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  ______   _    _    _____       ___     _    _   
 /_____// | || | || |  __ \\    / _ \\  | \  / || 
 `____ `  | || | || | |  \ ||  | / \ || |  \/  || 
 /___//   | \\_/ || | |__/ ||  | \_/ || | .  . || 
 `__ `     \____//  |_____//    \___//  |_|\/|_|| 
 /_//       `---`    -----`     `---`   `-`  `-`  
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發送短信 : The Concept of Strategic Groups as Reference Groups: An Adaptive Model and An Empirical Test