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

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發送短信 : Bid-Ask Spreads, Volatility, Quote Revisions and Trades of Thinly Traded Futures Contracts