单选题Make sure the table is securely anchored .

单选题Parents have a legal duty to ensure that their children are provided with efficient education suitable to their age.

单选题Basketball is the winter sport in American schools and colleges. Like football, basketball originated in the US and is not popular in other countries. Many Americans prefer it to football because it is played indoors throughout the winter and because it is a faster game. It is a very popular game with schools, and in more than 20 states, state -wide high school matches are held yeady. Football popular in the United States originated fromA. England.B. the United States.C. Canada.D. Scotlan

单选题Stress While still catching-up to men in some spheres of modem life, women appear to be way ahead in at least one undesirable category. "Women are particularly susceptible to developing depression and anxiety disorders in response to stress compared to men," according to Dr. Yehuda, chief psychiatrist at New York"s Veteran"s Administration Hospital. Studies of both animals and humans have shown that sex hormones somehow affect the stress response, causing females under stress to produce more of the trigger chemicals than do males under the same conditions. In several of the studies, when stressed-out female rats had their ovaries (the female reproductive organs) removed, their chemical responses became equal to those of the males. Adding to a woman"s increased dose of stress chemicals, are her increased "opportunities" for stress. "It"s not necessarily that women don"t cope as well. It"s just that they have so much more to cope with," says Dr. Yehuda. "Their capacity for tolerating stress may even be greater than men"s," she observes, "it"s just that they"re dealing with so many more things that they become worn out from it more visibly and sooner." Dr. Yehuda notes another difference between the sexes. "I think that the kinds of things that women are exposed to tend to be in more of a chronic or repeated nature. Men go to war and are exposed to combat stress. Men are exposed to more acts of random physical violence. The kinds of interpersonal violence that women are exposed to tend to be in domestic situations unfortunately, parents or other family members, and they tend not to be one shot deals. The wear-and-tear that comes from these longer relationships can be quite devastating." Adeline Alvarez married at 18 and gave birth to a son, but was determined to finish college. "I struggled a lot to get the college degree. I was living in so much frustration that that was my escape, to go to school, and get ahead and do better." Later, her marriage ended and she became a single mother, "It"s the hardest thing to take care of a teenager, have a job, pay the rent, pay the car payment, and pay the debt. I lived from paycheck to paycheck." Not everyone experiences the kinds of severe chronic stresses Alvarez describes. But most women today are coping with a lot of obligations, with few breaks, and feeling the strain. Alvarez"s experience demonstrates the importance of finding ways to diffuse stress before it threatens your health and your ability to function.

单选题In a sudden {{U}}outbreak{{/U}} of anger, the man tore up everything within reach. A. attack B. burst C. split D. blast

单选题Mary had sold her bike, taken a driving test and bought a car.

单选题A well-written composition Uneed/U good choice of words and clear organization among other things.

单选题Paragraph 2 ______.

单选题Eleanor Roosevelt's dedication to humanitarian causes won her affection and honor at home and {{U}}abroad{{/U}}.

单选题His new movie depicts an ambitious American.A. writesB. sketchesC. describesD. indicates

单选题 The Diminishing Scientific Leadership of the U.S. With the rapid globalization of science itself (more than 40 percent of scientific Ph.D. students trained in the United States are now foreign nationals, roughly half of whom return to their countries of origin) , the once undisputed U.S. scientific lead, whether relevant to product lead or not, is diminishing. The competition of foreign students for positions in U.S. graduate schools has also contributed to making scientific training relatively unattractive to U.S. students, because the rapidly increasing supply of students has diminished the relative rewards of this career path. For the best and brightest from low-income countries, a position as a research assistant in the United States is attractive, whereas the best and brightest U.S. students might now see better options in other fields. Science and engineering careers, to the extent that they are opening up to foreign competition (whether imported or available through better communication), also seem to be becoming relatively less attractive to U.S. students. With respect to the role of universities in the innovation process the speculative boom of the 1990s (which, among other things, made it possible to convert scientific findings into cash rather quickly) was largely unexpected. The boom brought universities and their faculties into much closer contact with private markets as they tried to gain as much of the economic dividends from their discoveries as possible. For a while, the path between discoveries in basic science and new flows of hard cash was considerably shortened. But during the next few decades, this path will likely revert toward its more traditional length and reestablish in a healthy way, the more traditional (and more independent) relationship between the basic research done at universities and those entities that translate ideas into products and services. In the intervening years, another new force also greatly facilitated globalization: the rapid growth of the Internet and cheap wide-bandwidth international communication. Today, complex design activities can take place in locations quite removed from manufacturing, other business functions and the consumer. Indeed, there is now ample opportunity for real-time communication between business functions that are quite independent of their specific locations. For example, software are development, with all its changes and complications, can to a considerable extent be done overseas for a U.S. customer. Foreign call centers can respond instantly to questions from thousands of miles away. The result is that low-wage workers in the Far East and in some other countries are coming into even more direct competition with a much wider spectrum of U.S. labor: unskilled in the case of call centers; more highly skilled in the case of programmers.

单选题Rising College Selectivity Rising college selectivity doesn"t mean that students are smarter and more serious than in the past, although a few clearly are. It"s a function of excess demand for higher education, occurring at a time of increased financial privatization of the industry. The recession has only increased demand. The vast majority of students aren"t going to college because of a thirst for knowledge, or even for the cultural and social adventure they hope to have. They"re there because they need a job, and they need to get the credentials—and, one hopes, the knowledge and skills behind the credentials—that will get them into the labor market. As higher education has become a seller"s market, the institutions in a position to do so are doing what comes naturally: raising their tuitions and their admissions requirements, but at the expense of contributing to the national goal to increase college attainment. The result is that the United States is losing ground in the international race for educational talent, because although we have some of the best institutions in the world, the whole is less than the sum of its parts. The increasing stratification of higher education is happening on the spending side, as well. As the selective institutions have become more expensive and less attainable, the rest have had to struggle with the responsibility to enroll more students without being paid to do so. Gaps between rich and poor have grown even more dramatically than gaps in entering test scores. While spending is a poor measure of educational quality, we can"t seriously expect to increase educational attainment if we"re not prepared to do something to address these growing inequities in funding. That said, the educational policy problem in our country is not that the elite institutions are becoming more selective. They are what they are, and they"re getting more like themselves all the time. The problem is on the public policy side. The president and many governors have set a goal to return America to a position of international leadership in educational attainment. It"s the right goal, we just need a financing strategy to get there. That doesn"t mean just more money, although some more money will be needed. It also means better attention to effectiveness and to efficiency, and to making sure that spending goes to the places that will make a difference in educational attainment. We know how to do it, if we want to.

单选题Cancellation of the flight {{U}}pressed{{/U}} many passengers to spend the night at the airport.

单选题It was no match that his car was seen near the bank at the time of the robbery.

单选题What is your goal in life? A. plan B. aim C. arrangement D. idea

单选题The bricklayer is working on the house today.

单选题Their {{U}}sole{{/U}} fault was a failure to recognize all the factors involved.

单选题The dominant theme in the music is of tranquility and peacefulness. A．major B．final C．copious D．sluggish

单选题The Railway Labor Mediation Act of 1926 supported the use of collective bargaining to avert interruption of rail service.

单选题U. S. Blacks Hard-hit by Cancer Death rates for cancer are falling for all Americans, but black Americans are still more likely to die of cancer than whites, the American Cancer Society said Monday In a special report on cancer and blacks, the organization said blacks are usually diagnosed with cancer later than whites, and they are more likely to die of the disease. This could be because of unequal (不平等的) access to medical care, because blacks are more likely to have other diseases as well, and perhaps because of differences in the biology (生物学) of the cancer itself, the report added. "In general, black Americans have less hope of surviving five years after diagnosis than whites for all cancer sites and all stages of diagnosis," the report said. "In describing cancer statistics for black Americans, this report recognizes that many of the differences associated with race may be caused by unfair social and economic differences and unequal access to medical care." The cancer society said blacks should be encouraged to get check-ups (体格检查) earlier, when cancer is more treatable, and it said more research is needed to see if biological differences play a role. "The new statistics emphasize the continuing importance of wiping out these unfair social differences through public policy and education efforts," the organization said in a statement. But it also noted a drop in cancer death rates. "Cancer death rates in both sexes for all sites combined have dropped greatly among black Americans since 1992, as have incidence rates (发生率) ," said the report.