發送短信

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

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發送短信 : Testing for Functional Form and Heteroscedasticity