单选题It can be concluded from the text that______.

单选题I promised to look ______ the matter as soon as I got there.

单选题Richard Satava, program manager for advanced medical technologies, has been a driving force bringing virtual reality to medicine, where computers create a "virtual" or simulated environment for surgeons and others medical Practitioners (从业者). "With virtual reality we'll be able to put a surgeon in every trench," said Satava. He envisaged a time when soldiers who are wounded fighting overseas are put in mobile surgical units equipped with computers. The computers would transmit images of the soldiers to surgeons back in the U. S. The surgeons would look at the soldier through virtual reality helmets (头盔) that contain a small screen displaying the image of the wound. The doctors would guide robotic instruments in the battlefield mobile surgical unit that operate on the soldier. Although Satava's vision may be years away from standard operating procedure, scientists are progressing toward virtual reality surgery. Engineers at an international organization in California are developing a tele-operating device. As surgeons watch a three-dimensional image of the surgery, they move instruments that are connected to a computer, which passes their movements to robotic instruments that perform the surgery. The computer provides feedback to the surgeon on force, textures, and sound. These technological wonders may not yet be part of the community hospital setting but increasingly some of the machinery is finding its way into civilian medicine. At Wayne State University Medical School, surgeon Lucia Zamorano takes images of the brain from computerized scans and uses a computer program to produce a 3-D image. She can then maneuver the 3-D image on the computer screen to map the shortest, least invasive surgical path to the tumor (肿瘤). Zamorano is also using technology that attaches a probe to surgical instruments so that she can track their positions. While cutting away a tumor deep in the brain, she watches the movement of her surgical tools in a computer graphics image of the patient's brain taken before surgery. During these procedures—operations that are done through small cuts in the body in which a miniature camera and surgical tools are maneuvered—surgeons are wearing 3-D glasses for a better view. And they are commanding robot surgeons to cut away tissue more accurately than human surgeons can. Satava says, "We are in the midst of a fundamental change in the field of medicine. /

单选题This style of writing, incidentally, is suggestive of what is called the "newsreel technique" of John Dos Passos.

单选题He did it ______ gratitude for everything she had done for him. A. with B. in C. with regard to D. out of

单选题 数世纪来，无数的外国人到中国旅行。他们都被中国迷人的风景和灿烂的文化所深深吸引。中国拥有高耸的山峰、炙热的沙漠、无垠的草原以及富饶的海洋。有着5000年历史的中国文明是世界上最古老的文明之一。古建筑、传统节日和手工艺品(handicraft)都展示着中国特有的文化。中国还有着50多个独特的民族以及他们各式各样的传统生活方式。

单选题There______ some mistakes in your composition.

单选题To learn is one thing, to teach is ______.

单选题He said ______ was not within his power to answer the question.

单选题 'I want to criticize the social system, and to show it at work, at its most intense.' Virginia Woolf's provocative statement about her intentions in writing Mrs. Dalloway has regularly been ignored by the critics, since it highlights an aspect of her literary interests very different from the traditional picture of the 'poetic' novelist concerned with examining states of reverie and vision and with following the intricate pathways of individual consciousness. But Virginia Woolf was a realistic as well as a poetic novelist, a satirist and social critic as well as a visionary: literary critics' cavalier dismissal of Woolf's social vision will not withstand scrutiny. In her novels, Woolf is deeply engaged by the questions of how individuals are shaped (or deformed) by their social environments, how historical forces impinge on people's lives, how class, wealth, and gender help to determine people's fates. Most of her novels are rooted in a realistically rendered social setting and in a precise historical time. Woolf's focus on society has not been generally recognized because of her intense antipathy to propaganda in art. The pictures of reformers in her novels are usually satiric or sharply critical. Even when Woolf is fundamentally sympathetic to their causes, she portrays people anxious to reform their society and possessed of a message or program as arrogant or dishonest, unaware of how their political ideas serve their own psychological needs. (Her Writer's Diary notes: 'the only honest people are the artists,' whereas 'these social reformers and philanthropists...Harbour...discreditable desires under the disguise of loving their kind...') Woolf detested what she called 'preaching' in fiction, too, and criticized novelist D.H. Lawrence (among others) for working by this method. Woolf's own social criticism is expressed in the language of observation rather than in direct commentary, since for her, fiction is a contemplative, not an active art. She describes phenomena and provides materials for a judgment about society and social issues; it is the reader's work to put the observations together and understand the coherent point of view behind them. As a moralist, Woolf works by indirection, subtly undermining officially accepted mores, mocking, suggesting, calling into question, rather than asserting, advocating, bearing witness: hers is the satirist's art. Woolf's literary models were acute social observers like Chekhov and Chaucer. As she put it in The Common Reader, 'It is safe to say that not a single law has been flamed or one stone set upon another because of anything Chaucer said or wrote; and yet, as we read him, we are absorbing morality at every pore.' Like Chaucer, Woolf chose to understand as well as to judge, to know her society root and branch—a decision crucial in order to produce art rather than polemic.

单选题______box cannot be lifted by a boy of five.

单选题If he ______ the job, he will get more money right away. A. accept B. accepts C. will accept D. has accepted

单选题Pan of his general thrift is to be meticulous in verifying monthly expenses.

单选题My home town has changed a lot ______ I left it. A. since B. after C. when

单选题Don't forget ______this magazine to Lisa this afternoon.

单选题Some women, particularly those over 35 years of age, seem to be more ______ more serious problems such as clots in veins if they smoke heavily.

单选题Fingerprints from an unchangeable ____ despite changes in the individual’s appearance or age. A．mark B．sign C．remark D．signature

单选题Who doesn't love being in love? A true love listens to you talk about work, lets you have that last 28 of pie, and usually remembers to take out the trash. He is ready to forget all kinds of 29 . And he always thinks you're beautiful, even without 30 . Scientists have long been keen to prove that love gives us health 31 too. Researchers can't say for sure that a lover is more important than a loving family or warm friendship when it comes to wellness. But they are learning more about how a romantic partner makes us 32 , with health gains that 33 from faster healing and better control over illnesses to living longer. The benefits of love are 34 and measurable. A study last year from the University of Pittsburgh found that women in good marriages have a much lower risk of heart disease than those in high-stress relationships. The National Love and Health Study has been 35 more than a million subjects since 1979. The study shows that married people live longer, have fewer heart attacks and lower cancer rates, and even get pneumonia less frequently than singles. A new study from the University of Iowa also found that cancer patients with a strong sense of connection to others and in 36 relationship were better able to fight off cancer. It seems that love helps people 37 their immune system. A. range B. makeup C. stronger D. righteous E. tracking F. slice G. health H. strengthen I. benefits J. refreshing K. misunderstandings L. designing M. satisfying N. suggested O. explicit

单选题"I saw Mary in the library yesterday?" "You ______ her, she is still in hospital." A. can't have seen B. mustn't have seen C. could not see D. must not see