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  2. CTT Correios de Portugal, S.A. - Wikipedia

    en.wikipedia.org/wiki/CTT_Correios_de_Portugal,_S.A.

    CTT's current logo since 4 October 2004. CTT – Correios de Portugal, S.A. ( lit. 'CTT – Post of Portugal') is a Portuguese company that operates as both the national postal service of Portugal and a commercial group with subsidiaries operating in banking, e-commerce, and other postal services. It was founded in 1520 by King Manuel I of ...

  3. List of United States Navy ratings - Wikipedia

    en.wikipedia.org/wiki/List_of_United_States_Navy...

    United States Navy ratings are general enlisted occupations used by the U.S. Navy since the 18th century, which denote the specific skills and abilities of the sailor. Each naval rating has its own specialty badge, which is worn on the left sleeve of dress uniforms of enlisted personnel. U.S. naval ratings are the equivalent of military ...

  4. CTT (disambiguation) - Wikipedia

    en.wikipedia.org/wiki/CTT_(disambiguation)

    CTT (disambiguation) CTT may also refer to: CTT Correios de Portugal, S.A., the national postal service of Portugal. CTT (Macau), the Macau Post Office. Cycling Time Trials, the governing body for time trialling in the UK. Classical test theory. Columbia TriStar Television.

  5. Roads in Portugal - Wikipedia

    en.wikipedia.org/wiki/Roads_in_Portugal

    Roads in Portugal. Roads in Portugal are defined by the Plano Rodoviário Nacional (PRN, English: National Road Plan ), which describes the existing and planned network of Portuguese roads. The present plan in force is the 2000 National Road Plan (PRN 2000), approved in 1998. It replaced PRN 1985, which itself had replaced PRN 1945.

  6. For certain medical conditions, imagery from an X-ray or ultrasound test isn’t enough. A computed tomography (CT) scan provides a more detailed view of your tissues, blood vessels, and bones.

  7. Cryptologic technician - Wikipedia

    en.wikipedia.org/wiki/Cryptologic_technician

    Cryptologic technician (CT) is a United States Navy enlisted rating or job specialty. The CT community performs a wide range of tasks in support of the national intelligence-gathering effort, with an emphasis on cryptology and signal intelligence related products. Most CT personnel are required to obtain and maintain security clearances.

  8. Chest Tube Insertion: Purpose, Procedure & Risks - Healthline

    www.healthline.com/health/chest-tube-insertion

    A chest tube can help drain air, blood, or fluid from the pleural space, which is the space surrounding your lungs. Inserting a chest tube is called a chest tube thoracostomy. It’s typically an ...

  9. Classical test theory - Wikipedia

    en.wikipedia.org/wiki/Classical_test_theory

    Classical test theory. Classical test theory (CTT) is a body of related psychometric theory that predicts outcomes of psychological testing such as the difficulty of items or the ability of test-takers. It is a theory of testing based on the idea that a person's observed or obtained score on a test is the sum of a true score (error-free score ...