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

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發送短信 : A Network Bidder Behavior Model in Online Auctions: A Case of Fine Art Auctions