發送短信 : Audit Market Concentration and Audit Quality

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