Mylanguageexchange
Language exchange learning via pen pals, text chat and voice chat using free lesson plans.
http://Mylanguageexchange.com/百度权重：
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收录时间：2024-10-23Genetics.utah
Graduate program and current faculty research interests in the areas of developmental, disease, and population genetics; gene regulation; and genome science.
http://Genetics.utah.edu/百度权重：
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收录时间：2024-10-23Ibge.gov
Brasilian Institute of National Statistics and Geography. [English, Spanish]
http://Ibge.gov.br/百度权重：
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收录时间：2024-10-23Geonames
A worldwide geographical database with a search function, browsable maps, and downloadable data files available free under a Creative Commons attribution license.
http://Geonames.org/百度权重：
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收录时间：2024-10-23Geology
A website for students, geologists and those who enjoy the earth. Features large collections of US and world country maps, satellite images, geology dictionary, printable time scale, articles about earth science and much more.
http://Geology.com/百度权重：
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收录时间：2024-10-23R-bloggers
A center for R users to find and read bloggers who write about the statistical programming language, R.
http://R-bloggers.com/百度权重：
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收录时间：2024-10-23Algebra
Interactive homework problems. Topics include Pre-Algebra, linear Algebra and other college Algebra.
http://Algebra.com/百度权重：
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收录时间：2024-10-23News.nationalgeographic
Offers daily news from several areas of science and technology.
http://News.nationalgeographic.com/百度权重：
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收录时间：2024-10-23Moneysavingexpert
Guides, tips articles and a forum about mortgages, credit cards and loans from Martin Lewis.
http://Moneysavingexpert.com/百度权重：
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收录时间：2024-10-23Voyages-sncf
Timetable and reservations for train tickets, purchase railcards.
http://Voyages-sncf.com/百度权重：
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收录时间：2024-10-23
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