發送短信

數:

提供者:

CAPTCHA:

__    __     ___      ______     ___     __   _   
\ \\ / //   / _ \\   /_   _//   / _ \\  | || | || 
 \ \/ //   / //\ \\    | ||    / //\ \\ | '--' || 
  \  //   |  ___  ||  _| ||   |  ___  ||| .--. || 
   \//    |_||  |_|| /__//    |_||  |_|||_|| |_|| 
    `     `-`   `-`  `--`     `-`   `-` `-`  `-`

Please enter what you see:

發送短信 : Cresting the commoditization curve: a regression analysis and bass diffusion model approach