Most people were no longer listening to his long（）story.

A . change the channel selection. B . install higher gain antennas. C . raise the antennas. D . increase transmitter power.

A . A、STANDBYENGINE B . B、SLOWASTERN C . C、FULLAHEAD D . D、FINISHEDWITHENGINE

A . Diesel engine propulsion B . Diesel electric propulsion C . Steam engine propulsion D . Gas turbine propulsio

A . Change the channel selection. B . Install higher gain antennas. C . Raise the antennas. D . Increase transmitter power.

A . VLAN assignments B . DHCP option 43 C . PoE D . ACL E . QoS

A . Stop Engine B . No Engine Revolutions C . Stand-by Engine D . Finished With Engine

A．Because she never change her features. B．Because the maker doesn't like to invest more on her. C．Because she has met a strong competitor. D．Because customers are fed up with her.

A.survived B.lived C.suspected D.alived

A．Right B．Wrong C．Not mentioned

A．Y B．N C．NG

In ancient Mexico there were many clearings in the forest. In each clearing was a village with fields of different crops around it. The Maya cut down trees with stone axes and planted seeds by digging holes in the ground with pointed sticks. A farmer was able to grow crops that produced food for several people. But not every Maya had to be a farmer. Some were cloth makers, builders, or priests. The Maya believed in many gods. The people built large temples to honor their gods. Skillful workers built cities around these temples. It was difficult to construct these cities, because they had no horses to carry the heavy stone needed. Workers had to carry the building materials themselves. Today, many of these ancient Mayan cities and temples are still standing. Measuring time was important to the Maya, so they developed a system for measuring it accurately. Farmers needed to know when to plant and harvest their crops. Mayan priests made a system to keep track of time. They wrote numbers as dots (...) and bars (- ). A dot was one and a bar was five. The Mayan priests studied planets. They made a calendar from what they learned. The year was divided into. 18 months of 20 days each with five days left over. The Mayan calendar was far more accurate than the European calendars of the time. Around the year 800, the Maya left their villages and beautiful cities, never to return. No one knows why. They may have died from an infectious disease. They may have left because the soil could no longer grow crops. Archaeologists are still trying to find the lost secrets of the Maya. They are still one of our greatest mysteries. This article may be taken from ______. A．a magazine B．a literature book C．an art book D．a historical book

A．True B．False

Most Americans stop working at the age of sixty-five or seventy and retire. Because work is such an important part of life in American culture, retirement can be very difficult for Americans. Retirees often feel that they are useless and unproductive. Of course, some people are happy to retire, but leaving one's job, whatever it is, is a difficult change, even for those who look forward to retiring. Retirement can also bring financial problems. Many people depend on Social Security checks every month. During their working years, employees contribute a certain percentage of their salaries to the government. Each employer also gives a certain percentage to the government. When people retire, they receive this money as income. Sometimes these checks do not provide enough money to live on, because prices are prone to increasing, a process known as "inflation". Senior citizens, those over sixty-five, typically have to have savings in the bank or other retirement plans to make ends meet. In addition, many senior citizens have to change their lifestyles after retirement. They have to spend carefully to be sure that they can afford to buy food, fuel and other necessities(必需品). Of course, many senior citizens are happy with their retirement. They have time to spend with their families or to enjoy their hobbies. Some continue to work part-time, others do volunteer work. Some, like those in the Retired Business Executives Association, even help young people to start new businesses. Many retired citizens also belong to "Golden Age" groups. These organizations plan trips and social events. There are many other opportunities for retirees. Which of the following could be the best title of the passage？ A．Golden Age Groups B．The American Opinion of Work C．The Importance of Work in America D．The Problems of Retirement in America

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

A Right B Wrong C Not mentioned

A、dropped out of B、contributed to C、held on to D、took a toll on

The shift, little noticed outside the medical establishment but already controversial inside it, suggests that doctors are starting to redefine their roles, from being concerned exclusively about individual patients to exerting influence on how healthcare dollars are spent. In practical terms, the new guidelines being developed could result in doctors choosing one drug over another for cost reasons or even deciding that a particular treatment-at the end of life, for example-is too expensive. In the extreme, some critics have said that making treatment decisions based on cost is a form. of rationing. Traditionally, guidelines have heavily influenced the practice of medicine, and the latest ones are expected to make doctors more conscious of the economic consequences of their decisions, even though there’s no obligation to follow them. Medical society guidelines are also used by insurance companies to help determine reimbursement(报销)policies. Some doctors see a potential conflict in trying to be both providers of patient care and financial overseers. "There should be forces in society who should be concerned about the budget, but they shouldn’t be functioning simultaneously as doctors," said Dr. Martin Samuels at a Boston hospital. He said doctors risked losing the trust of patients if they told patients, "I’m not going to do what I think is best for you because I think it’s bad for the healthcare budget in Massachusetts." Doctors can face some grim trade-offs. Studies have shown, for example, that two drugs are about equally effective in treating macular degeneration, an eye disease. But one costs $50 a dose and the other close to $2,000. Medicare could save hundreds of millions of dollars a year if everyone used the cheaper drug. Avastin, instead of the costlier one, Lucentis. But the Food and Drug Administration has not approved Avastin for use in the eye, and using it rather than the alternative, Lucentis, might carry an additional, although slight, safety risk. Should doctors consider Medicare’s budget in deciding what to use？ "I think ethically(在道德层面上)we are just worried about the patient in front of us and not trying to save money for the insurance industry or society as a whole," said Dr. Donald Jensen. Still, some analysts say that there’s a role for doctors to play in cost analysis because not many others are doing so. "In some ways," said Dr. Daniel Sulmasy, "it represents a failure of wider society to take up the issue." 57.What do some most influential medical groups recommend doctors do？ A.Reflect on the responsibilities they are supposed to take. B.Pay more attention to the effectiveness of their treatments. C.Take costs into account when making treatment decisions. D.Readjust their practice in view of the cuts in health care. 58.What were doctors mainly concerned about in the past？ A.Specific medicines to be used. B.Professional advancement. C.Effects of medical treatment. D.Patients’ trust. 59.What may the new guidelines being developed lead to？ A.The redefining of doctors’ roles. B.Conflicts between doctors and patients. C.Overuse of less effective medicines. D.The prolonging of patients’ suffering. 60.What risk do doctors see in their dual role as patient care providers and financial overseers？ A.They may be involved in a conflict of interest. B.They may be forced to divide their attention. C.They may have to use less effective drugs. D.They may lose the respect of patients. 61.What do some experts say about doctors’ involvement in medical cost analysis？ A.It may add to doctors’ already heavy workloads. B.It will help to save money for society as a whole. C.It results from society’s failure to tackle the problem. D.It raises doctors’ awareness of their social responsibilities.

A．with B．about C．above D．over