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  1. en.wikipedia.org › wiki › ISO_3166-1ISO 3166-1 - Wikipedia

    5 天前 · ISO 3166-1 ( Codes for the representation of names of countries and their subdivisions – Part 1: Country codes) is a standard defining codes for the names of countries, dependent territories, and special areas of geographical interest. It is the first part of the ISO 3166 standard published by the International Organization for Standardization .

  2. 1 天前 · Google Search (also known simply as Google or Google.com) is a search engine operated by Google. It allows users to search for information on the Internet by entering keywords or phrases. Google Search uses algorithms to analyze and rank websites based on their relevance to the search query. It is the most popular search engine worldwide.

  3. 1 天前 · 2026 Horsens →. The 2024 Thomas & Uber Cup (officially known as the TotalEnergies BWF Thomas & Uber Cup Finals 2024 for sponsorship reasons) was the 33rd edition of the Thomas Cup and the 30th edition of the Uber Cup, the biennial international badminton championship contested by the men and women's national teams of the member associations ...

  4. 2 天前 · A map of Europe, with ISO 3166-1 alpha-2 codes in place of the full names of countries and other territories. 'Exceptional reservations' codes CQ, EU and UK are not shown. ISO 3166-1 alpha-2 codes are two-letter country codes defined in ISO 3166-1, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), to represent countries, dependent territories ...

  5. en.wikipedia.org › wiki › OECDOECD - Wikipedia

    1 天前 · The Organisation for Economic Co-operation and Development (OECD; French: Organisation de coopération et de développement économiques, OCDE) is an intergovernmental organisation with 38 member countries,[1][4] founded in 1961 to stimulate economic progress and world trade. It is a forum whose member countries describe themselves as ...

  6. en.wikipedia.org › wiki › PiPi - Wikipedia

    2 天前 · The number π (/paɪ/; spelled out as "pi") is a mathematical constant that is the ratio of a circle's circumference to its diameter, approximately equal to 3.14159. The number π appears in many formulae across mathematics and physics. It is an irrational number, meaning that it cannot be expressed exactly as a ratio of two integers, although ...

  7. 3 天前 · In probability theory and statistics, a normal distribution or Gaussian distribution is a type of continuous probability distribution for a real-valued random variable.The general form of its probability density function is = ()The parameter is the mean or expectation of the distribution (and also its median and mode), while the parameter is its standard deviation.