發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : Urban consolidation center or peer-to-peer platform? The solution to urban last-mile delivery