發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : The relationship between airport performance and privatisation policy: A nonparametric metafrontier approach