發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : Wi-Crowd: Sensing and visualizing crowd on campus using Wi-Fi access point data