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.

单选题I start my day here at five o"clock. I get up and prepare all the children"s clothes. If there are shoes to shine, I do it in the morning. About seven o"clock I bathe the children. I leave the baby with the baby sitter and I go to work at the settlement house. I work until twelve o"clock. Sometimes I"ll work longer if I have to go to welfare and get a check for somebody. When I get back, I try to make hot food for the kids to eat. In the afternoon it"s pretty well on my own. I scrub and clean and cook and do whatever I have to do. Welfare makes you feel like you"re nothing. Like you"re laying back and not doing anything and it"s falling in your lap. But you must understand, mothers, too, work. My house is clean. I"ve been scrubbing since this morning. You could check my clothes, all washed and ironed. I"m home and I"m working. I am a working mother. Some men work eight hours a day. There are mothers that work eleven, twelve hours a day. We get up at night, a baby vomits, you have to be calling the doctor, and you have to be changing the baby. When do you get a break, really? You don"t. This is an all-around job, day and night. Why do they say it"s charity? We"re working for our money. I am working for this check. It is not charity. We are giving some kind of home to these children. I"m so busy all day I don"t have time to daydream. I pray a lot. I pray to God to give me strength. If He should take a child away from me, to have the strength to accept it. It"s His kid. He just borrowed him to me. It"s living off welfare and feeling that you"re taking something for nothing the way people have said. You get to think maybe you are. You get to think, why am I so stupid? Why can"t I work? Why do I have to live this way? You feel degraded. The other day I was at the hospital and I went to pay my bill. This nurse came and gave me the green card. Green card is for welfare. She went right in front of me and gave it to the cashier. She said, "I wish I could stay home and let the money fall in my lap." I felt rotten. I was just burning inside. You hear this all the way around you. The doctor doesn"t even look at you. People are ashamed to show that green card. This nurse, to her way of thinking, she represents the working people. The ones with the green card, we represent the lazy no-goods.

单选题 On November 19, 1863, Abraham Lincoln went to Gettysburg in Pennsylvania to speak at the National Soldiers Cemetery. The Civil War was still going on. There was much criticism of President Lincoln at the time. He was not at all popular. He had been invited to speak at Gettysburg only out of politeness. The principal speaker was to be Edward Everett, a famous statesman and speaker of the day. Everett was a handsome man and very popular everywhere. It is said that Lincoln prepared his speech on the train while going to Gettysburg. Late that night, alone in his hotel room and tired out, he again worked briefly on the speech. The next day Everett spoke first. He spoke for an hour and 57 minutes. His speech was a perfect example of the rich oratory of the day. Then Lincoln rose. The crowd of 15 000 people at first paid little attention to him. He spoke for only nine minutes. At the end, there was little applause. Lincoln turned to a friend and remarked, "I have failed again. " On the train back to Washington, he said sadly, "That speech was a flat failure, and the people are disappointed." Some newspapers at first criticized the speech. But little by little as people read the speech they began to understand better. They began to appreciate its simplicity and its deep meaning. It was a speech which only Abraham Lincoln could have made. Today, every American schoolchild learns Lincoln's Gettysburg Address by heart. Now everyone thinks of it as one of the greatest speeches ever given in American history.

单选题How to talk to a Martian is an academic question.

单选题An Olympic Marathon is 26 miles and 385 yards, ______ approximately from Marathon to Athens. A. distance B. is the distance C. the distance D. the distance is

单选题All ______ is a continuous supply of the basic necessities of life. A. what is needed B. the time needed C. for our needs D. that is needed

单选题The committee is expected to ______ a decision this evening.

单选题A: That necklace looks really lovely on you. B: ______.

单选题Good research involves (more) merely (gathering) information; (it) is (essentially) a thinking activity.

单选题When television first began to expand, very few of the people who had become famous as radio commentators were able to be effective on television. Some of the difficulties they experienced when were trying to (31) themselves to the new medium were technical. When working on radio, for example, they had become (32) to seeing on behalf of the listener. This (33) of seeing for others means that the commentator has to be very good at talking. Above all, he has to be able to (34) a continuous sequence of visual images which (35) meaning to the sounds which the listener hears. In the (36) of television, however, the commentator sees everything with the viewer. His role, therefore, is completely different. He is there to make (37) that the viewer does not miss some point of interest, to help him focus on particular things, and to (38) the images on the television screen. Unlike his radio colleague, he must know the (39) of silence and how to use it at those moments (40) the pictures speak for themselves.

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 background in real estate, financing. Some legal training helpful. Prefer candidate with M.A. and two or more 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 appointment 243-11522, or send a letter of application and resume to: Personnel Department Executive Real Estate Corporation 500 Capital Avenue Lawrence, Kansas 67884

单选题However, at times this balance in nature is______, resulting in a number of possiblyunforeseen effects. A. troubled B. disturbed C. confused D. puzzled

单选题Double Income and No Kids (DINK) becomes fashionable in China. The DINK couples are usually regarded as those who have higher educations and 11 careers with higher incomes. The increase in DINK families has shattered the Chinese traditional idea of the family and 12 typical. A survey conducted recently in Beijing by a market survey company 13 that about 3.3 percent of 1,300 surveyed families in Beijing said they have 14 plans to have children. It is estimated there are about 600,000 DINK families in large cities like Beijing, Tianjin, Shanghai, and Chongqing. Why they choose such a lifestyle is concluded in 15 reasons. Some are showing great worry for the rapid growth of population; some are indulged in building a more well-off family; some are showing sharp 16 to get themselves free from the obligation of raising children. 17 , most people still believe it is necessary to bear a child to keep the family line on. As an old Chinese saying goes, there are three aspects in failing to be a filial son and the 18 serious one is to have no heir for the family. So childless couples will suffer discrimination 19 family members and neighbors. But it is clear that the new tide of ideas has come, which suggests young people 20 to choose their own way of life. They are installing modern ideas into traditional families and society. In the modernization process, personal choices will be highly respected.