發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : Physical Delivery Versus Cash Settlement: An Empirical Study on the Feeder Cattle Contract