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【C6】
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听力原文： Higher air fares looked more likely Friday as American Airlines, Northwest Airlines and JetBlue Airways went along with competitors' increases that the companies said were necessary to offset rising fuel prices. Airline stocks skidded after a three-week surge pushed the price of crude oil near a record of $67 a barrel during the day, taking jet fuel prices along with it. Airlines have already raised prices several times this year. The latest round of increases began Wednesday night with United Airlines, a unit of UAL Corp. , Delta Air Lines Inc. and Continental Airlines Inc. They were followed Thursday by U.S. Airways Group Inc.
What was the price of a barrel of crude oil on Friday？
【C11】
听力原文： Russia, which is scrambling to contain a bird flu outbreak in Siberia, warned the world on Monday that migrating birds may export the deadly virus to Europe and the Middle East in coming months. The outbreak, previously confined to five remote areas of Siberia, appeared to be moving westward on Monday after the virus hit a major industrial region--Chelyabinsk in the Ural mountains which sever Asia from Europe.
And officials said the virus, which can kill humans, was likely to spread further. Media reported that roads leading to the infected village of Oktyabrskoye in Chelyabinsk had been cordoned off to prevent the virus from spreading further. In other affected regions, police boosted road checks, and 400 domestic birds were culled in Chelyabinsk alone to block the virus that has killed more than 10,000 birds countrywide.
Where did the outbreak of bird flu start？
听力原文： When was the last time that you were able to make a long-distance call for free？ If you said "never", you probably have not been introduced to VOIP or Voice Over Internet Protocol. But, is this new technology as efficient as its counterpart, analog telephone service？ Since the demand for world-wide communication has grown, the internet has become the most popular way of communicating. Although Communication via e-mail seemed to be the cheapest way to do business with those overseas, it wasn't always the most effective. Verbal communication is the best way to build strong relationships and eventually," close the deal". When compared to analog phone service, VOIP is cheaper and has the same quality of service. Since VOIP uses a single network to transfer voice and data, the overall cost per call is cheaper to the service prodder than using two separate networks. When voice and data are transferred together on a single network, the service providers only need to build and maintain one network, thus hire less staff. These companies have also learned to manage both voice traffic and data applications correctly to reduce any sacrifice in quality. Although there is a monthly charge for the service, VOIP phones cost about the same as a regular business phone. With all of its benefits, VOIP should take the place of analog telephone service within a few years.
What is the passage mainly about？
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