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   _____     ___     _    _    _    _    __   __  
  / ___//   / _ \\  | || | || | || | ||  \ \\/ // 
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 /____//  |_||  |_|| \____//   \____//   /_//\_\\ 
`-----`   `-`   `-`   `---`     `---`    `-`  --`

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發送短信 : Value efficiency in data envelopment analysis: Weighted global measure