發送短信

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CAPTCHA:

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

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發送短信 : Graphics Recognition. Recent Advances and New Opportunities