發送短信

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 / ____||  |  ___||  / ____||  /_   _//     ___   
/ //---`'  | ||__   / //---`'   -| ||-     /   || 
\ \\___    | ||__   \ \\___     _| ||_    | [] || 
 \_____||  |_____||  \_____||  /_____//    \__ || 
  `----`   `-----`    `----`   `-----`      -|_|| 
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發送短信 : An exploratory factor analytic approach to understand design features for academic learning environments