单选题Peter: Haven't seen you for weeks. ______ Pat: Can' t complain.

单选题The Export-Import Bank extends long-term ______ at favorable rate to foreign buyers, thus financing the purchase of U.S. goods and services. A. mortgages B. securities C. insurances D. loans

单选题We arranged that Kissinger would fly to Vietnam for talks early in July and then stop in Pakistan on the way back. There he would develop a stomachache that would require him to stay in Pakistan on the way back. Then, with President Yahya's cooperation he would be taken to an airport where a Pakistani plane would fly him over the mountains to China. Kissinger's trip was given the code (密码) named Polo after Marco Polo, another Western traveler who made history by journeying to China. Everything went without a hitch. His slight illness in Islamabad received only minor attention from reporters covering him. They accepted the story that he would be confined to bed for at least a couple of days and began making arrangements for their own entertainment. Because of the need for complete secreey and the lack of any direct communication facilities between Beijing and Washington, I knew that we would have no word from Kissinger while he was in China. Even after he had returned to Pakistan it would still be important to maintain secrecy. So before Kissinger left, we agreed on a single code word--Eureka--which he would use if his mission were successful. On July 11, A1 Haig, who knew our code word, phoned me to say that a cable from Kissinger had arrived. "What's message?" I asked. "Eureka," he replied.

单选题{{B}}Passage One{{/B}} As they grow older, most people wonder how increasing age will affect intelligence. Can people in middle age and beyond expect to think as effectively and to solve problems as efficiently as they have in the past? One of the difficulties in comparing the intellectual functioning of people at different ages is the problem of cohort((具有相同特征的)一群人) effects. Different age groups in the population have experienced different historical events (wars, exposure to television, and so on) as well as changes in the general standard of living. Different scores that people of varying ages achieve on intelligence tests could be partly due to changes in diet, housing, or health care or, even more likely, to the amount and quality of education. Since the beginning of this century, there has been a trend for more people to go to school and to remain in school longer. Because it eliminates these cohort effects, a longevous (长寿的) study may be the best way to look at age-related changes in intellectual functioning. One of the few longevous studies of intellectual functioning is the Seattle Longevous Study, conducted by K. Warner Schaie and his associates. The original subjects, who ranged in age from 18 to 67, have now been tested 4 times over a 21 year period. These results have given a reasonably good picture of longitudinal(纵向的) change in cognitive abilities. The data show that there are only trivial changes in the kinds of abilities measured by intelligence tests before the age of 60, and no reliable decrease can be shown in these abilities before age 74. Although there is some decrease in measured ability in the late 60s and the 70s, it is not until age 81 that the average person falls below the middle range of performance for young adults. The data from the Seattle Longevous Study also suggest that there are very great individual differences in intellectual change throughout adulthood. Between the ages of 74 and 81, less than half the subjects showed any significant change. One important factor is health, especially the presence or absence of coronary(冠状) heart disease. Another is a high socioeconomic status, which is related not only to higher initial levels of functioning but to the maintenance of a higher level throughout life. A flexible life style in middle age, probably associated with a flexible personality style, also tends to predict high performance in old age. While some of these variables may have substantial hereditary (遗传的) elements, changes in environment and education could also be important in maintaining a higher level of functioning for many individuals.

单选题Adecco is an organization which employs people ______.

单选题According to a recent poll, 61 percent of American high school students admitted ______ cheating on exams at least once. A. to B. on C. of D. for

单选题He seemed immune ______ such emotions as jealousy, vanity, bitterness, anger and resentment. A. to B. from C. with D. of

单选题Michael: The Johnsons are moving next week. We are going to have a going-away party for them Saturday.Tracy: I didn't realize they were moving so soon. ______Michael: Yes, but we'll have one last chance to get together. We're planning, a barbecue.

单选题There ______ more leisure and money about, so travel ______ become available to many people. A. is/has B. are/has C. is/have D. are/have

单选题 A Media Director Job Code: A-05-010 POSTED: Feb. 13 Salary: $ 90,000—$120,000 Location: Irving TX Employer: Michaels Stores Inc. Type: Full Time—Experienced Description Basic Function: The Media Director is responsible for managing the Media Department. The Media Director is responsible for overseeing market analyses and media recommendations for all existing, new and prospective retail locations. The Media Director manages and reviews all advertising expenses that pertain to media and oversees all media agreements for newspapers, radio, television, outdoor and magazine advertising. The Media Director is responsible for the motivation, training, and development of direct staff which includes analysts and coordinators. The Media Director determines the media goals and objectives for the company and executes overall media strategy. Notes: U.S. Residents Only. Employer will assist with relocation costs. Salary is based on full compensation package including bonus and executive stock plan. Requirement EDUCATION: Bachelor's Degree: Degree in Advertising, Marketing or related field. WORK EXPERIENCE: Minimum of 10 years in all phases of print media buying and planning. Ten years' experience in a Business environment. Experience in ROI, sales, and trade area analyses. Thorough experience in retail advertising. Proven directorial experience. B Desktop Technology Consultant Work Schedule Full Time Salary $ 41,000--59,500* Location Washington D.C. metropolitan area Description: Computer Information Systems professionals: if you enjoy being the one that everyone comes to for computer technical help, then we are looking for you. You will respond to incoming customer calls for IT assistance; provide one-on-one consultation and applications troubleshooting assistance. * Employees within the organization have opportunities for additional salary advancement.

单选题The habits of those who constantly play video games are of great interest to people working in the video-game industry. If video games are going to be one of the most attractive features of future interactive television systems, it is important for manufacturers to know what types of games to produce, how best to present such games on interactive video, and how to ensure that such games maintain their fascination for people. Above all, it is essential to build up detailed profiles of people who are addicted to video games. Until recently, the chief market for video games has been boys aged 8 to 15. The fascination for interactive video games is seen in its purest form in this group. Video games appeal to some deep instinct in boys, who find it impossible to tear themselves away from them. Schoolwork is neglected, health is damaged, and even eating habits are affected. Girls of the same age, however, are entirely different, demonstrating far greater freedom from the hold of video games. Quite simply, they can accept and deal with video games easily, being able to play them when they want and then leave them alone. Aware of the reliance on boys of such a relatively narrow age group, some video-game manufacturers have tried to attract younger boys while others have concentrated on providing an older audience with an excuse to extend its game-playing habits into adulthood. These attempts have certainly had some success, though it must be admitted, of a fairly limited nature in comparison with the huge success of the 8 to 15 age group. No one has yet succeeded, however, in making video games attractive to the largest market of all: young adult women. These women buy more novels and watch more films and television dramas than any other single section of the population—but few show interest in video games.

单选题The thief was so______by the bright lights and barking dogs that he left hastily.

单选题A promotion of a country's international trade position is associated with of its currency.

单选题You should use ______and natural language when you write a personal letter.

单选题He is the only one that is senior in age ______ her so she called him old pal.

单选题The differences between the afternoon high and the evening low are the same in ______.

单选题Engineering students are supposed to be examples of practicality and rationality, but when it comes to my college education I am an idealist and a fool. In high school I wanted to be an electrical engineer and, of course, any sensible student with my aims would have chosen a college with a large engineering department, famous reputation and lots of good labs and research equipment. But that"s not what I did. I chose to study engineering at a small liberal-arts (文科) university that doesn"t even offer a major in electrical engineering. Obviously, this was not a practical choice; I came here for more noble reasons. I wanted a broad education that would provide me with flexibility and a value system to guide me in my career. I wanted to open my eyes and expand my vision by interacting with people who weren"t studying science or engineering. My parents, teachers and other adults praised me for such a sensible choice. They told me I was wise and mature beyond my 18 years, and I believed them. I headed off to college sure I was going to have an advantage over those students who went to big engineering "factories" where they didn"t care if you have values or were flexible. I was going to be a complete engineer; technical genius and sensitive humanist (人文 学者) all in one. Now I"m not so sure. Somewhere along the way my noble ideals crashed into reality, as all noble ideals eventually do. After three years of struggling to balance math, physics and engineering courses with liberal-arts courses, I have learned there are reasons why few engineering students try to reconcile (协调) engineering with liberal-arts courses in college. The reality that has blocked my path to become the typical successful student is that engineering and the liberal arts simply don"t mix as easily as I assumed in high school. Individually they shape a person in very different ways; together they threaten to confuse. The struggle to reconcile the two fields of study is difficult. (348 words)

单选题There are some earth phenomena you can count on, but the magnetic field, someday is not of them. It fluctuates in strength, drifts from its axis, and every few 100,000 years undergo, dramatic polarity reversal—a period when North Pole becomes South Pole and South Pole becomes North Pole. But how is the field generated, and why is it so unstable? Groundbreaking research by two French geophysicists promises to shed some light on the mystery. Using 80 meters of deep sea sediment (沉淀物) core, they have obtained measurements lots of magnetic-field intensity that span 11 polarity reversals and four million years. The analysis reveals that intensity appears to fluctuate with a clear, well-defined rhythm. Although the strength of the magnetic field varies irregularly during the short term, there seems to be an inevitable long-term decline preceding each polarity reversal. When the poles flip—a process that takes several hundred thousand years—the magnetic field rapidly regains its strength and the cycle is repeated. The results have caused a stir among geophysicists. The magnetic field is thought to originate from molten (熔化的) iron in the outer core, 3, 000 kilometers beneath the earth"s surface. By studying mineral grains found in material ranging from rocks to clay articles, previous researchers have already been able to identify reversals dating back 170 million years, including the most recent switch 730, 000 years ago. How and why they occur, however, has been widely debated. Several theories link polarity flips to external disasters such as meteor (陨星) impacts. But Peter Olson, a geophysicist at the Johns Hopkins University in Baltimore, says this is unlikely if the French researchers are right. In fact, Olson says intensity that predictably declines from one reversal to the next contradicts 90 percent of the models currently under study. If the results prove to be valid geophysicists will have a new theory to guide them in their quest to understand the earth"s inner physics. It certainly points the direction for future research. (333 words)

单选题The duty of a soldier is to defend his country.