C搜索结果　/　共找到与关键字(词)“C”相关的网站3363个

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  Sciencemag

  International weekly science journal, published by the American Association for the Advancement of Science (AAAS).

  http://Sciencemag.org/
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  收录时间：2025-06-04
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  Scientificamerican

  Monthly magazine of science. Website includes articles from past issues.

  http://Scientificamerican.com/
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  收录时间：2025-06-04
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  Acs

  Primary professional organization for chemists and related occupations.

  http://Acs.org/
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  收录时间：2025-06-08
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  Livescience

  This site explains the latest research on the planet, from human biology to the animal world and the forces of nature.

  http://Livescience.com/
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  收录时间：2025-06-04
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  Sciencedirect

  An information source for scientific, technical, and medical research. Subscription required for some sections.

  http://Sciencedirect.com/
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  收录时间：2025-06-06
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  Researchgate

  Social community for researchers, fostering collaboration and knowledge exchange among researchers worldwide.

  http://Researchgate.net/
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  收录时间：2025-06-04
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  Census

  Includes data for the latest Census of Population and Housing, the U.S. and World Population clocks.

  http://Census.gov/
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  收录时间：2025-05-25
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  Screwfix

  A Trade & DIY supplier selling powertools, electrical & plumbing hardware, kitchens & bathrooms, fixings, sealants etc.

  http://Screwfix.com/
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  收录时间：2025-06-05
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  Ancestry

  Family tree, genealogy and census records.

  http://Ancestry.co.uk/
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  收录时间：2025-06-04
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  Sacramento.craigslist

  Non-commercial bulletin board for events, jobs, housing, personal ads and community discussion.

  http://Sacramento.craigslist.org/
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  收录时间：2025-06-04