The SIA Hop-on on the city loop operates daily between______.

A . Darwin　 B . Perth C . the Gold Coast　 D . Brisbane

A . The neighboring router stops receiving ACK packets from this router B . The neighboring router starts receiving route updates from this router C . The neighboring router is too busy to answer the query （generally caused by high CPUutilization） D . The neighboring router is having memory problems and cannot allocate the memory to processthe query or build the reply packet

A . The neighboring router stops receiving ACK packets from this router. B . The neighboring router starts receiving route updates from this router. C . The neighboring router is too busy to answer the query(generally caused by high CPU utilization). D . The neighboring router is having memory problems and cannot allocate the memory to process the query or build the reply packet.

A . awarding B . giving C . granting D . providing

Six pairs will compete in the Aug. 20 "Black OPS: Hack Attack Challenge 2004," organized by the government-funded National Infocomm Competency Center, said its marketing manager Yvonne Choo. They will "penetrate, exploit, gain access and obtain privileged information from the other teams' servers, for the purpose of corporate espionage," the center said on its Web site. Teams will also have to defend their organization's networks against hacking from other teams in the daylong event, it added. Choo said he hoped the contest would help shed light on ways to prevent actual computer attacks. The prize for the best hacker will be a DVD burner and free computer classes. Asia has been the root of some of the worst attacks by hackers in recent years. In May 2000, the so-called Love Bug virus, released in the Philippines, overwhelmed e mail systems worldwide and caused tens of millions of dollars in damage. Close to 80 percent of Singapore's 4 million citizens own personal computers and the island is largely considered to be the most technologically advanced in Southeast Asia. Hackers can be jailed for up to three years or fined up to S$10,000 (US$5,810) under the city-state's Computer Misuse Act. According to the report, the contest will last ______ days. A．one B．two C．four D．six

A．sound B．voice C．noise D．talk

A．Right. B．Wrong. C．Doesn't say.

A．Y B．N C．NG

A．in city centers B．on the outskirts of cities C．where clay could be foun D．near other potters’ workshops

Buses offered a more flexible service than trolleys, because they were not restricted to operating only on fixed tracks. General Motors acquired many of the privately owned streetcar companies and replaced the trolleys with buses that the company made. But bus ridership has declined from a peak of 11 billion riders per year in the late 1940s to 5 million in the 1990s. Commuter railroad service, like trolleys and buses, has also been drastically reduced in most U.S. cities. The one exception to the downward trend in public transportation in the United States is the subway, now known to transportation planners as fixed heavy rail. Cities such as Boston and Chicago have attracted new passengers through construction of new lines and modernization of existing service. Chicago has been a pioneer in the construction of heavy rail rapid transit lines in the median strip of expressways. Entirely new subway systems have been built in recent years in a number of U.S. cities, including Atlanta, Baltimore, Miami, San Francisco, and Washington, D.C. Public transportation is particularly suited to bringing a large number of people into a small area in a short period of time. Consequently, its use is increasingly confined in the United States to rush-hour commuting by workers in the central business district. A bus can accommodate thirty people in the amount of space occupied by one automobile, while a double-track rapid transit line can transport the same number of people as sixteen lanes of urban freeway. Despite modest recent successes, most public transportation systems are caught in a vicious circle, because fares do not cover operating costs. As patronage declines and expenses rise, the fares are increased, which drives away passengers and leads to service reductions and still higher fares. Public expenditures to subsidize construction and operating costs have increased, but public officials in the United States do not consider that public transportation is a vital utility deserving subsidy to the degree long assumed by European governments. In contrast, even in the relatively developed Western European countries and Japan, where automobile ownership rates are high, extensive networks of bus, tram, and subway lines have been maintained, and funds for new construction have been provided in recent years. Since the late 1960s, London has opened 27 kilometers of subways, including two new lines, plus 18 kilometers in light rail transit lines to serve the docklands area. During the same period, Paris has built 65 kilometers of new subway lines, including a new system, known as the Reseau Express Regional (R. E. R.) to serve outer suburbs. Smaller cities have shared the construction boom. In France alone, new subway lines have been built since the 1970s in Lille, Lyon, and Marseille, and hundreds of kilometers of entirely new tracks have been laid between the country's major cities to operate a high-speed train known as the TGV. Which of the following is NOT true of the public transportation systems in the developed countries？ A．Commuter railroad service, trolleys and buses have been reduced in the U. S. B．Subways have largely been maintained. C．Fares usually can not cover operating costs. D．U.S. officials think it worthwhile to subsidize public transportation.

A．unconcerned B．irrelevant C．inseparable D．inaccessible

Telecities will supersede megacities for several reasons, including the drive toward clean air, reducing pollution, energy conservation, more jobs based on services, and coping with the high cost of urban property. Now we must add the need to cope with terrorist threats in a high-technology world. Western mind-sets were clearly jolted in the wake of the terrorist attack on the World Trade Center in New York City and attacks in Indonesia, Saudi Arabia, and else where. But the risks posed by twentieth-century patterns of urbanization and architecture have ye to register fully with political figures and leaders of industry. The Pentagon, for example, has been rebuilt in situation rather than distributed to multiple locations and connected by secure landlines and broadband wireless systems. Likewise, the reconstruction of the World Trade Center complex still represents a massive concentration of humanity and infrastructure. This is a remarkably shortsighted and dangerous vision of the future. The security risks, economic expenses, and environmental hazards of over-centralization are everywhere, and they do not stop with skyscrapers and large governmental structures. There are risks also at seaports and airports, in food and water supplies, at nuclear power plants and hydroelectric turbines at major dams, in transportation systems, and in information and communications systems. This vulnerability applies not only to terrorist threats but also to human error, such as system-wide blackouts in North America in August 2003 and in Italy in September 2003, and natural disasters such as typhoons, hurricanes, floods, and earthquakes. Leaders and planners are only slowly becoming aware that overcentralized facilities are the most vulnerable to attack or catastrophic destruction. There is also growing awareness that new broadband electronic systems now allow governments and corporations to safeguard their key assets and people in new and innovative ways. So far, corporations have been quickest to adjust to these new realities, and some governments have begun to adjust as well. Which of the following statements is true according to the passage？ A．The telecity is a TV manufacturing city. B．The telecity is a city of the speed and bandwidth of networks. C．Singapore is closer to New York than Arkadelphia, Arkansas is in telecity age. D．Singapore is actually closer to New York than Arkadelphia, Arkansas.

<img src='https://img2.soutiyun.com/ask/uploadfile/10656001-10659000/ef67f1686e10c3ead1f607f164e343c0.png' />

On April 18, 1990, the Chinese central government made the announcement of opening up and developing Shanghai Pudong. That was seen as a major strategy to turn Shanghai into one of world's largest economic, financial and trade centers and to regenerate the economy of the Yangtze River Delta and even the whole Yangtze River Valley. The reconstruction of Pudong is a major strategic decision in carrying on the social and economic progress of China. It will lead the country in innovations of administrations, upgrading of industrial structures and expanding the practice of the opening-up policy. The past ten years have witnessed explosive economic growth in Pudong as well as an enormous change in the appearance of the city. Pudong New Area has become the landmark of Shanghai as one of the international economic centers in the 21st century. As the tallest building in China, Jin Mao Tower is au intelligent building offering services for business, hotel, recreation, sightseeing and shopping. It is not only a new tourist attraction but also a window through which people from other parts of the world may get a better understanding of Shanghai and Pudong. Pudong Land area:【46】. Population:【47】. Past situation:【48】. Time for fast development:【49】. A window to see Shanghai:【50】.

1. 近年来中国城市中的摩托车 2. 摩托车的优点和缺点 3. 你对我国城市中摩托车发展前景的看法 You must write your composition in no less than 120 words on Composition Sheet and remember to write it in readable handwriting.

At that moment the land suddenly moved. The vibration was so strong that great buildings fell down, including the new seven-million-dollar City Hall, which the community had good reason to be proud of. Main water pipes burst. Cooking stoves overturned and electric wires flashed. The fires which started caused damage in large areas of the city. What had happened.'？ The rocks had broken apart along nearly three hundred miles of a crack in the earth of California, a feature of the physical map of that region known as a "fault". The damage was greatest in San Francisco which was near the center of the fault. Many buildings were destroyed by fire or by the earthquake itself, and hundreds of people were killed. Many people also died from diseases which broke out in the dirty camps later occupied by homeless people. The fires got out of control and, before they died out, four square mi-les of the city were burnt out. The loss of property was serious. The loss from fire alone amounted to 400,000,000 dollars, more than nine-tenths of the total damage. In those days this was an enormous sum. The effects of the earthquake were widespread. Rivers and streams began to run in new directions and their flow pat-terns were changed. Trees six feet in diameter were uprooted within half a mile of the central break. An area of wet fields on the side of a hill actually moved half a mile downwards. A road which crossed the fault burst apart and a gap of 21 feet remained between the broken ends. The California earthquake is remembered because it was so sudden and because it occurred in a city, where the dam-age and destruction were plainly visible and where many people were killed simultaneously. Actually, deaths on American roads from car accidents are now greater in almost any week of the year, but we are so accustomed to road accidents that we do not pay much attention to them. Scientists and engineers studied the effects of the San Francisco earthquake. The city was rebuilt, and new features were introduced to strengthen buildings and maintain a constant water supply in the event of. another earthquake. The water mains were fitted with control values which would enable water to travel by different routes round broken places. Large underground tanks were constructed to supply water if normal supplies could not be tapped. Special measures were taken to prevent fires, which often do more damage than earthquakes themselves. The San Francisco earthquake provided scientists with valuable information, since the effects of the break were visible and reports of the incident were an important contribution to the world's store of knowledge about earthquakes. The main cause of the great loss of property 'after the San Francisco earthquake in 1960 is______. A．falling buildings B．broken pipes C．fires D．floods

As the mountains sank, ocean water charged over the lowest arts of the remaining land, forming a series of twisting inlets and lagoons (咸水湖) . The highest parts of the former mountain range, nearest the shore, remained as islands. ______【47】Marine fossils found here were 225 feet above sea level, indicating the level of the shoreline prior to the glacier. The 2, 500-mile-long rocky coastline of Maine keeps watch over nearly two thousand islands. Many of these islands are tiny and uninhabited, but many are home to thriving communities. Mt. Desert Island is one of the largest, most beautiful of the Maine coast islands. Measuring 16 miles by 12 miles, Mt. Desert Island was essentially formed as two distinct islands. ______【48】. For years, Mt. Desert Island, particularly its major settlement, Bar Harbor, afforded summer homes for the wealthy. Recently though, Bar Harbor has become a rapidly growing arts community as well. But the best part of the island is the unspoiled forest land known as Acadia National Park. Because the island sits on the boundary line between the temperate (温带) and sub-Arctic zones, the island supports the plants and animals of both zones as well as beach, inland , and alpine (高山 的) plants. ______【49】The establishment of Acadia National Park in 1916 means that this natural reserve will be perpetually available to all people, not just the wealthy. Visitors to Acadia may receive nature instruction from the park naturalists as well as enjoy camping, cycling, and boating. Or they may choose to spend time at the archeological museum, learning about the Stone Age inhabitants of the island. The best view on Mt. Desert Island is from the top of Cadillac Mountain. ______【50】. From the summit, you can gaze back toward the mainland or out over the Atlantic Ocean and contemplate the beauty created by a retreating glacier. A. It also lies in a major bird migration lane and is a resting spot for many birds. B. Mt. Desert Island is one of the most famous of all of the islands left behind by the glacier. C. The wealthy residences of Mt. Desert Island selfishly keep it to themselves. D. The term comes from the activity of the Ice Age. E. This mountain rises 1, 532 feet, making it the highest mountain on the Atlantic seashore. F. It is split almost in half by Somes Sound, a deep and narrow stretch of water seven miles long. (46)

<img src='https://img2.soutiyun.com/shangxueba/ask/64335001-64338000/64337716/48ae99ce89919b8ea814d8bd8606dee0.jpg' /> A. Incorrect bandwidth configuration on router R3 prevents R2 from establishing neighbor adjacency. B. Incorrect bandwidth configuration on router R 5 prevents R2 from establishing neighbor adjacency. C. Router R3 did not reply to the query about network 10.1.1.0/24 sent by router R2 . D. Router R5 did not reply to the query about network 10.1.1.0/24 sent by router R2 .

A: Standing B; Stand C; Stood

A.which B.whose C.where D.when

1.城市里骑车日渐增多，2.说一下汽车增多有哪些好处或坏处，3.你认为应该如何克服这些坏处