单选题I want to talk to the person breaking that cup.

单选题As an English major student at one of the most famous universities in Chin

单选题British scientists have found how to diagnose the disease, which causes loss of memory and personality change.

单选题Approximately how much of the Earth's atmosphere is nitrogen?

单选题Ordinary people are now lacking of the scientific knowledge about nutrition.

单选题The salesman approached the house cautiously when he saw the vicious dog at the door.

单选题Her silence is an indication of his disapproval. A. testimony B. statement C. suggestion D. announcement

单选题Proper lighting is a {{U}}necessary{{/U}} for good eyesight even though human night vision can be temporarily impaired by extreme flashes of light.

单选题Pan of his general thrift is to be meticulous in verifying monthly expenses. A. painstaking B. dilatory C. meretricious D. gaudy

单选题The number of days of vacation provided to university employees remain constant from year to year.

单选题 The first 50 years of the next millennium will be critical for the world's population. By 2050 population growth should have leveled off, but by then we'll have 10 billion people -- two-thirds as many again as we have today. The rate of population growth is something we can choose right now, though it's not something that just happens, but a matter of human choice. The choice is a complicated one, with many variables, but it remains a choice. If we want to prevent a population explosion, we should take action now -- or assist the poorer countries to do so. They need better government, better institutions, better labor and capital markets, better schools. Anything that increases the value of women's time and adds to the cost of caring for a child makes a woman less likely to have that child. Since big families are often seen as safety nets for illness and old age, improving poor people's access to insurance, pensions and welfare institutions also has a major impact. This can be as simple as rural credit, providing a means of saving. Finally, there is education -- both for women and, perhaps even more important, for the next generation of children. These steps are there to be taken, but there appear to be some countries that are not seriously trying at the moment. If we cannot achieve that we will certainly not control population. That said, I don't feel pessimistic that we are going to run out of resources: we are becoming more efficient at producing food faster than the rate at which population is increasing. There is, however, a risk that we will wreck the environment so effectively that the world will no longer be an attractive place to live. That really would be a dismal outcome, to reach world population equilibrium only to find we'd destroyed the natural environment in the process.

单选题I would have finished my paper Uif it was/U at all possible, but I was fully occupied the whole of last week.

单选题This colorless gas is called oxygen, who fires burn much better.

单选题The student asked her professor if he would have gone on the space ship he did know earlier. A. if he knew B. if he knows C. he had known D. had he known

单选题The underlined word "intact" in Paragraph 2 is closest in meaning to ______

单选题 Every summer, Jean Piaget retreats to his cabin in the Alps, where he spends most of his days analyzing the mass of research data generated over the past year at his Center for Genetic Epistemology. During long walks along the mountain trails, he mulls over the latest experimental results, and in the cool mountain evenings, he formulates his conclusions. With the approach of fall, he will descend from the mountain, manuscript for a book and several journal articles in hand. This time-honored procedure of careful observation followed by seclusion for thought and synthesis, has enabled him to become the most prolific, if not the most famous psychologist of the century. Piaget has only been widely known in this country since the 1960s, when his works were translated from their original French. But he has been recognized as an expert in the field of cognitive development in Europe since the 1930s. In fact, Piaget's publishing career can be traced to the year 1906, when as a child of ten, he published his careful notes on the habits of an albino sparrow he observed near his home in Switzerland. After his precocious debut as an ornithologist, he took an after school job at the local natural history museum, soon becoming an expert on mollusks. At the age of sixteen he was recommended for a curator's position at the natural history museum in Geneva, but declined in favor of continuing his education. He studied natural science at the University of Neuchatel, obtaining his doctorate at the age of twenty-one. His readings in philosophy stimulated an intense interest in epistemology-the study of humans acquire knowledge. Convinced that cognitive development had a genetic basis. Piaget decided that the best way to approach epistemology would be through its behavioral and biological components. Psychology appeared to be the discipline that best incorporated this approach.

单选题The first 50 years of the next millennium will be critical for the world's population. By 2050 population growth should have leveled off, but by then we'll have 10 billion people -- two-thirds as many again as we have today. The rate of population growth is something we can choose right now, though it's not something that just happens, but a matter of human choice. The choice is a complicated one, with many variables, but it remains a choice. If we want to prevent a population explosion, we should take action now -- or assist the poorer countries to do so. They need better government, better institutions, better labor and capital markets, better schools. Anything that increases the value of women's time and adds to the cost of caring for a child makes a woman less likely to have that child. Since big families are often seen as safety nets for illness and old age, improving poor people's access to insurance, pensions and welfare institutions also has a major impact. This can be as simple as rural credit, providing a means of saving. Finally, there is education -- both for women and, perhaps even more important, for the next generation of children. These steps are there to be taken, but there appear to be some countries that are not seriously trying at the moment. If we cannot achieve that we will certainly not control population. That said, I don't feel pessimistic that we are going to run out of resources: we are becoming more efficient at producing food faster than the rate at which population is increasing. There is, however, a risk that we will wreck the environment so effectively that the world will no longer be an attractive place to live. That really would be a dismal outcome, to reach world population equilibrium only to find we'd destroyed the natural environment in the process.

单选题The pressure on her from her family caused her to resort to the drastic measures.

单选题She bustled about with an {{U}}assumption{{/U}} of authority.

单选题Hillary Rodham Clinton 希拉里·罗德姆·克林顿 During the 1992 presidential campaign, Hillary Rodham Clinton observed, "Our lives are a mixture of different roles. Most of us are doing the best we can to find whatever the right balance is...For me, that balance is family, work, and service. " Hillary Diane Rodham, Dorothy and Hugh Rodham's first child, was born on October 26, 1947.Two brothers, Hugh and Tony, soon followeD．Hillary's childhood in Park Ridge, Illinois, was happy and disciplined.She loved sports and her church, and was a member of the National Honor Society, and a student leader. Her parents encouraged her to study hard and to pursue any career that interested her. As an undergraduate at Wellesley College, Hillary mixed academic excellence with school government. Speaking at graduation, she said, "The challenge now is to practice politics as the art of making what appears to be impossible, possible. " In 1969, Hillary entered Yale Law School, where she served on the Board of Editors of Yale Law Review and Social Action, interned with children's advocate Marian Wright Edelman, and met Bill Clinton. The President often recalls how they met in the library when she strode up to him and said, "If you're going to keep staring at me, I might as well introduce myself. " The two were soon inseparable—partners in moot court, political campaigns, and matters of the heart. After graduation, Hillary advised the Children's Defense Fund in Cambridge and joined the impeachment inquiry staff advising the Judiciary Committee of the House of Representatives. After completing those responsibilities, she"followed her heart to Arkansas," where Bill had begun his political career. They married in 1975. She joined the faculty of the University of Arkansas Law School in 1975 and the Rose Law Firm in 1976. In 1978, President Jimmy Carter appointed her to the board of the Legal Services Corporation, and Bill Clinton became governor of Arkansas. Their daughter, Chelsea, was born in 1980. Hillary served as Arkansas's First Lady for 12 years, balancing family, law, and public service. She chaired the Arkansas Educational Standards Committee, co-founded the Arkansas Advocates for Children and Families, and served on the boards of the Arkansas Children's Hospital, Legal Services, and the Children's Defense FunD． As the nation's First Lady, Hillary continued to balance public service with private life. Her active role began in 1993 when the President asked her to chair the Task Force on National Health Care Reform. She continued to be a leading advocate for expanding health insurance coverage, ensuring children are properly immunized, and raising public awareness of health issues. She wrote a weekly newspaper column entitled "Talking It Over," which focused on her experiences as First Lady and her observations of women, children, and families she has met around the worlD．Her 1996 book It Takes a Village and Other Lessons Children Teach Us As First Lady, her public involvement with many activities sometimes led to controversy. Undeterred by critics, Hillary won many admirers for her staunch support for women around the world and her commitment to children's issues. She was elected United States Senator from New York on November 7, 2000. She is the first First Lady elected to the United States Senate and the first woman elected statewide in New York.