单选题Many disciplines of science are actually ______ rather than becoming farther apart.

单选题Cupta has estimated that Indian marriages based on love occur among less than one percent of the population because______

单选题The worlds first large electronic computer (1946) ______. A．was built after the World War Ⅱ B．was used for over 10 years C．contained 25000 valves D．could perform only 10000 calculations per second

单选题Prince Charles, the longest-waiting ______to the throne in British history, has spoken of his 'impatience' to get things done.(2013年北京大学考博试题)

单选题—Is Tom still smoking ? —No. By next Saturday he ______ for a whole month without smoking a single cigarette.A. will goB. will have goneC. will have beenD. has been going

单选题Cindy: Thanks for all your help. Joe: No problem. Have a good day. Cindy: ______ Thanks again. Bye. A. I will. B. You too. C. It will be. D. I think so.

单选题I don't trust the man; he's not______.

单选题A: Could you get me Extension 6459, please? B: ______. A. Hello? This is Tom Brown. B. Sure. Here you are. C. Sorry. The line is engaged. D. John Smith's office. What can I do for you?

单选题The rocks are carefully crushed ______ the diamonds are not destroyed.

单选题Teachers encourage the students to use dictionaries so that ______.

单选题Whenever a camera was pointed at her, Marilyn would instantly ______ herself into a radiant star. A. transport B. transfer C. transform D. transgress

单选题The color______from yellow through green to black.

单选题There is few evidence that children in language classrooms learn foreign languages any better than adults in similar classroom situations. A. B. C. D.

单选题 When Thomas Keller, one of America's foremost chefs, announced that on Sept. 1 he would abolish the practice of tipping at Per Se, his luxury restaurant in New York City, and replace it with a European--style service charge, I knew three groups would be opposed: customers, servers and restaurant owners. These three groups are all committed to tipping—as they quickly made clear on Web sites. To oppose tipping, it seems, is to be anticapitalist, and maybe even a little French. But Mr. Keller is right to move away from tipping—and it's worth exploring why just about everyone else in the restaurant world is wrong to stick with the practice. Customers believe in tipping because they think it makes economic sense. "Waiters know that they won't get paid if they don't do a good job" is how most advocates of the system would put it. To be sure, this is a tempting, apparently rational statement about economic theory, but it appears to have little applicability to the real world of restaurants. Michael Lynn, an associate professor of consumer behavior and marketing at Cornell's School of Hotel Administration, has conducted dozens of studies of tipping and has concluded that consumers' assessments of the quality of service correlate weakly to the amount they tip. Rather, customers are likely to tip more in response to servers touching them lightly and leaning forward next to the table to make conversation than to how often their water glass is refilled—in other words, customers tip more when they like the server, not when the service is good. Mr. Lynn's studies also indicate that male customers increase their tips for female servers while female customers increase their tips for male servers. What's more, consumers seem to forget that the tip increases as the bill increases. Thus, the tipping system is an open invitation to what restaurant professionals call "upselling": every bottle of imported water, every espresso and every cocktail is extra money in the server's pocket. Aggressive upselling for tips is often rewarded while low-key, quality service often goes unrecognized. In addition, the practice of tip pooling, which is the norm in fine-dining restaurants and is becoming more common in every kind of restaurant above the level of a greasy spoon, has ruined whatever effect voting with your tip might have had on an individual waiter. In an unreasonable outcome, you are punishing the good waiters in the restaurant by not tipping the bad one. Indeed, there appears to be little connection between tipping and good service.

单选题Many of those who come from the countryside find it difficult to adapt to the rapid ______ of modern life.

单选题In England during the mid-1600s, a group of English farmers led by Gerrard Winstanley united to form an organization known as the True Levelers. Their stated goal was to change the laws regarding estate and ownable property so that all willing citizens would be able to support themselves through farming. At the time in England, there was great social unrest and food prices were very high. Most of the land throughout the country was strictly divided and controlled by a small number of the elite ruling class. The True Levelers believed that they could "level" the different classes of society by creating communities in which the farmable private land was owned by all and available for agrarian purposes. To fight the unequal system that only benefited the wealthy landowners, the True Levelers defiantly occupied~ private and public land and began farming. Because much of farming involves plowing and planting, these groups of communal farmers became better known by the name Diggers. Their hope was that their act of rebellion would stir the sympathies of the other poor people throughout the country. The Digger philosophy was to unite all the poor and working classes behind the idea that the land should be shared. If thousands of common English folk began to claim reasonable access to the land, the powerful landowners would be unable to stop them. In practice for a brief time, Digger communities flourished as they welcomed anyone who wished to merely grow their own food and live freely. Sadly, the landowners believed the Diggers were a threat and began to take steps to preserve their control over the farmable land. Many members of the Digger communities were harassed, threatened, and jailed. Planting vegetables was viewed as a rebellious act and dealt with as if it were a crime. The majority of land reverted back into the hands of landowners. Ultimately, most of the Digger communities that had briefly thrived were disbanded. In their place, other political groups arose and continued to protest the various injustices of the time. The Digger name continues to the present day in some English folk songs as a reminder of their ideals.

单选题Let me reiterate my point.

单选题In Tokyo trading today the U.S. dollar fell and Japanese ______ dropped to their lowest level in three months. A. dealers B. shares C. standards D. ballots

单选题This article shows that ______.

单选题These objects were found at the______of the crime.