What were some of the factors that contributed to the tulip craze in the Netherlands in the seventeenth century？ Choose 3 answers.

A . They establish routes that will never go down. B . The keep routing tables small. C . They require a great deal of CPU power. D . The allow connectivity to remote networks that are not in the routing table. E . They direct traffic from the Internet into corporate networks.

A . show B . make C . get D . have

A . It confines network instability to a single area of network. B . It increases the routing overhead of the network C . It supports VLSM D . It routes between Autonomous Systems. E . It allows extensive control of routing updates F . None of the above

A . VLANs logically divide a switch into multiple, independent switches at Layer 2. B . Trunk links can carry traffic for multiple VLANs. C . VLAN implementation significantly increases traffic due to added trunking information. D . A VLAN can span multiple switches. E . VLANs typically increase the number of switches needed F . VLANs typically decrease the number of switches needed

A . Filtering can occur based on Layer 3 information. B . Broadcasts are eliminated. C . Routers generally cost less than switches. D . Broadcasts are not forwarded across the router. E . Adding a router to the network decreases latency.

The Shoreditch Theater was the first real theater to be built in England and was erected within the precincts of Holywell Priory, where the players were outside the jurisdiction of the Lord Mayor, for stage plays were forbidden. Companies of players, however, were springing up all over the country, generally under the protection of some nobleman. Amongst these were the Earl of Leicester's Servants, with James Burbage as their manager. Burbage borrowed - 600 from his father-in-law and built the Shoreditch Theater, a round wooden structure, which was afterwards carefully pulled down by his son Richard and re-erected in Southward as the Globe. Richard was the original creator of most of Shakespeare' s great characters, including Hamlet and appeared to have been one of the greatest actors on the English stage. The site of the Shoreditch Theater has recently been determined by a careful survey and is found to have been partly on the site of a furniture factory at the comer of Curtain Road. The Curtain was a rival theater and was so named from the fact that it had a curtain which shut off the stage from the auditorium. This theater had associations with Burbage and Green players from the town of Stratford-on-Avon, and later with the son of a Stratford butcher, who was a boy at school when the theater was built. His name was William Shakespeare. He came to London as a young man and was employed at the Curtain in minor parts, but his chief work was adapting plays, from which he proceeded to write them. Not far away was another theater, the Fortune, aptly-named, for it was owned by Alleyn who made his money from it. The Shoreditch Theater was built in the shape of ______. A．an oblong B．a square C．a circle D．a triangle

B．Insects will some day eat all green vegetables on earth. C．Insects are the most adaptable creatures. D．Insects have developed resistance to both botanical and artificial poisons rapidly.

A．reasons B．results C．causes D．bases

A．not all B．no one C．not everyone D．not every one

A. VLANs logically divide a switch into multiple, independent switches at Layer 2. B. Trunk links can carry traffic for multiple VLANs. C. VLAN implementation significantly increases traffic due to added trunking information. D. A VLAN can span multiple switches. E. VLANs typically increase the number of switches needed F. VLANs typically decrease the number of switches needed

A．radiation B．cancer C．microwaves D．high temperature

An answer to the flint of these has been difficult to obtain. Although it has been possible to infer from the goods and services actually produced what manufacturers and servicing trades thought their customers wanted, only a study of relevant personal documents written by actual consumers will provide a precise picture of who wanted what. We still need to know how large this consumer market was and how far clown the social scale the consumer demand for luxury goods penetrated. With regard to this last question, we might note in passing that Thompson, while rightly restoring laboring people to the stage of eighteenth century. English history, has probably exaggerated the opposition of these people to the inroads of capitalist consumerism in general: for example, laboring people in eighteenth century England readily shifted from home-brewed beer to standardized beer produced by huge, heavily capitalized urban breweries. To answer the question of why consumers became so eager to buy, some historians have pointed to the ability of manufacturers to advertise in a relatively uncensored press. This, however, hardly seems a sufficient answer. McKendrick favors a Veblen model of conspicuous consumptions stimulated by competition for status. The "middling sort" bought goods and services because they wanted to follow fashions set by the rich. Again, we may wonder whether this explanation is sufficient. Do not people enjoy buying things as a form. of self-gratification？ If so, consumerism could be seen as a product of the rise of new concepts of individualism and materialism, but not necessarily of the frenzy for conspicuous competition. Finally, what were the consequences of this consumer demand for luxuries？ McKendrick claims that it goes a long way toward explaining the coming of the Industrial Revolution. But does it？ What for example does the production of high-quality pottery and toys have to do with the development of iron manufacture or textile mills？ It is perfectly possible to have the psychology and reality of a consumer society without a heavy industrial sector. That future exploration of these key questions is undoubtedly necessary should not, however, diminish the force of the conclusion of re cent studies: the insatiable demand in eighteenth century England for frivolous as well as useful goods and services foreshadows our own world. In the first paragraph, the author mentions McKendrick and Plumb most probably in order to _______. A．contrast their views on the subject of luxury consumerism in eighteenth century England B．indicate the inadequacy of historiographical approaches to eighteenth century English history C．give examples of historians who have helped to establish the fact of growing consumerism in eighteenth century England D．support the contention that key questions about eighteenth century consumerism remain to be answered

A．The reason is that there were fewer fish in the river. B．Over-fishing in the river has been prohibited. C．The local Chamber of Commerce tried to preserve the fish. D．The local fishing cooperative decided to reduce its catch. 此题为多项选择题。

Electronic media are having a greater impact on the people's lives every day. People gather more and more of their impressions from representations. Television and telephone communications are linking people to a global village, or what one writer calls the electronic city. Consider the information that television brings into your home every day. Consider also the contact you have with others simply by using telephone. These media extend your consciousness and your contact. For example, the video coverage of the 1989 San Francisco earthquake focused on "live action" such as the fires or the rescue efforts. This gave the viewer the impression of total disaster. Television coverage of the Iraqi War also developed an immediacy. CNN reported events as they happened．This coverage was distributed worldwide. Although most people were far away from these events, they developed some perception of these realities. In 1992, many people watched in horror as riots broke out on a sad Wednesday evening in Los Angeles, seemingly fed by video coverage from helicopters. This event was triggered by the verdict (裁定) in the Rodney King beating. We are now in an age where the public can have access to information that enables it to make its own judgements, and most people, who had seen the video of this beating, could not understand how the jury (陪审团) was able to acquit (宣布……无罪) the policemen involved．Media coverage of events as they occur also provides powerful feedback that influences events. This can have harmful results, as it seemed on that Wednesday night in Los Angeles. By Friday night the public got to see Rodney King on television plea ding, "Can we all get along？" By Saturday, television seemed to provide positive feedback as the Los Angeles riot turned out into a rally for peace. The television showed thousands of people marching with banners and cleaning tools. Because of that, many more people turned out to join the peaceful event they saw unfolding on television. The real healing, of course, will take much longer, but electronic media will continue to be a part of that process. The best title for the passage is______. A．The 1992 Los Angeles Riots B．The Impact of Media on Current Events C．The 1989 San Francisco Earthquake and the 1992 Los Angeles Riots D．How Media Cover Events

A．immediate B． straight C． right D． direct