单选题A: I'm sorry. He's not in his office. B: ______

单选题Fans get angry when they think ______

单选题Man: Is there anything I can do? I'd like to help in some way if I can. Woman: I can't think of anything at the moment. Question: What does the woman mean?

单选题Although he thought he was helping us with the work, he was actually ______.

单选题New research shows that when people"s minds drifted from the task or activity at hand, they reported being less happy than when they were fully engaged in whatever they were doing. The human mind is uniquely capable of wandering—that is, to ponder things that have happened, to anticipate things that will happen, and to plan for things that might happen, explained study author Matthew Killingsworth, a doctoral candidate in psychology at Harvard University. The ability is one of the traits that makes human beings human, he noted. Yet, cognitive wandering comes at a cost, which is that when people are thinking about something other than what they"re doing, they feel less happy, the researchers discovered. "Human beings seem to have this unique capacity to focus on the non-present. They have the ability to reflect on the past, plan for the future and imagine things that might never occur," Killingsworth said. "But at the same time, human beings are clumsy (不得当的) users of this capacity and it tends to decrease, rather than increase, happiness." In the study, 2,250 participants were prompted at random times throughout the day using an iPhone Web application. They were asked how they were feeling, what they were doing, if they were thinking about something other than what they were doing and whether whatever they were contemplating was pleasant (say, daydreaming about a vacation), unpleasant (perhaps worrying about a relationship or finances) or neutral in nature. According to the study, participants spent nearly 47 percent of their waking hours with their mind in a wandering state. "This study shows that our mental lives are pervaded, to a remarkable degree, by the non-present," Killingsworth said. That is, with one notable exception. When describing what they were doing, participants could choose from 22 activities, including walking, eating, shopping, watching TV, commuting and working. Generally, people also reported being the happiest when exercising or conversing. They said they were least happy when resting or sleeping, working or using a home computer. When it came to what they were thinking about, 42.5 percent thought of pleasant topics, 26.5 percent thought of unpleasant topics, while 31 percent were thinking neutral thoughts. And while people who were thinking of pleasant things were happier than people thinking of unpleasant things, even those thinking happy thoughts were less happy than people who were fully engaged in whatever they were doing. Barbara Becker Holstein, a psychologist and "happiness coach" in Long Branch, N.J., said the findings speak to the importance of doing things that provide a sense of purpose and meaning. Such activities make it easier to stay focused, Holstein explained. "This research is incredible and fascinating," Holstein said. "But long before the research, psychologists and many educators recognized that in order to feel a sense of wellbeing, you need to feel you have purpose and meaning in life. That means you are containing the mind around certain projects and activities, and are forcing the mind not to be all over the place all day long."

单选题The man had a rather shady occupation and made a lot of money within a short period of time.

单选题This legislation is critical to sustaining the business upturn.

单选题(Not) too many years ago, it was an (excited) experience (to travel) 25 or 50 miles (away from) home.

单选题The cost of living in Liberia, West Africa, has ______ in the past five years because of the internal conflicts.

单选题What are factors working against another Einstein emerging anytime soon?

单选题In spite of a problem with the {{U}}faulty{{/U}} equipment, some very useful work was accomplished.

单选题Blacks and American Indians______less than 10% of students in the top 30 business schools while they are about 28% of the U.S. population.

单选题The ability to (talk) is one of the (skill) that makes (humans different) from the rest of the (animal world).A. talkB. skillC. humans differentD. animal world

单选题When a new group of future business leaders graduate from the Harvard Business School next week, many of them will be 1 a new oath that says, in effect, greed is not good. Nearly 20 percent of the graduating class have signed "The M. B. A. Oath", a voluntary student-lead 2 that the goal of a business manager is to "serve the greater good". It promises that Harvard M. B. A."s will act 3 , ethically and stop themselves from advancing their "own narrow ambitions" at the expense of others. What has happened to making money? That, of course, is 4 at the heart of the Harvard curriculum. But at Harvard and other top business schools, there has been an 5 of interest in ethics (道德) courses and in student activities—clubs, lectures, conferences—about personal and corporate responsibility and on how to 6 business as more than a money-making enterprise, 7 part of a large social community. Those graduating today, business school professors say, are far more concerned about how 8 affect the community, the lives of their workers and the environment. And business schools are responding with more courses, new centers specializing 9 business ethics and, in the case of Harvard, student-lead efforts to bring about a professional code of conduct for M. B. A."s, not 10 oaths that are taken by lawyers and doctors.

单选题The lady complained about the ______ air-conditioner she bought from the market.

单选题At that time work was {{U}}restricted{{/U}} to slaves and to those few poor citizens who couldn't support themselves.

单选题He was thoughtful and grave—but the orders he gave were enough to Ubewilder/U a crew.

单选题A: Could you do me a favor and take these books to my office?B: ______ .

单选题A: Do you think the sweater looks good on me? B: ______