单选题After an hour's discussion, the curriculum designers and computer programmers reached a consensus: that the new package of language learning materials should be both amusing and ______ for the users.

单选题The story of Peter Pan is so fascinating that all the children like it.

单选题Speaker A: Excuse me, could you tell me where the entrance to the subway is?Speaker B: ______

单选题 Since the dawn of human ingenuity, people have devised ever more cunning tools to cope with work that is dangerous, boring, burdensome, or just plain nasty. That compulsion has resulted in robotics—the science of conferring various human capabilities on machines. And ff scientists have yet to create the mechanical version of science fiction, they have begun to come close. As a result, the modern world is increasingly populated by intelligent gizmos whose presence we barely notice but whose universal existence has removed much human labor. Our factories hum to the rhythm of robot assembly arms. Our banking is done at automated teller terminals that thank us with mechanical politeness for the transaction. Our subway trains are controlled by tireless robot-drivers. And thanks to the continual miniaturization of electronics and micro-mechanics, there are already robot systems that can perform some kinds of brain and bone surgery with submillimeter accuracy—far greater precision than highly skilled physicians can achieve with their hands alone. But if robots are to reach the next stage of laborsaving utility, they will have to operate with less human supervision and be able to make at least a few decisions for themselves—goals that pose a real challenge. "While we know how to tell a robot to handle a specific error," says Dave Lavery, manager of a robotics program at NASA, "we can't yet give a robot enough 'common sense' to reliably interact with a dynamic world." Indeed the quest for true artificial intelligence has produced very mixed results. Despite a spell of initial optimism in the 1960s and 1970s when it appeared that transistor circuits and microprocessors might be able to copy the action of the human brain by the year 2010, researchers lately have begun to extend that forecast by decades if not centuries. What they found, in attempting to model thought, is that the human brain's roughly one hundred billion nerve cells are much more talented—and human perception far more complicated—than previously imagined. They have built robots that can recognize the error of a machine panel by a fraction of a millimeter in a controlled factory environment. But the human mind can glimpse a rapidly changing scene and immediately disregard the 98 percent that is irrelevant, instantaneously focusing on the monkey at the side of a winding forest road or the single suspicious face in a big crowd. The most advanced computer systems on the earth can't approach that kind of ability, and neuroscientists still don't know quite how we do it.

单选题My eldest sister went on with the story and young children around her ______ with " wonderful!" from time to time.

单选题The discrepancy in the company accounts is so ______ that no auditor could have failed to notice it.(2003年中国人民大学考博试题)

单选题"The interest ______ be divided into five parts, according to the agreement made by both sides." declared the judge.

单选题The spontaneity of children's artwork A(sets) it B(apart from) the regulated uniformity of C(much) D(of) what otherwise go on in traditional elementary classrooms.

单选题The mother is told that her child is desperately ill--the chance of survival are slim, and the treatment is as dreadful as the disease.

单选题I'd rather you______me a new one instead of having mine repaired as you did.

单选题There seemed little doubt that the spread of a particular cultural trait did follow a specific regular pattern______ A. as a society adopted B. which a society adopted it C. as a society adopted it D. when a society adopted

单选题—I have to go under any circumstances.—If you do follow my advice, I______you.

单选题His address______more attention to the problem of peer influence among the young on their behaviors and outlooks.

单选题A ______ of the long report by the budget committee was submitted to the mayor for approval. A. scratch B. scheme C. schedule D. sketch

单选题After comparing "It was in this house that they met for the first time. " with "They met in this house for the first time. " you may find some difference in meaning, and the difference can be interpreted in terms of collocation.

单选题Napster may decide to ______.

单选题Tom ______ the party as no one saw him there yesterday evening. A) cant attend B) mustnt attend C) wont have attended D) couldnt have attended