单选题The more people you know, the less you have time to see them but you can always reach them on the Internet.

单选题The underlined word "duplicated" in Paragraph 2 is closest in meaning to ______

单选题Despite his occasional fondness for gambling, he is still considered as a good boy ______. A. as the whole B. for the whole C. by the whole D. on the whole

单选题______you were busy, I wouldn't have bothered you with my questions. A．If I realized B．I realized that C．Had I realized D．As I realized

单选题The traffic was entirely, ______ because of a series of traffic accidents on the road. A. crippled B. overthrown C. disabled D. insulated

单选题The very ubiquity of electronic communications can have a surprising {{U}}downside{{/U}}, notes Richard Kohn, a military historian at the University of North Carolina: a wire becomes accustomed to frequent email from her husband, until he can't get to a computer. And then her anxiety increases.

单选题John played basketball in college and ______ active ever since.

单选题Electronic mail has become an extremely important and popular means of communication. The convenience and efficiency of electronic mail are threatened by the extremely rapid growth in the volume of unsolicited commercial electronic mail. Unsolicited commercial electronic mail is currently estimated to account for over half of all electronic mall traffic, up from an estimated 7 percent in 2001, and the volume continues to rise. Most of these messages are fraudulent or deceptive in one or more respects. The receipt of unsolicited commercial electronic mail may result in costs to recipients who cannot refuse to accept such mail and who incur costs for the storage of such mail, or for the time spent accessing, reviewing, and discarding such mail, or for both. The receipt of a large number of unwanted messages also decreases the convenience of electronic mall and creates a risk that wanted electronic mail messages, both commercial and noncommercial, will be lost, overlooked, or discarded amidst the larger volume of unwanted messages, thus reducing the reliability and usefulness of electronic mail to the recipient. Some commercial electronic mail contains material that many recipients may consider vulgar or pornographic in nature. The growth in unsolicited commercial electronic mail imposes significant monetary costs on providers of Internet access services, businesses, and educational and nonprofit institutions that carry and receive such mail, as there is a finite volume of mail that such providers, businesses, and institutions can handle without further investment in infrastructure. Many senders of unsolicited commercial electronic mail purposefully disguise the source of such mall. Many senders of unsolicited commercial electronic mall purposefully include misleading information in the messages' subject lines in order to induce the recipients to view the messages. While some senders of commercial electronic mail messages provide simple and reliable ways for recipients to reject (or 'opt-out' of) receipt of commercial electronic mall from such senders in the future, other senders provide no such 'opt-out' mechanism, or refuse to honor the requests of recipients not to receive electronic mail from such senders in the future, or both. Many senders of bulk unsolicited commercial electronic mail use computer programs to gather large numbers of electronic mail addresses on an automated basis from Internet websites or online services where users must post their addresses in order to make full use of the website or service. The problems associated with the rapid growth and abuse of unsolicited commercial electronic mall cannot be solved by the government alone. The development and adoption of techno-logical approaches and the pursuit of cooperative efforts with other countries will be necessary as well.

单选题Modern industrial methods have supplanted individual crafts, made blacksmiths, stone-carvers, coopers and cobblers virtually extinct.

单选题Only {{U}}the ēlite{{/U}} of society attended the reception for the new governor.

单选题When he was told that he scored 58 in the final examination, he was in a comfort of remorse.

单选题It is a market which sales value might be more than 10 billion yuan .

单选题Wireless and digital technologies provide affordable communication ______ to answer the need for individual access and convenience.

单选题At the World Literacy Center, an organization that works to help people mad, the {{U}}helpers{{/U}} work hard, enabling them to successfully reach their goals.

单选题During an international crisis, many ______ messages will generally emanate from the president's once.

单选题The scientists found what the isolated roots need is ______

单选题No revolutions in technology have as visibly marked the human condition as those in transport. Moving goods and people, they have opened continents, transformed living standards, spread diseases, fashions and folk around the world. Yet technologies to transport ideas and information across long distances have arguably achieved even more they have spread knowledge, the basis of economic growth. The most basic of all these, the written word, was already ancient by 1000. By then China had, in basic form, the printing press, using carved woodblocks. But the key to its future, movable metal type, was four centuries away. The Chinese were hampered by their thousands of ideograms. Even so, they quite soon invented the primitive movable type, made of clay, and by the 13th century they had the movable wooden type. But the real secret was the use of an easily cast metal. When it came, Europe-aided by simple Western alphabets-leapt forward with it. One reason why Asia's civilizations, in 1000 far ahead of Europe's, then fell behind was that they lacked the technology to reproduce and diffuse ideas. On Johannes Gutenberg's invention in the 1440s were built not just the Reformation and the Enlightenment, but Europe's agricultural and industrial revolutions too. Yet information technology on its own would not have got far. Literally: better transport technology too was needed. That was not lacking, but here the big change came much later: it was railways and steamships that first allowed the speedy, widespread dissemination of news and ideas over long distances. And both technologies in turn required people and organizations to develop their use. They got them: for individual communication, the postal service; for wider publics, the publishing industry. Throughout the 19th century, the postal service formed the bedrock of national and international communications. Crucial to its growth had been the introduction of the stamp, combined with a low price, and payment by the sender. Britain put all three of these ideas into effect in 1840. By then, the world's mail was taking off. It changed the world. Merchants in America's eastern cities used it to gather information, enraging far-off cotton growers and farmers, who found that New Yorkers knew more about crop prices than they did. In the American debate about slavery, it offered abolitionists a low-cost way to spread their views, just as later technologies have cut the cost and widened the scope of political lobbying. The post helped too to integrate the American nation, tying the newly opened west to the settled east. Everywhere, its development drove and was driven by those of transport. In Britain, travelers rode by mail coach to posting inns. In America, the post subsidized road-building. Indeed, argues Dan Schiller, a professor of communications at the University of California, it was the connection between the post, transport and national integration that ensured that the mail remained a public enterprise even in the United States, its first and only government-ran communications medium, and until at least the 1870s, the biggest organization in the land. The change has not only been one of speed and distance, though, but of audience. About 200 years ago, a man's words could reach no further than his voice, not just in range but in whom they reached. But, for some purposes, efficient communication is mass communication, regular, cheap, quick and reliable. When it became possible, it transformed the world.

单选题It will outline the technologies, markets, customers, financial requirements, risks, returns and commercial strategies adopted by Uentrants/U into this new industry.

单选题I caught the last bus from town, but Tom came home______than I. A．more late B．more later C．even later D．the later

单选题Finding a job in such a big company has always been______his wildest dreams.