發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : Performance evaluation of NTPv4 when SPIK state cannot step frequency