tmp

https://www.liaoxuefeng.com/wiki/0014316089557264a6b348958f449949df42a6d3a2e542c000/0014316090478912dab2a3a9e8f4ed49d28854b292f85bb000

http://ubuntugnome.org/download/

https://linux.cn/portal.php?mod=view&aid=3025

https://www.zhihu.com/question/34611974

http://www.linuxidc.com/Linux/2016-04/130520.htm

 

 

https://en.gravatar.com/emails/

https://www.shanbay.com/

 

 

 

\[ \lim\limits_{x \to \infty} (1 + \frac{1}{x}) ^ x \]