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单选题Being poorly dressed can ______ your chance of getting a job. A. ruin B. eliminate C. reduce D. endanger
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单选题The author thinks that spiders ______.
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单选题The professors wife was in the kitchen preparing a salad and ______ cold meat into neat thin pieces.
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单选题When a system is unjust to the ______, abolition, not reform, is what respect for justice demands. A. end B. excess C. core D. bottom
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单选题The author's main criticism of John Lott is that he ______.
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单选题If you are a fan of science fiction, you've no doubt encountered the term nanotechnology. Yet over the past year also, a series of breakthroughs have transformed nanotech from sci-fi fantasy into a real world. Applied science, in the process, inspired huge investments by business, academia, and government. In industries as diverse as health care, computers, chemicals, and aerospace, nanotech is overhauling production techniques, resulting in new and improved products, some of which may already be in your home or workplace. The inspiration for nanotech goes back to a 1959 speech by the late physicist Richard Feynman, then a professor at the California Institute of Technology, titled "There's Plenty of Room at the Bottom. " Four decades later, Chad Mirkin, a Chemistry professor at Northwestern University's $ 34 million nanotech center, used a nanoscale device to etch most of Feynman's speech onto a surface the size of about 10 tobacco smoke particles. What accounts for the sudden acceleration of nanotechnology? A key breakthrough came in 1990, when researchers at IBM's Almaden Research Center succeeded in rearranging individual atoms at will. Using a device' known as a scanning probe microscope, the team slowly moved 35 atoms to spell the three-letter IBM logo, thus proving Feynman right. The entire Logo was less than three nanometers. Soon, scientists were not only manipulating individual atoms but "spray painting" with them as well. Using a tool known as a molecular beam epitaxy, scientists have learned to create ultra fine films of specialized crystals, built up one molecular layer at a time. This is the technology used today to build read-head components for computer hard drives. The next stage in the development of nanotechnology borrows a page from nature. Building a supercomputer no bigger than a speck of dust might seem an impossible task, until one realizes that evolution solved such problems more than a billion years ago. Living cells contain all sorts of nanoscale motors made of proteins that perform myriad mechanical and chemical functions, from muscle contraction to photosynthesis. In some instances, such motors may be re-engineered, or imitated, to produce products and processes useful to humans. How are these biologically inspired machines constructed? Often, they construct themselves, manifesting a phenomenon of nature known as self assembly. The macromolecules of such biological machines have exactly the right shape and chemical binding preferences to ensure that when they combine they will snap together in predesigned ways. For example, the two strands that make up DNA's double helix match each other exactly, which means that if they are separated in a complex chemical mixture, they are still able to find each other easily.
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单选题Rental housing, which is an important component of price indices, looks likely to moderate in the next year, in part because of an______ of new homes. A. override B. oversupply C. oversight D. overture
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单选题To fund the ______ event and also promote the marketing value of the National Games, the organizing committee set up the Marketing Development Department (MDD). A. beneficent B. expensive C. costly D. luxurious
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单选题She always______the smell of fresh bread with her aunt, who loved baking.
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单选题How did King Henry find out about the plot?
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单选题For many travelers, charter vacations often turn out to cost considerably more than______.
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单选题Imagine the psychological impact upon a foe of encountering squads of seemingly invincible warriors ______ armor and ______ superhuman capabilities.
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单选题{{B}}Passage Three{{/B}} Mixing populism and celebrity, Clinton dances into office with a week-long multimillion- dollar party full of stars, saxophone music and presidential hugs. The Party was held in a way never seen since World War II. Many movie and music stars showed up, offering their wishes to a new administration. They sang songs like "You know, Bill's gonna get this Country straight." "’ 93! You and me! Uni-tee! /Time to partee with Big Bill and Hillaree." The stars came out in constellation because they recognized in Clinton one of their own. Not just that, he plays the saxophone, a little. Or that Hillary is a smart, tough lawyer, like most Hollywood moguls. What matters is that Clinton is a beacon of middle-class charm, a lover of being loved, a believer in the importance of image, metaphor, style. And he is an ace manipulator of media, selling his symbols directly to the people on TV, without the interference of nosy journalists. It all makes for a wondrous '90s blend of show biz and politics: "This is our time," Clinton said in his Inaugural Address. "Let us embrace it." Last week he had an embrace for everyone, and not just the stars. This huggy-bear President needs to feel the public's approval. At one of the balls of the week, Clinton was like the college student who drops in the night before the exam to show he's one of the guys, then sneaks back to his dorm to cram. Perhaps there is as much Nixon in him (the ambition, the intellect) as Kennedy (the charm, the recklessness, his position as centrist custodian of liberal dreams). He will need to be the best of both men if he is to close, as he said last week, "the gap between our words and our deeds." During the gala, actor Edward James Olmos quoted Lincoln: "We must disenthrall ourselves, and then we shall save our country." Clinton, a good student with a good memory, mouthed the words as Olmos spoke them. Clinton must have realized that, in a different sense and different era, America faces the task of disenthralling itself, of shaking off the Hollywood Stardust and facing facts. In 1992 Clinton vended optimism; now he must be careful in saying so. He sold the nation a miracle product, ALL-NEW HOPE: it gives you cleaner, cheaper government with a fresh minty flavor. But if it doesn't get the stains out, the electorate's high hopes could sour into despair. Then the man called Hope will become the man called Hype. All the big stars and better angels will leave him out in the spotlight, stranded, unmasked.
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单选题The doctor did not {{U}}rule out{{/U}} the possibility of food poisoning.
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