单选题The experience of foreign countries is worth learning from and taking for reference.

单选题If I had hurried, I______the plane.

单选题Modem man is careless when disposing ______ his garbage.

单选题Alice Walker's {{U}}graphic{{/U}} depiction of the lives of Black people in the south has established her as one of the most promising contemporary writers in the states.

单选题The landlady could not put up with us because all her rooms were reserved.

单选题Next week you'd better bring all your questions here. We' re going to have a question-and-answer ______. A. section B. service C. session D. course

单选题Table tennis is easy to learn, and, by the same token , boys don''t need a lot of space to practice it.

单选题The two elements______water is made are the gases of oxygen and hydrogen. A. that B. which C. of which D. with which

单选题Which of the following best describes the overall organization of the passage?

单选题The turning point for me is that I finally have the confidence to believe that I can make something of my life, without {{U}}resorting{{/U}} to crime.

单选题The space shuttle program entails the use of sophisticated technology. A. enhances B. develops C. creates D. involves

单选题Although afflicted by______serious eyesight problems, Alicia Alonso was one of______ principal stars of______American Ballet Theater.

单选题An increasing proportion of our population, unable to live without advanced medical {{U}}involvement{{/U}}, will become progressively more reliant on expensive technology.

单选题The officers made it clear that they were letting her go only because that she was old and not because she was above suspicion.

单选题______I realized the consequences, I would never have intended to get involveD． A．If B．When C．Had D．Unless

单选题The result is the emergence of a dozen or so small added value companies around Europe, and Ufragmented/U data sales.

单选题He tried very hard to ______ the authorities of his capabilities and loyalty, only to find that the more he tried, the less they believed him.

单选题The first and most important agents of socialization are the people who care for infants. In the earliest months, messages from nurturers constitute the child's basic understanding of the world around it. This is the infant's first introduction to the language that shapes perception and elicits emotion. Another powerful source of information and socialization is the friendship of peers. Peers are equals that one can deal with on the same level as oneself, whereas parents are superiors. The heavy emotional overlay of family relationships makes some kinds of learning difficult. Much formal socialization is placed in the hands of professionals. Teachers from kindergarten on are specifically designated agents of socialization. Ideally, a teacher is one who has both knowledge and the skills to present it. During the course of teaching their subjects, classroom instructors provide role models and attempt to convey the excitement of learning itself. In earlier times, parents, friends and teachers would comprise the list of primary childhood socializers. Children's books, comics and magazines might also have been mentioned as sources of information on norms and role models. Today one must add three powerful indirect or non-personal socialization agents: radio, movies and television. Many people learn about politics, form a vision of well-being, and develop attitudes towards others from what they see on the screen and hear through the speakers.

单选题An Oil Giant"s Green Dream 石油大亨的绿色梦想 by Bryan Walsh If you filled your tank with gasoline today, or warmed your home with natural gas, there"s a decent chance you sent some money to Abu Dhabi. The capital of the United Arab Emirates (UAE) is blessed with fossil fuels, including the fourth-biggest reserves of oil in the world. Selling that petroleum at record prices has helped Abu Dhabi achieve the highest per-capita GDP in the world—wealth that"s visible in every luxury hotel rising from the desert or spotless Mercedes prowling the streets. All those fossil fuels also mean that Abu Dhabi citizens have among the biggest carbon footprints in the world, and the emirate"s exports are a big, if indirect, contribution to global climate change. So it might come as a surprise to learn that Abu Dhabi is this week hosting the world"s first Future Energy Summit, a three-day gathering of more than 4,000 entrepreneurs, analysts and officials from the alternative energy world, including heavyweights like green designer William McDonough and Icelandic President Olafur Grimsson. (Also present was Prince Charles, who gave a speech via hologram.) But if the idea of an Arab oil power like Abu Dhabi supporting fossil fuel alternatives sounds a bit like a heroin dealer trying to sell methadone, think again. Virtually alone among its Persian Gulf neighbors, Abu Dhabi has embarked on a serious program in alternative energy research, backed with oil money. In 2006 it launched the Masdar Initiative (the name means "source" in Arabic), a multi-pronged scheme that includes a collaborative research institute with the Massachusetts Institute of Technology, support for solar and other kinds of green power within the city itself and a clean energy investment fund worth $250 million. The idea behind Masdar—which organized the Future Energy Summit—is a radical one: prepare Abu Dhabi and the UAE to move beyond fossil fuels. "The UAE wants to be more than just an oil-producing country," says Marc Stuart, the co-founder of the carbon-trading firm EcoSecurities. That will take money, but thanks to record oil prices, money is one thing Abu Dhabi does not lack. At the summit"s opening conference, Abu Dhabi"s Crown Prince Sheikh Mohammad bin Zayed A1 Nahaya announced that the government would channel an additional $15 billion to the Masdar Initiative. Although the money comes with no time frame, and officials wouldn"t say exactly where the funding will go, Masdar also announced that it would join Rio Tinto and British Petroleum to build the world"s first hydrogen power plant, a 500-megawatt operation that would cost at least $2 billion. These are bold plans—especially for a city that had little green experience until recently—but for Abu Dbabi, investing in alternative power is a way to remain a world energy center in the event that concerns over climate change cut into the demand for fossil fuels. "We have a long tradition as a global energy leader and we have the financial resources to develop new fields of energy," said Sultan Ahmed A1 Jaber, Masdar"s CEO. "Leadership entails responsibility." As the summit"s hosts were only too eager to emphasize, when they weren"t announcing a new hydrogen plant, almost every projection of energy use over the next several decades says that fossil fuels aren"t going anywhere. Abu Dhabi will develop hundreds of megawatts of clean solar power, but it will export far more polluting power in oil—because the world will need it and there is nothing else feasible to replace it. "The World Future Energy Summit is nothing less than the future of the world itself," said Jonathan Porritt, founder of the UK sustainability organization Forum for the Future, one of the few speakers at the conference to call for a rapid reduction in fossil fuels. Green dreams are nice, but we need a green reality soon.

单选题This is the______bacon of the first class. A．choose B．choosy C．choice D．choosing