单选题When I was still an architecture student, a teacher told me, "We learn more from buildings that fall down than from buildings that stand up. " What he meant was that construction is as much the result of experience as of theory. Although structural design follows established formulas, the actual performance of a building is complicated by the passage of time, the behavior of users, the natural elements—and unnatural events. All are difficult to simulate. Buildings, unlike cars, can't be crash-tested. The first important lesson of the World Trade Center collapse is that tall buildings can withstand the impact of a large jetliner. The twin towers were supported by 59 perimeter columns on each side. Although about 30 of these columns, extending from four to six floors, were destroyed in each building by the impact, initially both towers remained standing. Even so, the death toll(代价)was appalling—2,245 people lost their lives. I was once asked, how tall buildings should be designed given what we'd learned from the World Trade Center collapse. My answer was,"Lower. " The question of when a tall building becomes unsafe is easy to answer. Common aerial fire-fighting ladders in use today are 100 feet high and can reach to about the 10th floor, so fires in buildings up to 10 stories high can be fought from the exterior(外部). Fighting fires and evacuating occupants above that height depend on fire stairs. The taller the building, the longer it will take for firefighters to climb to the scene of the fire. So the simple answer to the safety question is "Lower than 10 stories. " Then why don't cities impose lower height limits? A 60-story office building does not have six times as much rentable space as a 10-story building. However, all things being equal, such a building will produce four times more revenue and four times more in property taxes. So cutting building heights would mean cutting city budgets. The most important lesson of the World Trade Center collapse is not that we should stop building tall buildings but that we have misjudged their cost. We did the same thing when we underestimated the cost of hurtling along a highway in a steel box at 70 miles per hour. It took many years before seat belts, air bags, radial tires, and antilock brakes became commonplace. At first, cars simply were too slow to warrant concern. Later, manufacturers resisted these expensive devices, arguing that consumers would not pay for safety. Now we do—willingly.

单选题Many people find home gardening ______.

单选题The course (normally) attracts twenty students (per year), (half of which) will be (from) overseas.

单选题I was in some doubt as to whether the Corporal had __________ us accidentally on his way out of the town or if he'd been deliberately tasked.

单选题The police accused him of setting fire to the building but he denied______in the area on the night of the fire.(南京大学2007年试题)

单选题Every country has its heroes. They may be soldiers or sports people, doctors or film stars. We admire them for their courage, their strength, their devotion to duty or their talent. Their example inspires us to live better, to work harder. Terry Fox was a young student who loved life and who loved sports. When he was just 18 years old a terrible tragedy occurred : his right leg had to be cut off because of cancer. Such an experience would have destroyed a weaker person—but Terry Fox was a fighter. He refused to give up. Instead, while he was recovering from the operation, an idea slowly formed in his mind. He decided he would run across Canada—in order to raise money for cancer research. Slowly and carefully, he began to train. Every step was extremely painful, but he insisted, increasing the distance covered day by day. Sixteen months later, in the spring of 1980, he was ready for the long journey across Canada—his Marathon of Hope. it was a time of inspiration and heartbreaking emotion. Through television, every home saw his distinctive style of running—a kind of half-hop and half-run. Thousands of people lined the route to encourage him and to wish him well. They also gave money to fight cancer. Then, on September 1st, 1980, after 143 days and more than 5000 kilometers completed, everything came tragically to an end. Terry had to stop. He lived on for another nine months and died on June 28th,1981. He was almost 23.

单选题Once ______, this power station will supply all the neighbouring towns and villages with electricity.

单选题Having rooms in which to study will not______, we must also have the time to use them.

单选题These veterans still remember the Urigorous/U discipline and hard training in these camps.

单选题According to the author, applying biotechnology to industry

单选题Federal Reserve System, central banking system of the United States, popularly called the Fed. A central bank serves as the banker to both the banking community and the government; it also issues the national currency, conducts monetary policy, and plays a major role in supervision and regulation of banks and bank holding companies. In the U.S. these functions are the responsibilities of key officials of the Federal Reserve System: the Board of Governors, located in Washington, D.C., and the top officers of the 12 district Federal Reserve banks, located throughout the nation. The Fed's actions, described below, generally have a significant effect on the U.S. interest rates and, subsequently, on stock, bond, and other financial markets. The Federal Reserve's basic powers are concentrated in the Board of Governors, which is paramount in all policy issues concerning bank regulation and supervision and in most aspects of monetary control. The board enunciates the Fed's policies on both monetary and banking matters. Because the board is not an operating agency, most of the day-to-day implementation of policies decisions is left to the district Federal Reserve banks, stock in which is owned by the commercial banks that are members of the Federal Reserve System. Ownership in this instance, however, does not imply control; the Board of Governors and the heads of the Reserve banks orient their policies to the public interest rather than to the benefit of the private banking system. The U.S. banking system's regulatory apparatus is complex; the authority of the Federal Reserve is shared in some instances for example, in mergers or the examination of banks with other federal agencies such as the Comptroller of the Currency and the Federal Deposit Insurance Cooperation (FDIC). In the critical area of regulating the nation's money supply in accordance with national economic goals, however, the Federal Reserve is independent within the government. Income and expenditures of the Federal Reserve banks and of the Board of Governors are not subject to the congressional appropriation process; the Federal Reserve is subject to the congressional appropriation process; the Federal Reserve is self-financing. Its income ($20.2 billion in 1992) comes mainly from Reserve bank holdings of income-earning securities, primarily those of the U.S. government. Outlays ($1.5 billion in 1992) are mostly for operational expenses in providing services to the government and for expenditures connected with regulation and monetary policy. In 1992 the Federal Reserve returned $16.8 billion in earnings to the U.S. Treasury.

单选题Which language does Mary speak well?

单选题 {{B}}Questions 26-30 are based on the following passage:{{/B}} {{B}}　　　　　　　　　　　　　　　　　　Help Wanted Ad{{/B}}Outstanding opportunity with local real estate corporation. Requires strong backgroundin real estate, financing. Some legal training helpful. Prefer candidate with M. A. and two ormore years of successful real estate experience. Broker's license required. Salary range$ 50,000-$ 80,000 yearly in accordance with education and experience. Begin immediately.Interviews will be conducted Tuesday and Thursday, June 10 and 12. Call for an appointment243-11522,or send a letter of application and resume to:Personnel Department　　Executive Real Estate Corporation　　500 Capital Avenue　　Lawrence, Kansas 67884

单选题What you should say in your speech is entirely ______ you.

单选题We all______the achievement he has made in his experiment.

单选题The pressure on her from her family caused her to {{U}}resort to{{/U}} the drastic measures.

单选题 The events of Sept. 11 have ratcheted up security at American airports to the highest level ever, according to a spokesman for Transportation Secretary Norman Mineta. But to say there is plenty of room for improvement puts it mildly. Hundreds of employees with access to high-security areas at 15 U. S. airports have been arrested or indicted by federal law enforcement officials for using phony Social Security numbers, lying about criminal convictions0r being in the United States illegally. None of those arrested had terrorist links, but some aviation experts said the workers were in a position to help smuggle weapons or bombs aboard aircraft if they had wanted. Tests ordered by President Bush and conducted by federal agents at 32 airports between November and February, when airports were on highest alert, showed that security screeners failed to detect knives 70% of the time, guns 30% of the time and simulated explosives 60% of the time. Two members of the House Transportation Committee are pushing to reverse the administration's opposition to arming pilots because groups representing pilots are insisting that their members need to be armed as a last line of defense. Attorney General John Ashcroft said the arrests of hundreds of airport employees showed that the system of background checks--done piecemeal by airlines, private contractors and others--needs tightening. That much is painfully obvious. What isn't clear is why the system was so porous (有漏洞的) to begin with and why it wasn't immediately tightened after that infamous Tuesday in September. Some people in the industry wisely have suggested that all airport workers be required to pass through the same metal detectors and other security checks as flight crews do, Congress has ordered the new Transportation Security Administration to find ways to enact just such a requirement. Unfortunately, no deadline has been set, in part because federal officials are preoccupied with getting thousands of new baggage screeners in place by Nov. 19--when the feds take over airport security--and installing bomb-detection equipment in all airports by the end of the year. Plainly, those two goals are critical. But it would be a mistake to give low priority to fixing other gaping holes in the nation's airport security net. If the federal crackdown is going to be effective, it needs to be comprehensive.

单选题{{B}}Part Ⅳ Cloze{{/B}}{{B}}{{I}}Directions{{/B}}: The following are a list of 15 words and phrases and a passage with 15 blanks. Read the passage carefully and choose one word or phrase from the list for each of the blanks in the passage. Chang the form of the words and phrases if necessary. Write your answers on the {{B}}ANSWER SHEET{{/B}}.{{/I}} Inflation is a period of rapid rises in prices. When your money buys fewer goods so that you get {{U}}(61) {{/U}} for the same amount of money as before, inflation is the problem. Sometimes people describe inflation as a time when "a dollar is not {{U}}(62) {{/U}} a dollar anymore". Inflation is a problem for all consumers, especially people who live on a fixed income. Retired people, for instance, cannot {{U}}(63) {{/U}} on an increase in income as prices rise. They face serious problems in stretching their incomes to {{U}}(64) {{/U}} their needs in time of inflation. Many retired people must cut their spending to {{U}}(65) {{/U}} rising prices. In many cases they must stop {{U}}(66) {{/U}} some necessary items, such as food and clothing. Even {{U}}(67) {{/U}} working people whose incomes are going up, inflation can also be a problem. The {{U}}(68) {{/U}} of living goes up, and they must have even more money to maintain their standard of living. When incomes do not keep {{U}}(69) {{/U}} with rising prices, living standard goes down. People may be earning the same amount of money, but they are not living {{U}}(70) {{/U}} because they are not able to buy as many goods and services. Government units gather information about prices in our economy and publish it as price indexes from {{U}}(71) {{/U}} the rate of price change can be determined. A price index measures changes in prices using the price for a {{U}}(72) {{/U}} year as the base. The base price is set {{U}}(73) {{/U}} 100, and the other prices are reported as a {{U}}(74) {{/U}} of the base price. A price index makes {{U}}(75) {{/U}} possible to compare current price with that in previous years. percentage cost given as well count buying at less worth to keep up with pace which it meet