c搜索结果　/　共找到与关键字(词)“c”相关的网站3357个

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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：2026-02-01
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  Acs

  Primary professional organization for chemists and related occupations.

  http://Acs.org/
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  收录时间：2025-12-27
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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：2026-01-26
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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：2026-01-01
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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：2026-01-17
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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：2026-02-02
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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：2026-01-28
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  Ancestry

  Family tree, genealogy and census records.

  http://Ancestry.co.uk/
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  收录时间：2026-01-18
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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：2026-01-03
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  Sec

  Access to file complaints with the SEC, news, reports, investor education material, and the EDGAR database of corporate disclosure reports. The SEC protect investors and maintains the integrity of the U.S. securities markets.

  http://Sec.gov/
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  收录时间：2026-01-02