteration, call the Find method of the DiscoveryClient class once for each of the FindCriteria objects. Run the loop until a service is found or 30 seconds pass.

C. Create a single FindCriteria object and add both interfaces to its ContractTypeNames collection. Set the criteria‘s Duration to two seconds. Create a loop that calls the Find method of the DiscoveryClient class to search for the services. Within each loop iteration, call the Find method of the DiscoveryClient class to search for the services Run the loop until a service is found or 30 seconds pass.

D. Create a single FindCritera object and add both interfaces to the ContractTypeNames collection. Set the Duration to 30 seconds and use the FindAsync method of the DiscoveryClient class to search for the services.

SECTION C NEWS BROADCAST

Directions: In this section you will hear everything ONCE ONLY. Listen carefully and then answer the questions that follow. At the end of each news item, you will be given 10 seconds to answer the questions.

听力原文： The cancellation of the 16-day flight means that the crew and scientists on the ground are pursuing only their most important experiments in the few remaining hours left before the shuttle laboratory is closed. The US sapce agency NASA decided Sunday to bring the orbiter home 12 days early because of fears of weakened power generator could explode. The generator has been turned off, leaving the shuttle with only two thirds of its normal power supply. To conserve electricity for the experiments the crew is working in dimmer lighting than normal and has turned off all unessential equipment. NASA says the two remaining generators are sufficient for Tuesday's landing, but had nevertheless ordered the astronauts to study emergency procedures in case another fails. The shuttle team has expressed its disappointment at the curtailment of the science mission, and says enough data have already been collected in the materials, combustion and biological experiments to push science further ahead. The scientist' goal is to complete the experiments on a later shuttle flight. David Batlery, VOA news, Washington.

Why did NASA decide to bring the shuttle home earlier？

A．The laboratory was closed.

B．The generator was turned off.

C．The power generator might explode.

D．Electricity was going to run out.

at fly the world's busiest air route between London and Paris have a flight on their hands.

The Eurostar train service linking the UK and French capitals via the Channel Tunnel is winning customers in increasing numbers. In late May, it carried its one millionth passenger, having run only a limited service between London, Paris and Brussels since November 1994, starting with two trains a day in each direction to Paris and Brussels. By 1997, the company believes that it will be carrying ten million passengers a year, and continue to grow from there.

From July, Eurostar steps its service to nine trains each way between London and Paris, and five between London and Brussels. Each train carries almost 800 passengers, 210 of them in first class.

The airlines estimate that they will initially lose around 15%-20% of their London-Paris traffic to the railways once Eurostar starts a full service later this year (1995), with 15 trains a day each way. A similar service will start to Brussels. The damage will be limited, however, the airlines believe, with passenger numbers returning to previous levels within two to three years.

In the short term, the damage caused by the 1 million people-level traveling between London and Paris and Brussels on Eurostar trains means that some air services are already suffering. Some of the major carders say that their passenger numbers are down by less than 5% and point to their rivals-particularly Air France-as having suffered the problems. On the Brussels route, the railway company had less success, and the airlines report anything from around a 5% drop to no visible decline in traffic.

The airlines' optimism on returning traffic levels is based on historical precedent. British Midland, for example, points to its experience on Heathrow Leeds Bradford service which saw passenger numbers fold by 15% when British Rail electrified and modernized the railway line between London and Yorkshire. Two years later, travel had risen between the two destinations to the point where the airline was carrying record numbers of passengers.

Airlines are confident in the fact that ______.

A．they are more powerful than other European airlines

B．their total loss won't go beyond a drop of 5% passengers

C．their traffic levels will return in 2-3 years

D．traveling by rail can never catch up with traveling by air

coffee giant Starbucks thinks【C2】______will be the right blend for its business in China. "I believe strongly that China is going to be the second largest market in the world for Starbucks. And we are just getting【C3】______" "Hello, welcome to Starbucks. " Starbucks has already been in China for over a decade. But with financial troubles emerging back home, Starbucks chief Howard Schultz has come here, rallying(重新召集, 激励)employees and decorating stores, hoping to【C4】______the steaming Chinese【C5】______"Weve got 900 stores in the UK, 800 stores in Japan. China clearly is gonna have thousands of stores. " "But this is a【C6】______drinking culture. " "Well, it is. And 10 years ago, people said when Starbucks【C7】______China, they were not gonna succeed because everyone drank tea. Thats not exactly whats taking place. Whats happened is weve opened up Starbucks in China. The Chinese【C8】______has embraced(接受, 拥护)Starbucks, is drinking tons of coffee.【C9】______we are also offering tea. " Tea and other【C10】______treats have helped boost sales here.

【C1】

A．conflict

B．gap

C．mixture

D．difference

of social demands. However, Mexico will still be far from the "aging societies" that will most likely prevail (占优势 ) in the industrialized countries. In less than 25 years, the country will have to add almost as much infrastructure as it has already built up to now, simply to maintain services and production at the current levels. This will be a tremendous challenge, although a similar one was faced successfully in the recent past, when available infrastructure was doubled in two decades or so. It is no wonder that much has been said about the need to reduce or preferably halt Mexico's population control which is taken for granted as both good and necessary. It has also gained supporters in the developing world, and Mexico is no exception. But the arguments about population are complicated, as the following discussion illustrates. Even if Mexico's population reaches 125 million by the year 2010, its population density is still smaller than the 1985 population density of some 50 countries. By international standards Mexico will still not be overpopulated by the year 2010. If wealth is generated by people, the more individuals there are, the greater the wealth that potentially could be generated. Why should Mexico control its population at density levels below those of the richer countries if more population represents the possibility of generating more wealth？ On the other hand, it is often pointed out that once sustainability(支撑力) limits are near or are reached, there are decreasing productivity gains (or,perhaps more accurately, increasing productive losses) , and people become a cost rather than an asset. If we assume that there are sustainability limits and that we are close to reaching these limits at a world level, then it is appropriate to check population growth. According to the passage, the population argument is focused on_______.

A.whether more people are a property or a cost

B.whether Mexico should control its population growth or not

C.whether the density of population in Mexico is large or small

D.what the standard international sustainability limit is

omplicated its development that no nuclear plants have been ordered or built here in 12 years.

The greatest fear of nuclear power opponents has always been a reactor “melt down”. Today, the chances of a meltdown that would threatenUSApublic health are testing new reactors that rely not on human judgment to shut them down but on the laws of nature. Now General Electric is already building two advanced reactors in. But don't expect them even on USA shores unless things change in Washington.

The procedure for licensing nuclear power plants is a bad dream. Any time during, or even after, construction, an objection by any group or individual can bring everything to a halt while the matter is investigated or taken to court. Meanwhile, the builder must add nice, but not necessary improvements, some of which force him to knock down walls and start over. In every case when a plant has been opposed, the Nuclear Regulation Commission has ultimately granted a license to construct or operate. But the victory often costs so much that the utility ends up abandoning the plant anyway.

A case in point is the Shoreham plant onNew York'sLong Island. Shoreham was a virtual twin to the Millstone plant in, both ordered in the mid 60s '. Millstone, complete for $ 101 million, has been generating electricity for two decades. Shoreham, however, was singled out by antinuclear activists who, by sending in endless protests, drove the cost over $5 billion and delayed its use for many years.

Shoreham finally won its operation license. But the plant has never produced a watt power. Governor Mario Cuomo, an opponent of a Shoreharn start up, used his power to force's publicities commission to accept the following settlement: the power company could pass the cost of Shoreham along to its consumers only if it agreed not to operate the plant. Today, a perfectly good facility, capable of servicing hundreds of thousands of homes, sits rusting.

96.The author's attitude towards the development of nuclear power is _____.

A.negative

B.neutral

C.positive

D.questioning

97.What has made the procedure for licensing nuclear plants a bad dream_____

A.The inefficiency of the Nuclear Regulation Commission.

B.The enormous cost of construction and operation.

C.The length of time it takes to make investigations.

D.The objection of the opponents of nuclear power.

98.It can be inferred from Paragraph 2 that _____.

A.there are not enough safety measures in theUSAfor running new nuclear power plants

B.it is not technical difficulties that prevent the building of nuclear power plants in theUSA

C.there are already more nuclear power plants than necessary in theUSA

D.the American government will not allow Japanese nuclear reactors to be installed in theUSA

99.Governor Mario Cuomo's chief intention in proposing the settlement was to _____.

A.stop the Shoreham plant from going into operation

B.urge the power company to further increase its power supply

C.permit the Shoreham plant to operate under certain conditions

D.help the power company to solve its financial problems

100.From which sentence of the article can you see the attitude of the author and that of Governor Mario Cuomo respectively_____

A.the 2nd sentence in the first paragraph, the 3rd sentence in the last paragraph.

B.the last sentence, the last sentence but one

C.the last sentence in para.2, last sentence but one.

D.the last sentence in para.3, the 3rd sentence in the fifth paragraph.

ion of labor and to explain part of its advantages. He gives as an example the process by which pins were made in England.

"One man draws out the wire, another strengthens it, a third cuts it, a fourth points it, a fifth grinds it at the top to prepare it to receive the head. To make the head requires two or three distinct operations. To put it on is a separate operation, to polish the pins is another. And the important business of making pins is, in this manner, divided into about eighteen distinct operations, which in some factories are all performed by different people, though in others the same man will sometimes perform. two or three of them."

Ten men, Smith said, in this way, turned out twelve pounds of pins a day or about 4 800 pins a piece. But if all of them had worked separately and independently without division of labor, they certainly could not turn out any pin, each of them have made twenty pins in a day and perhaps not even one.

There can be no doubt that division of labor is an efficient way of organizing work. Fewer people can make more pins. Adam Smith saw this but he also took it for granted that division of labor is in itself responsible for economic growth and development and that it accounts for the difference between expanding economies and those that stand still. But division of labor adds nothing new; it only enables people to produce, more of what they already have.

According to the passage, Adam Smith was the first person to______.

A．take advantage of the division of labor

B．explain the causes of the division of labor

C．understand the effects of the division of labor

D．introduce the division of labor into England

Jim ______already ______in this school for two years.

A、was; studying

B、will; study

C、has; studied

D、are; studying

le of 56 works by Damien Hirst, Beautiful Inside My Head Forever, at Sotheby's in London on September 15th 2008. All but two pieces sold, fetching more than ￡70m, a record for a sale by a single artist. It was a last victory. As the auctioneer called out bids, in New York one of the oldest banks on Wall Street, Lehman Brothers, filed for bankruptcy.

The world art market had already been losing momentum for a while after rising bewilderingly since 2003. At its peak in 2007 it was worth some $65 billion, reckons Clare McAndrew, founder of Arts Economics , a research firm—double the figure five years earlier. Since then it may have come down to $50 billion. But the market generates interest far beyond its size because it brings together great wealth, enormous egos, greed, passion and controversy in a way matched by few other industries.

In the weeks and months that followed Mr Hirst's sale, spending of any sort became deeply unfashionable. In the art world that meant collectors stayed away from galleries and salerooms. Sales of contemporary art fell by two-thirds, and in the most overheated sector, they were down by nearly 90% in the year to November 2008. Within weeks the world's two biggest auction houses, Sotheby's and Christie's, had to pay out nearly $200m in guarantees to clients who had placed works for sale with them.

The current downturn in the art market is the worst since the Japanese stopped buying Impressionists at the end of 1989. This time experts reckon that prices are about 40% down on their peak on average, though some have been far more fluctuant. But Edward Dolman, Christie's chief executive, says: " I'm pretty confident we're at the bottom. "

What makes this slump different from the last, he says, is that there are still buyers in the market. Almost everyone who was interviewed for this special report said that the biggest problem at the moment is not a lack of demand but a lack of good work to sell. The three Ds—death, debt and divorce—still deliver works of art to the market. But anyone who does not have to sell is keeping away, waiting for confidence to return.

In the first paragraph, Damien Hirst's sale was referred to as "a last victory" because_________.

A．the art market had witnessed a succession of victories

B．the auctioneer finally got the two pieces at the highest bids

C．Beautiful Inside My Head Forever won over all masterpieces

D．it was successfully made just before the world financial crisis

to have such bizarre but vivid storylines.The findings deal a blow to the Freudian interpretation of dreams but leave open the possibility that some useful personal meaning can be extracted from them.The main purpose of dreams,however,the authors of the new study believe,is to test whether the brain has had enough sleep and,if so,to wake it up.The new results show that in sleep,the frontal lobes of the brain are shut down.In the absence of activity in these lobes,which integrate other information and make sense of the outside world,the sleeping brain's images are driven by its emotional centers.The content of these dreams may be vivid and gripping but lacks coherence.The new results are consistent with the theory that memories are consolidated during sleep.From the pattern of activity that was recorded,"it seems that memories already in the system are being read out and filed in terms of their emotional salience,with is an extremely interesting idea,"said Dr.J.Allan Hobson of Harvard Medical School.The new measurements were made by applying the technique known as PET scanning to sleeping subjects.The biologists focused on the two forms of sleep,known as slow-wave sleep and REM sleep.REM sleep,so named because of the rapid eyeball movements that occur then,takes palce about four times during the night and is the phase from which the most vivid dreams are recalled.

问题：Accoding to this study,the purpose of the dreams is to ()

A、test if the brain has had enough sleep

B、show the dreams bizarre but vivid storylines

C、prove the correctness of the Freudian interpretation of dreams

D、extract some useful personal meanings from the dreams

A.HCl

B.ClO

C.OClO

D.ClONO2