發送短信

數:

提供者:

CAPTCHA:

  _____     ______    ______     ___      ______  
 |__  //   /_   _//  /_   _//   / _ \\   /_   _// 
   / //     -| ||-     | ||    / //\ \\  `-| |,-  
  / //__    _| ||_    _| ||   |  ___  ||   | ||   
 /_____||  /_____//  /__//    |_||  |_||   |_||   
 `-----`   `-----`   `--`     `-`   `-`    `-`'

Please enter what you see:

發送短信 : Stochastic orderings by nonlinear expectations