单选题Many Americans think a national committee should be formed to discuss ______ to existing mass transit system.

单选题The ancient city of Pompeii lay ______ in the shadow of Mount Vesuvius for more than 1,700 years under a deep layer of volcanic

单选题______ of our personal rhythms, most of us have a productive period between 10

单选题No hero of ancient or modern days can surpass the Indian with his lofty contempt of death and the ______with which he sustains its crudest affliction.

单选题The International Monetary Fund is irrelevant to this crisis the Group of Seven leading industrial countries lacks legitimacy in a world where China, Brazil and other are big players the Bank for international settlement has no operational role.

单选题Considering it's the first time I______the painting, it's not bad; however, it is high time I______ something about home-decorating.

单选题An obvious change of attitude at the top towards women"s status in society will ______ through the current law system in Japan.

单选题They have left New York______good; they"ll never go back and live there again.

单选题It is anticipated that this contract will substantially increase sales over the next three years.

单选题A fable is a {{U}}didactic{{/U}} tale focus on a single character trail. A. an authentic B. a muddied C. an instructive D. an old—fashioned

单选题What do you think of the word-association tests as discussed in Passage 3?

单选题Passage Two In the 1920s, the pioneers of artificial intelligence (AI) predicted that, by the end of this century, computers would be conversing with us at work and robots would be performing our housework. But as useful as computers are, they are nowhere close to achieving anything remotely resembling these early aspirations for humanlike behavior. Never mind something as complex as conversation: the most powerful computers struggle to reliably recognize the shape of an object, the most elementary of tasks for a ten-month-old kid. A growing group of AI researchers think they know where the field went wrong. The problem, the scientists say, is that AI has been trying to separate the highest, most abstract levels of thought, like language and mathematics, and to duplicate them with logical, step-by-step programs. A new movement in AI, on the other hand, takes a closer look at the more roundabout way in which nature came up with intelligence. Many of these researchers study evolution and natural adaptation instead of formal logic and conventional programs. Rather than digital computers and transistors, some want to work with brain cells and proteins. The results of these early efforts are as promising as they are peculiar, and the new nature-based AL movement is slowly but surely moving to the forefront of the field. Imitating the brain's neural network is a huge step in the right direction, says computer scientist and biophysicist Michael Conrad, but it still missed an important aspect of natural intelligence. "People tend to treat brain as if it were made up of color-coded transistors. " He explains, "But it's not simply a clever network of switches. There are lots of important things going on inside the brain cells themselves." Specifically, Conrad believes that many of the brains' capabilities stem from the pattern-recognition proficiency of the individual molecules that make up each brain cell. The best way to build an artificially intelligent device, he claims, would be to build around the same sort of molecular skills. Right now, the notion that conventional computers and software are fundamentally incapable of matching the processes that take place in the brain remains controversial. But if it proves true, then the efforts of Conrad and his fellow AI rebels could turn out to be the only game in town.

单选题Those vicious Hollywood reporters often______movie stars, forever damaging their public images.

单选题A society should not have a strong desire to some utopian ideal, but should strive for something else.

单选题With the Chinese economy expected to continue its strong performance, ability to speak the Chinese language will be an ______ of greater and greater value.

单选题______parents are relying even more heavily on tutors and cram schools to help their children succeed.

单选题Just as it's more than OK to work overtime when it's appropriate, it's also more than OK to be alert ______ other work that needs to be done.

单选题The square itself is five hundred yards wide, five times ______the size of St. Peter's in Rome.

单选题Do not be ______ by what he has said this time.

单选题It is possible for students to obtain (advanced) degrees in English (that) knowing (little) or nothing about traditional (scholarly) methods.