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| |  | ||   / _ \\    ____      / _ \\  |  __ \\  
| |/\| ||  | / \ ||  |    \\   | / \ || | |  \ || 
|  /\  ||  | \_/ ||  | [] ||   | \_/ || | |__/ || 
|_// \_||   \___//   |  __//    \___//  |_____//  
`-`   `-`   `---`    |_|`-`     `---`    -----`   
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發送短信 : Proposed interactivity model for e-learning : results from an expert validation based on a synthesis of the literature