单选题Your first contact with an employer will be either to apply for a known job opening or to find out if any jobs are ______.

单选题There is evidence that the usual variety of high blood pressure is, in part, a familial disease. Since families have similar genes as well as similar environments, familial diseases could be due to shared genetic influences, to shared environmental factors, or to both. For some years, the role of one environmental factor commonly shared by families, namely dietary salt (i.e. sodium chloride), has been studies at Brook Haven National Laboratory. These studies suggest that frequent excess salt eating can lead to high blood pressure in man and animals. Some individuals, however, and some rats consume large amounts of salt without developing high blood pressure. No matter how strictly all environmental factors were controlled in these experiments, some salt-fed animals never developed high blood pressure whereas a few rapidly developed very serious high blood pressure followed by early death. These marked variations were interpreted to result from differences in genetic constitution. By mating in successive generations only those animals that failed to develop high blood pressure from salt eating, a resistant strain (the "R" strain) has been evolved in which consumption of large quantities of salt falls to influence the blood pressure significantly, in contrast, by mating only animals that quickly develop high blood pressure from salt, a sensitive strain ("S" strain) has also been developed. The availability of these two strains permits investigations not possible formerly. They provide a likely laboratory model on which to investigate some clinical (临床的) aspects of the human types of high blood pressure. More important, there might be the possibility of developing methods by which genetic likelihood of human beings to develop high blood pressure can be defined without waiting for its appearance. Radioactive (放射性的) sodium 22 was an important "tool" in working out the characteristics of the sodium chloride metabolism.

单选题The firm's promise to increase our pay was a reluctant ______ to union demands, because the union would otherwise not go back to work. A. response B. reply C. reaction D. concession

单选题In the southwestern part of the United States ______ built in the last century. A. there are many abandoned mining towns B. were many abandoned mining towns C. where there are many abandoned mining towns D. where are many abandoned mining towns

单选题September 11 should have driven home a basic lesson for the Bush administration about life in an interconnected world: misery abroad threatens security at home. It is no coincidence that Osama Bin Laden found warm hospitality in the Taliban's Afghanistan, whose citizens were among the most impoverished and oppressed on earth. If the administration took this lesson seriously, it would dump the rules of realpolitik that have governed U.S. foreign aid policy for 50 years. Instead, it is pouring money into an ally of convenience, Pakistan, which is ultimately likely to expand the ranks of anti-American terrorists abroad. To enlist Pakistan in the fight against the Taliban, the Bush administration resurrected the Cold War tradition of propping up despotic military regimes in the name of peace and freedom. Its commitment of billions of dollars to Pakistan since September 11 will further entrench the sort of government that has made Pakistan both a development failure and a geopolitical hotspot for decades. Within Pakistan, the aid may ultimately create enough angry young men to make up A1 Qaeda's losses in Afghanistan. In South Asia as a whole, the cash infusion may accelerate a dangerous arms race with India. Historically, the U.S. government has cloaked aid to allies such as Pakistan in the rhetoric of economic development. As a Cold War ally, Pakistan received some $ 37 billion in grants and loans from the West between 1960 and 1990, adjusting for inflation. And since September 11, the U.S. administration has promised more of the' same. It has dropped sanctions imposed after Pakistan detonated a nuclear bomb in 1998, pushed through a $1.3 billion IMF loan for Pakistan, and called for another $2 billion from the World Bank and the Asian Development Bank. The Bush administration is also, ironically, pressing allies to join it in canceling or rescheduling billions of dollars of old (and failed) loans that were granted in past decades in response to similar arm-twisting. Despite--even because of--all this aid, Pakistan is now one of the most indebted, impoverished, militarized nations on earth. The causes of Pakistan's poverty are sadly familiar. The government ignored family planning, leading to population expansion from 50 million in 1960 to nearly 150 million today, for an average growth rate of 2.6 percent a year. Foreign aid meant to pave rural roads went into unneeded city highways--or pockets of top officials. And the military grew large, goaded by a regional rivalry with India that has three times bubbled into war. The result is a government that, as former World Bank economist William Easterly has observed, "cannot bring off a simple and cheap measles (麻疹) vaccination (预防接种) program, and yet...can build nuclear weapons./

单选题What I say or what I think ______ no business of yours. A. is B. are C. has D. have

单选题As people continue to grow and age, our body systems continue to change. At a certain point in your life your body systems will begin to weaken. Your joints may become stiff. It may become more difficult for you to see and bear. The slow change of aging causes our bodies to lose some of their ability to bounce back from disease and injury. In order to live longer, we have always tried to slow or stop this process that leads us toward the end of our lives. Many factors contribute to your health. A well-balanced diet plays an important role. The amount and type of exercise you get is another factor. Your living environment and the amount of stress you are under is yet another. But scientists studying senescence (衰老) want to know: Why do people grow old? They hope that by examining the aging process on a cellular level medical science may be able to extend the length of life.

单选题Scientists say it may be five or ten years ______ it is possible to test this medicine on human patients. A. since B. before C. after D. when

单选题An (enormous) (variety) of information may be (obtained from) a (largest) magazine.

单选题(The Chinese) were the first and (large) ethnic(种族) group (to work) on the construction (of) the transcontinental railroad system.A. The ChineseB. largeC. to workD. of

单选题Speaker A: Have you ever been to the Temple of Heaven in Beijing?Speaker B: ______

单选题I have been very lucky to have won the Nobel Prize twice. It is, of course, very exciting to have such an important (1) of my work, but the real pleasure was in the work itself. Scientific research is like an exploration of a voyage of discovery. You are (2) trying out new things that have not been done before. Many of them will lead (3) and you have to try something different, but sometimes an experiment does (4) and tells you something new and that it is really exciting. (5) small the new finding may be, it is great to think "I am the only person who knows this" and then you will have the fun of thinking what this finding will (6) and of deciding what will be the (7) experiment. One of the best things about scientific research is that you are always doing something different and it is never (8) . There are good times when things go well and bad times when they (9) Some people get discouraged at the difficult times, but when I have a failure my policy has always been not to worry but to start planning the next experiment, (10) is always fun.

单选题Peter used to live in London, ______? A. usedn't he B. wasn't he C. didn't he use D. didn't he use to

单选题Directions: For each blank in the following passage, choose the best answer from the choices given below. Mark your answer on the Answer Sheet by drawing with a pencil a short bar across the corresponding letter in the brackets. Double Income and No Kids(DINK)becomes fashionable in China. The DINK couples are usually regarded as those who have higher educations and {{U}} {{U}} 1 {{/U}} {{/U}}careers with higher incomes. The increase in DINK families has shattered the Chinese traditional idea of the family and {{U}} {{U}} 2 {{/U}} {{/U}}typical. A survey conducted recently in Beijing by a market survey company {{U}} {{U}} 3 {{/U}} {{/U}}that about 3.3 percent of 1,300 surveyed families in Beijing said they have {{U}} {{U}} 4 {{/U}} {{/U}}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 {{U}} {{U}} 5 {{/U}} {{/U}}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 {{U}} {{U}} 6 {{/U}} {{/U}}to get themselves free from the obligation of raising children. {{U}} {{U}} 7 {{/U}} {{/U}}, 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 {{U}} {{U}} 8 {{/U}} {{/U}}serious one is to have no heir for the family. So childless couples will suffer discrimination {{U}} {{U}} 9 {{/U}} {{/U}}family members and neighbors. But it is clear that the new tide of ideas has come, which suggests young people {{U}} {{U}} 10 {{/U}} {{/U}}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.

单选题 Directions: For each blank in the following passage, choose the best answer from the choices given below. Educational attitudes in a country may be a {{U}}(31) {{/U}} by which its basic cultural values are reflected. To take the American higher education {{U}}(32) {{/U}} example, university classrooms share certain identical features though they {{U}}(33) {{/U}} from course to course in some aspects. Any student, {{U}}(34) {{/U}} their ethnic and social background; is not only allowed but also encouraged to have chances for active participation in class. {{U}}(35) {{/U}}, teachers often expect independent learning {{U}}(36) {{/U}} their students. It will be most appreciated if a student can {{U}}(37) {{/U}} the initiative and complete the assignment without too much {{U}}(38) {{/U}} upon his or her instructors. These two {{U}}(39) {{/U}} features in American university classrooms actually manifest the basic American values, especially self-reliance and {{U}}(40) {{/U}} of opportunity.

单选题From the passage, we know the organizations mentioned above mainly work for______.

单选题 Male advertisers Female advertisers 1 MALE, aged 25, WLTM female, n/s, 20-30 for friendship, possible romance. I like pubs, clubs, staying in, as well as going out. I live in the Windsor area and to get on well with kids A FEMALE, 26, prof, fairly slim, WLTM a slim male, 26-33, for friendship and possible romance 2 IF you are not separated or emotionally unstable but are a widow over 55 & looking for partner with view to long-term meaningful relationship, then this 67 years old widower could be the one for you B ACTIVE lady, living in Maidstone area, early 60s WLTM females or males for friendship and to hare interests, mostly travel 3 HL, I"m Andy, 32s and divorced. A happy-go-lucky person looking for a lady between 25 and 40. Single parents welcome as I love children and a home life C ARE you the romantic, friendly, articulate male with varied interests and a GSOH that this woman is looking for? If so and you"re 40ish-50ish but feeling 30ish then we will have a lot in common 4 MALE, 50s, caring, & sincere, with a GSOH, seeks an affectionate lady for friendship, possible romance D LADY, 40s, fairly slim, seeks a kind, generous, warm-hearted man, about same age, for friendship and outings 5 I am an energetic man of 63, but don"t look it. I have a good head of hair. I like country and western music and historical places, walking, a pint now and again. I"m still working part-time, but I don"t drive. I have a GSOH E HELLO. my name is Liz. I am 19 years old and live in the Cambridge area. I am seeking a male 20-25. I enjoy pubs and clubs and I like nights in or out and I like children. I AM 5"5" with red hair

单选题 {{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No one had told Smith about ______ a lecture the following day. A. there being B. there be C. there would be D. there was