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  _____     ______               ___     _    _   
 |__  //   /_   _//   ____      / _ \\  | |  | || 
   / //     -| ||-   |    \\   | / \ || | |/\| || 
  / //__    _| ||_   | [] ||   | \_/ || |  /\  || 
 /_____||  /_____//  |  __//    \___//  |_// \_|| 
 `-----`   `-----`   |_|`-`     `---`   `-`   `-` 
                     `-`

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發送短信 : CRM in e-business : comparative study.