单选题People ______ believe that the sun went around the earth.

单选题As far as rank is concerned, an associate professor is ______ to a professor, though they are almost equally knowledgeable.

单选题Nobody can touch that box without permission because there is ______ in it.

单选题All ______ is a continuous supply of the basic necessities of life.

单选题What does the passage mainly concern?

单选题The rigor of the winter in Russia was often described by Mogol. A. harshness B. perturbation C. dismay D. pessimism

单选题For a late drink, come to our nightclub, ______ stays open until 4:00

单选题There are few electronic applications ______ to raise fears regarding future employment opportunities than robots. A. likely B. more likely C. most likely D. much likely

单选题Research universities have to keep up with the latest computer and scientific hardware ______ price.

单选题That job is quite difficult. I can understand why you have ______ so many problems. A. run for B. run over C. run off D. run into

单选题 It is increasingly believed among the expectant parents that prenatal education of classical music can ______ future adults with appreciation of music.

单选题After searching for half an hour, she realized that her glasses______ on the table all the time:

单选题Man: Let's see if the basketball has started yet.Woman: Started? It must be clear who is winning by now.Question: What does the woman mean? A. The same team always wins. B. The game began some time ago. C. They had better see who is winning. D. Now is a good time to start playing.

单选题 Looking in from abroad, much of the world has historically been baffled by America's gun laws. In no other country can a mentally unstable person access a Glock pistol as easily as suspected Arizona shooter Jared Loughner did. And in no other country is the number of people who own guns as high as in the United States, where there are 90 guns for every 100 people. The Second Amendment that guarantees the right to bear arms is part of America's founding fabric. So is senseless violence brought about by guns also American? That was the question posed at today's White House press briefing by Russian journalist Andrei Sitov, the Washington Bureau chief for Moscow-based Itar-Tass. Predictably, the question irked (惹恼) many in the room, including White House Press Secretary Robert Gibbs. 'I think there's agreement on all sides of the political spectrum that violence is never, ever acceptable,' Gibbs said from the podium. What happened in Tucson 'was not in keeping with the important bedrock (基础的) values on which this country was founded,' he said. Several other reporters scoffed (嘲笑) at the suggestion as well. But much more scoffing over the last week came from overseas, where foreign news agencies reacted to the Tucson tragedy with an element of saying 'we could have predicted this'. 'The Tucson shooting, in which Congresswoman Gabrielle Giffords was shot in the head, is another tragic commentary on the poisonous political climate that has developed in the United States, allied to the country's pervasive gun culture,' read an editorial published in New Zealand. In The Sydney Morning Herald, journalist Rod Tiffen stated what seems like an obvious point missed over the past week: 'There is a strong correlation between the number of guns in a society and deaths resulting from them.' Ed Pilkington, a writer for the UK's Guardian asked it more simply, 'What is it with guns and America? Why does the most advanced democracy, which prides itself on being a bastion of reason and civilisation in a brutal and ugly world, put up with this carnage in its own backyard?' Is Sitov right? Is occasional violent tragedy an unpleasant byproduct of a free society? I walked out of the briefing room with Sitov, who appeared to realise the impact that his question had on the roomful of Americans. 'It's an obvious question and nobody asks that question,' he told me through his thick Russian accent. 'This is a cost that your country pays for freedom.'

单选题 'Does my smile look big in this?' Future fitting-room mirrors in clothing stores could subtly adjust your reflection to make you look—and hence feel—happier, encouraging you to like what you see. That's the idea behind the Emotion Evoking System developed by Shigeo Yoshida and colleagues at the University of Tokyo in Japan. The system can manipulate your emotions and personal preferences by presenting you with an image of your own smiling or frowning face. The principle that physiological (生理的) changes can drive emotional ones—that laughter comes before happiness, rather than the other way around—is a well-established idea. The researchers wanted to see if this idea could be used to build a computer system that manipulates how you feel. The system works by presenting the user with a webcam (网络摄像头) image of his or her face—as if they were looking in a mirror. The image is then subtly altered with software, turning the comers of the mouth up or down and changing the area around the eyes, so that the person appears to smile or frown. Without telling them the aim of the study, the team recruited 21 volunteers and asked them to sit in front of the screen while performing an unrelated task. When the task was complete the participants rated how they felt. When the faces on screen appeared to smile, people reported that they felt happier. Conversely, when the image was given a sad expression, they reported feeling less happy. Yoshida and his colleagues tested whether manipulating the volunteers' emotional state would influence their preferences. Each person was given a scarf to wear and again presented with the altered webcam image. The volunteers that saw themselves smiling while wearing the scarf were more likely to report that they liked it, and those that saw themselves not smiling were less likely. The system could be used to manipulate consumers' impressions of products, say the researchers. For example, mirrors in clothing-store fitting rooms could be replaced with screens showing altered reflections. They also suggest people may be more likely to find clothes attractive if they see themselves looking happy while trying them on. 'It's certainly an interesting area,' says Chris Creed at the University of Birmingham, UK. But he notes that using such technology in a shop would be harder than in the lab, because people will use a wide range of expressions. 'Attempting to make slight differences to these and ensuring that the reflected image looks believable would be much more challenging,' he says. Of course, there are also important ethical questions surrounding such subtly manipulative technology. 'You could argue that if it makes people happy what harm is it doing?' says Creed. 'But I can imagine that many people may feel manipulated, uncomfortable and cheated if they found out.'

单选题The world's governments have done ______ nothing to combat the threat of nuclear accidents.

单选题Harry likes eating very much but he isn't very ______ about the food he eats.

单选题What is the author's attitude toward capital punishment?

单选题—I cannot find Tom anywhere. — He _____ have been off long. I heard him make a call just now.

单选题 __ the English examination i would have gone to the concert last night.