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 _    _    _    _     _____    _    _     _  _   
| |  | || | || | ||  |__  //  | || | ||  | \| || 
| |/\| || | || | ||    / //   | || | ||  |  ' || 
|  /\  || | \\_/ ||   / //__  | \\_/ ||  | .  || 
|_// \_||  \____//   /_____||  \____//   |_|\_|| 
`-`   `-`   `---`    `-----`    `---`    `-` -`

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發送短信 : Space of continuous maps and kn-networks