考博易错题(2019/1/29) |
第1题:The day was crisp and sharp, but suddenly a misty rain began to fall and ______ the landscape.
A.hid B.blurred C.relieved D.belittled |
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第2题:Attacking an increasingly popular Internet business practice, a consumer watchdog group Monday filed a complaint with the Federal TradeCommission, asserting that many online search engines are concealing the impact special fees have on search results by Internet users.CommercialAlert, a 3-year-old group founded by consumer activist Ralph Nader, asked the FTC、to investigate whether eight of the Web’s largest search engines are violating federal laws against deceptive advertising. The group said that the search engines are abandoning objective formulas to determine the order of their listed results and selling the top spots to the highest bidders without making adequate disclosures to Web surfers. The complaint touches a hot-button issue affecting tens of mil-lions of people who submit search queries each day. With more than 2 billion pages and more than 14 billion hyperlinks on the Web, search requests rank as the second most popular online activity afterE-mail. The eight search engines named inCommercialAlerts complaint are: MSN, owned by Microsoft; Netscape, owned byAOL Time Warner;Directhit, owned byAsk Jeeves; HotBot and Lycos, both owned by Term Lycos;AhaVista, owned byCMGI; LookSmart, owned by LookSmart; and iWon, owned by a privately held company operating under the same name. "Portland, Ore-basedCommercialAlert could have named more search engines in its complaint, but focused on the biggest sites that are auctioning off spots in their results," said Gary Ruskin, the group’s executive director. "Search engines have be-come central in the quest for learning and knowledge in our society. The ability to skew the results in favor of hucksters without telling consumers is a serious problem," Ruskin saiD、By late Monday afternoon, three of the search engines had responded to TheAssociated Press’ inquiries about the complaint. Two, LookSmart andAltaVista, denied the charges. Microsoft spokesman Matt Pilla said MSN is delivering "compelling search results that people want." The FTC、had no comment about the complaint Monday. The complaint takes aim at the new business plans embraced by more search engines as they try to cash in on their pivotal role as Web guides and reverse a steady stream of losses. To boost revenue, search engines in the past year have been accepting payments from businesses interested in receiving a higher ranking in certain categories or ensuring that their sites are reviewed more frequently. The primary aim of some companies sponsoring the search engines is to ______ . A、cash in on their important role as Web guides B.boost their avenue C.reverse a series of losses D.have their sites visited by the internet users more |
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第3题:It was all agreed that the first problem the new government would have to ______ was unemployment.
A.grip B.tackle C.discern D.manipulate |
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第4题:{{B}}(3){{/B}}
B.spears C.various kinds of food D.property taken from the enemy | |
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第5题:Thousands of years ago man used handy rocks for his surgical operations. Later he used sharp bone or horn, metal knives and more recently, rubber and plastiC、And that was where we stuck, in surgical instrument terms, for many years. In the 1960s a new tool was developed, one which was, first of all, to be of great practical use to the armed forces and industry, but which was also, in time, to revolutionize the art and science of surgery. The tool is the laser and it is being used by more and more surgeons all over the world, for a very large number of different complaints. The word laser means: LightAmplification by StimulatedEmission of Light.As we all know, light is hot; any source of light ——from the sun itself down to a humble match burning ——will give warmth.But light is usually spread out over a wide are A、The light in a laser beam, however, is concentrateD、This means that a light with no more power than that produced by an ordinary electric light bulb becomes intensely strong as it is concentrated to a pinpoint-sized beam. Experiments with these pinpoint beams showed researchers that different energy sources produce beams that have a particular effect on certain living cells. It is now possible for eye surgeons to operate on the back of the human eye without harming the front of the eye, simply by passing a laser beam right through the eyeball. No knives, no stitches (刀口缝合), no unwanted damage ——a true surgical wonder. Operations which once left patients exhausted and in need of long periods of recovery time now leave them feeling relaxed and comfortable. So much more difficult operations can now be trieD、 The rapid development of laser techniques in the past ten years has made it clear that the future is likely to be very exciting. Perhaps some cancers will be treated with laser in a way that makes surgery not only safer but more effective.Altogether, tomorrow may see more and more information coming to light on the diseases which can be treated medically. The laser beam is so strong because ______. A、it is composed of a concentrated beam of light B.its heat is increased by the heat of the sun C.it can be plugged into an ordinary light fitting D.it sends out heat in many different directions |
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