单选题In certain types of quartz, bands of color form an irregular pattern.

单选题It's important to remember that nutrients have to work ______, and to take too much of one or another can be useless or even dangerous.

单选题Wall Street in a conceptual sense represents financial and economic power. To Americans, it can sometimes represent elitism and power politics, and its role has been a source of controversy throughout the nation"s history, particularly beginning around the Gilded Age period in the late 19th century. Wall Street became the symbol of a country and economic system that many Americans saw as having developed through trade, capitalism, and innovation. Wall Street has become synonymous with financial interests, often used negatively. During the mortgage mess from 2007—2010, Wall Street financing was blamed as one of the causes, although most commentators blame an interplay of factors. The U. S. government with the Troubled Asset Relief Program bailed out the banks and financial backers with billions of taxpayer dollars, but the bailout was often criticized as politically motivated, and was criticized by journalists as well as the public. One writer in the Huffington Post looked at FBI statistics on robbery, fraud, and crime and concluded that Wall Street was the "most dangerous neighborhood in the United States" if one factored in the $ 50 billion fraud perpetrated by Bernie Madoff. Many complained that the resulting Sarbanes-Oxley legislation dampened the business climate. Interest groups seeking favor with Washington lawmakers, such as car dealers, have often sought to portray their interests as allied with Main Street rather than Wall Street. When the United States Treasury bailed out large financial firms, to ostensibly halt a downward spiral in the nation"s economy, there was tremendous negative political fallout, particularly when reports came out that monies supposed to be used to ease credit restrictions were being used to pay bonuses to highly-paid employees. Analyst William Cohan argued that it was "obscene(肮脏的)" how Wall Street reaped "massive profits and bonuses in 2009" after being saved by "trillions of dollars of American taxpayers" treasure" despite Wall Street"s "greed and irresponsible risk-taking". Washington Post reporter Suzanne McGee called for Wall Street to make a sort of public apology to the nation, and expressed dismay that people such as Goldman Sachs chief executive Lloyd Blankfein hadn"t expressed contrition (侮悟) despite being sued by the SEC(Securities and Exchange Commission)in 2009. McGee wrote that "Bankers aren"t the sole culprits, but their denials of responsibility and the occasional vague and waffling expression of regret don"t go far enough to deflect anger". But chief banking analyst at Goldman Sachs, Richard Ramsden, is "unapologetic" and sees "banks as the dynamos(发电机)that power the rest of the economy". Ramsden believes "risk-taking is vital". Others in the financial industry believe they"ve been unfairly criticized by the public and by politicians. Images of Wall Street and its figures have loomed large. The 1987 Oliver Stone film Wall Street created the iconic figure of Gordon Gekko who used the phrase "greed is good", which had an unexpected cultural influence, not causing them to turn away from corporate greed, but causing many young people to choose Wall Street careers.

单选题In the flint decades of the twentieth century, the individual gem could not be seen, but could be worked with fruitfully.

单选题Before the construction of the road, it was prohibitively expensive to transport any furs or fruits across the mountains. A. determinedly B. incredibly C. amazingly D. forbiddingly

单选题Which of the following best states the author' s attitude toward comics, as expressed in the passage?

单选题If any man here does not agree with me, he should ______ his own plan for tm- proving the living conditions of these people.

单选题The ______ of his first complaint led him to contemplate pursuing stronger methods to obtain satisfaction.

单选题What does the word "discount" (line 6, Par

单选题According to the author, what will NOT happen if trial disappears in the United States? ( )

单选题Sound moves from its source to the ear by wave like fluctuations in air pressure, something like the peaks and troughs or the lowest point of ocean waves. One way to keep from hearing sound is to use ear plugs. Another way is to cancel out the sound with anti-sound. Using a noise maker controlled by a microprocessor, engineers have produced sound waves that are half a wavelength out of phase with those of the noise to be quieted--each peak is matched to a trough, and vice versa. Once the researchers have recorded the offending sound, a microprocessor calculates the amplitude and wavelength of sound that will cancel out the highest and lowest points of the noise. It then produces an electric current that is amplified and fed to a loudspeaker, which produces anti-sound and wipes out the noise. If the anti-sound goes out of synchronization, a microphone picks up the leftover sound and sends it back to the microprocessor, which changes the phase of the anti-sound just enough to cause complete silence. The research team has concentrated on eliminating low-frequency noise from ship engines, which causes fatigue that can impair the efficiency and alertness of the crew, and may mask the warning sounds of alarm and fog signals.

单选题Which of the following statements is FALSE according to the passage?

单选题Abortion. The word alone causes civil conversation to flee the room. This is largely because the prochoice and pro-life positions are being defined by their extremes, by those who scream accusations instead of arguments. More reasonable voices and concerns, on both sides of the fence, are given little attention. For example, pro-life extremists seem unwilling to draw distinctions between some abortions and others, such as those resulting from rape with an underage child. They would make no exception in the recent real-life case of a woman who discovered in her fifth month that her baby would be born dead due to severe disabilities. On the other hand, pro-choice extremists within feminism insist on holding inconsistent positions. The pregnant woman has an unquestionable right to abort, they claim. Yet if the biological father has no say whatsoever over the woman's choice, is it reasonable to impose legal obligations upon him for child support? Can absolute legal obligation adhere without some sort of corresponding legal rights? The only hope for progress in the abortion dialogue lies in the great excluded middle, in the voices of average people who see something wrong with a young girl forced to bear the baby of a rapist. Any commentary on abortion should include a statement of the writer's position. I represent what seems to b ea growing "middle ground" in pre-choice opinion. Legally, I believe in the right of every human being to medically control everything under his or her own skin. Many things people have a legal right to do, however, seem clearly wrong to me: adultery, lying to friends, walking past someone who is bleeding on the street. Some forms of abortion fall into that category. Morally speaking, my doubts have become so extreme that I could not undergo the procedure past the first three months and I would attempt to dissuade friends from doing so. Fanatics on both sides are using reprehensible and deceitful tactics. An honest dialogue on abortion must start by re-setting the stage, by denouncing the approaches that block communication.

单选题Skippers must make a report to customs either in person or by telephone if they have any duty-flee goods on board, or are carrying prohibited goods including animals ______ their port of departure.

单选题Many ethnologists at the turn of century believed that Native American manners and custom were rapidly disappearing, and that it was important to preserve for posterity ______ before the cultures disappeared forever. A. so much information as to adequately record B. as much information as could be adequately recorded C. as much information as could adequately record D. so much information that could be adequately recorded

单选题Some events and phenomena of outer nature ______ ordinary explanation and ordinary experience. A. transcend B. conquer C. prevail D. trespass

单选题Vitamins are organic compounds necessary in small amounts in the diet for the normal growth and maintenance of life of animals, including man. They do not provide energy, 【C1】______do they construct or build any part of the body. They are needed for【C2】______foods into energy and body maintenance. There are thirteen or more of them, and if 【C3】______is missing a deficiency disease becomes【C4】______. Vitamins are similar because they are made of the same elements—usually carbon, hydrogen, oxygen, and【C5】______nitrogen. They are different【C6】______their elements are arranged differently, and each vitamin【C7】______one or more specific functions in the body. 【C8】______enough vitamins is essential to life, although the body has no nutritional use for 【C9】______vitamins. Many people, 【C10】______, believe in being on the "safe side" and thus take extra vitamins. However, a well balanced diet will usually meet all the body's vitamin needs.

单选题 Education is one of the key words of our time. A man, without an education, many of us believe, is an unfortunate victim of adverse circumstances deprived of one of the greatest twentieth-century opportunities. Convinced of the importance of education, modern states "invest" in institutions of learning to get back "interest" in the form of a large group of enlightened young men and women who are potential leaders. Education, with its cycles of instruction so carefully worked out, is punctuated by textbooks--those purchasable wells of wisdom--what would civilization be like without its benefits? So much is certain: that we would have doctors and preachers, lawyers and defendants, marriages and births; but our spiritual outlook would be different. We would lay less stress on "facts and figures" and more on a good memory, on applied psychology, and on the capacity of a man to get along with his fellow citizens. If our educational system were fashioned after its bookless past we would have the most democratic form of "college" imaginable. Among the people whom we like to call savages all knowledge inherited by tradition is shared by all; it is taught to every member of the tribe so that in this respect everybody is equally equipped for life. It is the ideal condition of the "equal start" which only our most progressive forms of modem education try to regain. In primitive cultures the obligation to seek and to receive the traditional instruction is binding to all. There are no "illiterates"--if the term can be applied to people without a script--while our own compulsory school attendance became law in Germany in 1642, in France in 1806, and in England 1876, and is still non-existent in a number of "civilized" nations. This shows how long it was before we deemed it necessary to make sure that 'all our children could share in the knowledge accumulated by the "happy few" during the past centuries. Education in the wilderness is not a matter of monetary means. All are entitled to an equal start. There is none of the hurry which, in our society, often hampers the full development of a growing personality. There, a child grows up under the ever-present attention of his parents, therefore the jungles and the grasslands know of no "juvenile delinquency". No necessity of making a living away from home results in neglect of children and no father is confronted with his inability to "buy" an education for his child.

单选题It is true that the alleged power of dreams to predict future events still remains unproved.