C搜索结果　/　共找到与关键字(词)“C”相关的网站3370个

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  Unitconversion

  Provides a free online conversion tool to easily convert between different units of measurement in more than 70 categories.

  http://Unitconversion.org/
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  收录时间：2025-01-16
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  French.about

  Help with grammar, vocabulary, pronunciation and phrases for students and travelers learning French, plus links to online courses and translations.

  http://French.about.com/
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  收录时间：2025-01-17
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  Blast.ncbi.nlm

  Suite of alignment tools to detect conserved sequences, similar domain architecture, gene expression profiles, and SNP using protein or nucleotide targets. Includes support and archiving of strategies at NCBI, Bethesda, Maryland.

  http://Blast.ncbi.nlm.nih.gov/
  百度权重：
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  收录时间：2024-11-10
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  Ideas.repec

  Central index of economics research, including working papers, articles and software code from the University of Connecticut.

  http://Ideas.repec.org/
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  收录时间：2024-11-06
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  Cas

  Produces the world's largest databases of chemical information.

  http://Cas.org/
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  收录时间：2024-11-06
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  Metservice

  A Governmental agency that gathers, analyses and provides weather information for the public of New Zealand, and for a wide range of domestic and foreign commercial customers.

  http://Metservice.com/
  百度权重：
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  收录时间：2025-01-26
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  Convertworld

  Interactive calculators used to for converting between currencies, weight, volume, mass, time, distance and more.

  http://Convertworld.com/
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  收录时间：2024-11-06
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  Pubchem.ncbi.nlm.nih

  Free database of chemical structures of small organic molecules and information on their biological activities. Linked with NIH PubMed/Entrez information retrieval system.

  http://Pubchem.ncbi.nlm.nih.gov/
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  收录时间：2025-01-19
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  Statcan.gc

  Provides economic, social and census data, related publications, news, and education resources.

  http://Statcan.gc.ca/
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  收录时间：2025-01-17
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  Sciencebuddies

  Topic Selection Wizard helps students pick a project topic. Experienced scientists answer student questions in an online forum. Step-by-step project help guide.

  http://Sciencebuddies.org/
  百度权重：
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  收录时间：2024-11-06