单选题WhydidBellLabsappointacommitteetoinvestigatesomeoftheclaimsmadebyitsscientists?A.Becauseotherscientistshadraisedquestionsabouttheseclaims.B.Becausesomeofitsscientistshadmadefalseclaimsbefore.C.Becausetheclaimswereveryimportanttothestudyofphysics.D.Becausesomeofitsscientistspublishedtoomanypapersinayear.

单选题The earthquake that occurred in India this year was a major {{U}}calamity{{/U}} in which a great man was lost. A. casualty B. catastrophe C. catalogue D. crusade

单选题Anderson held out his arms to ______ the attack, but the shark grabbed his right forearm and dived.

单选题Today, there are nearly as many educational opportunities in the ______ industry as there are hotels. A. accessibility B. accountability C. hospitality D. affordability

单选题Iran has expanded its uranium enrichment activities ______ UN demands to scrap its nuclear-related programs. A. in defiance of B. in line with C. in return for D. in relation to

单选题The ship will have to______from the shore until this storm passes. A. hold in B. hold up C. hold off D. hold onto

单选题If the patient cannot recover within 24 hours, death would______.

单选题

单选题Individual goals have to {{U}}fit in with{{/U}} the family or business goals as a whole. A. be converted into B. be superior to C. be in accord with D. be different from

单选题The visit of Japanese Prime Minister Shinzo Abe to the Yasukuni shrine outraged China and South Korea.

单选题 I was born on the last day of February. I've always felt sorry for February, squeezed between the big months of January (named for the Roman god Janus, keeper of gateways) and March (after Mars, the god of war). The first Roman calendar, legend has it, had 10 months and no February. Beginning at the vernal equinox (春分) with March, it ended with December. In an agricultural society, winter was of little importance, and thus went undivided. January and February were added about 700 B.C. by the second king of Rome, Numa Pompilius. He made all the months 29 or 31 days, but shortened February, the last month of the year, by giving it only 28. By the time of Julius Caesar, the calendar was three months out of sync with the solar year. This prompted Caesar to announce a new calendar in 46 B.C. Although there is some dispute—some historians say Caesar gave February 29 days--most believe his calendar preserved a 28-day February (with 29 days only in a leap year). Next, it was the church's turn. In 1582 Pope Gregory Ⅻ decreed a new calendar in Europe. Many changes were made, but the Pope passed up yet another chance to grant February equality with the other months. It's messy, even dangerous, changing how we measure time, but Pope Gregory was hardly the last one to try. The League of Nations received over 150 new calendar designs, and the United Nations has considered more proposals since. Just to name a few, there's the 30×11 Calendar (which supersizes December to 35 or 36 days) and the Kluznickian Calendar (which adds the month of Aten, after an Egyptian sun god). Each proposal involves something that supposedly modernizes the calendar. But I have a simpler proposal that won't lead to chaos, and will correct the historical injustices against February: move the last day of January and the last day of March into February to make it a normal month with 30 days, and a respectable 31 on leap years. This would not add or subtract a single day from the calendar year. As an added benefit, making the first three months of the year each 30 days would bring them into closer alignment with the lunar cycle. It's a great idea. And unlike Julius and Augustus, I won't even demand a month named in my honor.

单选题 In 1957, a doctor in Singapore noticed that hospitals were treating an unusual number of influenza-like cases. Influenza is sometimes called "flu" or a "bad cold". He took samples from the throats of patients and in his hospital was able to find the virus of this influenza. There are three main types of the influenza virus. The most important of these are type A and B, each of them having several subgroups. With the instruments at the hospital the doctor recognized that the outbreak was due to a virus in group A, but he did not know the subgroup. Then he reported the outbreak to the World Health Organization in Geneva. WHO published the important news alongside reports of a similar outbreak in Hong Kong, where about 15%-20% the population became ill. As soon as the London doctors received the package of throat samples, doctors began the standard tests. They found that by reproducing itself with very high speed, the virus had grown more than a million times within two days. Continuing their careful tests, the doctors checked the effect of drugs against all the known subgroups of virus type A. None of them gave any protection. This, then, was something new, a new influenza virus, against which the people of the world had no help whatever. Having found the virus they were working with, the two doctors now dropped it into the noses of some specially selected animals, which get influenza much as human beings do. In a short time, the usual signs of the disease appeared. These experiments proved that the new virus was easy to catch, but that it was not a killer. Scientists, like the general public, call it simply Asian flu. The first discovery of the virus, however, was made in China before the disease had appeared in other countries. Various report showed that the influenza outbreak started in China, probably in February of 1957. By the middle of March it had spread all over China. The virus was found by Chinese doctors early in March. But China is not a member of the World Health Organization and therefore does not report outbreaks of disease to it. Not until two months later, when travellers, carried the virus into Hong Kong, from where it spread to Singapore, did the news of the outbreak reach the rest of the world. By this time it was well started on its way around the world. Thereafter, WHO's Weekly Reports described the steady spread of this great virus outbreak, which within four months swept through every continent.

单选题 Passage Two Ties have no practical use at all and most men see them as part of a uniform instead of an independent piece of clothing. But, these small strips of cloth should not be underestimated, fashion experts say. The shirt, suit or jacket are neutral means of expression. But, the tie gives you the final personal touch, experts suggest. In fact, its color also has psychological importance. "Red, for instance, evokes feelings of warmth and intimacy", according to Axel Venn. He's a professor of design at the University of Applied Sciences and Art in Germany. "It also stands for energy, dynamism and strength." Using shades of color requires understanding and sensitivity. Orange is regarded as a lively color. Blue stands for matter-of-fact, solitude and coolness. Shiny yellow stirs amusement. Green is the color of nature and harmony. It's only when the color fits the personal character that it is viewed as authentic. "A lively orange with a black suit and white shirt can look great at a private party or in an artistic environment," Venn says. "In a conservative environment such as in a bank such dress is unsuitable". Imme Vogelsang, a trainer of etiquette in Hamburg, Germany, recommends in business environment low contrasting colors such as wine red, dark green or dark blue. But feminine colors have also become popular. "Light green and a fine rose color play an increasing role. Such colors express innovation and sensitivity." Venn says. Also, patterns that stand out can be an interesting eye catcher in a private environment but are unsuitable in business. "Stripes and small geometric patterns are more appropriate in business," Vogelsang says, "but stripes should never run vertically or horizontally." With diagonal stripes it is important to look at the direction. They should run from the bottom left to the right top. "This symbolizes dynamism. In the opposite direction it shows fear and escapist thoughts./

单选题There is still some reluctance {{U}}on the part of{{/U}} employers to become involved in this project. A. coming from B. resulting in C. focused on D. concerned with

单选题The burglars {{U}}ransacked{{/U}} the room taking anything of value they found. A. demolished B. took over C. inhabited D. thoroughly searched

单选题The fact that a being is going to die does not ______ us to use it as a natural resource for exploitation. A. entitle B. ensure C. endanger D. enhance

单选题The participants of the meeting were astonished by the discrepancy between the mayor's words and his actions． A．difference B．correlation C．conformity D．separation

单选题People weak in character usually {{U}}shudder{{/U}} at the sight of blood. A. shake B. fear C. dislike D. quiver

单选题 Every year, as the price of goods rises, the inflation refuses to {{U}} {{U}} 1 {{/U}} {{/U}}even from the high educational institutions. In the U.S., according to a 2005 survey by the College Board,{{U}} {{U}} 2 {{/U}} {{/U}}at state universities rose by an average of 7.1 percent annually, after a year when inflation grew much less. At private schools it was up 5.9 percent. The survey which {{U}} {{U}} 3 {{/U}} {{/U}}more than 3,000 colleges and universities did not provide dear reasons for the continued increases. It did say that the price of goods and services at universities have risen rapidly. Some of the fastest growth has been in employee health {{U}} {{U}} 4 {{/U}} {{/U}}, and professional salaries. Living expenses on campus have also {{U}} {{U}} 5 {{/U}} {{/U}}. At the university of Southern California student dining hall, a buffet (自助餐) meal cost $5.50 in 2004. But now it's $9. The U.S. government often provides {{U}} {{U}} 6 {{/U}} {{/U}}assistance to students' lunch in primary and high schools, but these favorable policies usually don't {{U}} {{U}} 7 {{/U}} {{/U}}universities. Some students said the food on campus is sometimes even more expensive than that at restaurants {{U}} {{U}} 8 {{/U}} {{/U}}campus. To compensate the rise in tuition and living expenses, the federal and state governments {{U}} {{U}} 9 {{/U}} {{/U}}universities and private sources have provided {{U}} {{U}} 10 {{/U}} {{/U}}for students. Of all the full time undergraduates about 62 percent have a grant covering 30-50 percent of their tuition, according to the College Board.

单选题Any troop of wild animals should be approached {{U}}warily{{/U}}. A. fearlessly B. confidently C. silently D. prudently