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  ______   _    _   __    __     ___      _____   
 /_____// | || | || \ \\ / //   / _ \\   / ____|| 
 `____ `  | || | ||  \ \/ //   / //\ \\ / //---`' 
 /___//   | \\_/ ||   \  //   |  ___  ||\ \\___   
 `__ `     \____//     \//    |_||  |_|| \_____|| 
 /_//       `---`       `     `-`   `-`   `----`  
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發送短信 : It is green, but is it fair? Investigating consumers’ fairness perception of green service offerings