单词：model network
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[00:04.31]For Questions 6-10,you'll hear a lecture on Internet. [00:09.87]While you listen, [00:12.83]complete the sentences or answer the questions. [00:17.87]Use not more than 3 words for each answer. [00:22.52]You now have 25 seconds to read the s
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[00:05.69]Before listening to each one,you will have time to read [00:10.14]the questions related to it. [00:13.90]While listening,answer each question by choosing A,B,C or D. [00:20.24]After listening, [00:23.41]you will have time to check your answ
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This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Oh what a tangled web we weave. Or so it may seem, because many social networks eventually evolve into one of just two states. We either all get along, o
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With millions of blogs on the internet, don't blame yourself if you can't keep up with them all. Advertisers are having the same problem. They know that there are substantial audiences who get their news, their humor, their gossip from blogs, but, re
2005年NPR美国国家公共电台
BEIJING, Oct. 18 (Xinhuanet) -- Giuliana Rancic, 37-year-old E! News and Style Network host, revealed Monday that she has breast cancer after doctors discovered a tumor during her latest round of in-vitro fertilization. Rancic had planned to wait unt
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An increasingly popular business model lets participating companies give to charity while making a profit. But the approach is blurring the lines between for-profit and not-for-profit organizations and raising questions about the real drivers behind
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