發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : To thank or not to thank: Understanding the differences between gratitude and indebtedness after receiving a favor through emotion appraisals, motivations and behaviors