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CHO or C.H.O. may refer to: * The chemical symbol for an aldehyde * Carbohydrate, referencing the three constituent elements, carbon (C), Hydrogen (H) and Oxygen (O) * The ISO 639 code for the Choctaw language * Charlottesville-Albemarle Airport * Chinese hamster ovary cell * ''CHO'', a mnemonic used to teach trigonometry, showing that the cosecant of an angle in a triangle is the ratio of the length of the hypotenuse over the length opposite side * cubohemioctahedron * Center-hand opponent, a term used in the card game bridge: see Glossary of contract bridge terms#C * Chief Household Officer 〔http://youtube-global.blogspot.ie/2010/12/chief-household-officer-using-new-media.html〕 ==See also== * Cho (disambiguation) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「CHO」の詳細全文を読む スポンサード リンク
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