【单选题】
YouTube has built a global reputation as the place to go for video clips of singing cats, laughing babies, reckless drivers, and raucous wedding processionals. But there’s more to the site than pointless (67) ; there is a growing collection of university lectures available, (68) one by a Harvard Business School professor talking about consumer psychology in the (69) , and Cambridge University historian David Starkey (70) the history of the British monarchy. Earlier this year YouTube (71) a new home(首页)for education, YouTube EDU, which started as a volunteer project by company employees seeking a better way to (72) educational content uploaded by U. S. colleges and universities. "Around the world people can, from the comfort of their home, (73) their knowledge on a subject or explore other topics to better themselves (74) ," says YouTube EDU’s Obadiah Greenberg. "I think that is rather (75) ."
One need not be a student to (76) the benefits of higher education anymore. In addition to YouTube EDU, websites like iTunes U, TED, and Academic Earth allow millions of people to (77) lectures by some of the world’s top experts—for free. "There is a real (78) for content that is not just a sneezing-cat video," says Peter Bradwell, a researcher for the British (79) think tank (智囊团)Demos. "There is a growing desire for intellectually (80) material that is easily (81) " MIT’s OpenCourseWare (OCW) offers free access (82) most of the school’s course material and lectures (83) subjects like Anglo-American (84) music. "The beauty of this (85) is that it brings your material to a much (86) audience," says Carolyn Culver, head of strategic communications for Oxford.
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