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网站简介：Offers over 2,400 free videos from arithmetic to physics, and finance.
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网站简介：Electronically submit the Free Application for Federal Student Aid (FAFSA). All students interested in financial aid for college will need to complete this form.
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网站简介：Information on this interactive Web tool designed to assist teachers and students in producing reference citations for crediting information from other people.
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网站简介：The official site for all manufactured models.
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网站简介：Official site offering sections on the Supreme Court, Courts of Appeal, District Courts and Bankruptcy Courts. Archive of articles, FAQ, employment.
网站简介：Includes lessons, games, puzzles, and offline activities.
网站简介：ScienceDaily features breaking news and videos about the latest discoveries in science, health, the environment, technology, and more -- from major news services and leading universities, scientific journals, and research organizations.
网站简介：All 12 months, plus lunar phases and some holidays noted.
网站简介：Offers space, astronomy and technology content, including information, education, entertainment and business news.
网站简介：Official web portal of the US government. Contains comprehensive information on government resources, services and forms for citizens, businesses and government.
网站简介：Free Dictionary of Synonyms and Antonyms
网站简介：Learning resources for kids at home and at school. Find activities and games.
网站简介：Official website with access to information and services being provided by the Indian Government.t.
网站简介：Monthly magazine about current science and technology.