http://www.raking.cn/%e6%99%ba%e8%83%bd%e8%ae%be%e5%a4%87%e4%b8%8e%e7%a7%bb%e5%8a%a8%e7%ab%af%e7%bb%91%e5%ae%9a%e6%b5%81%e7%a8%8b%e4%ba%a4%e4%ba%92%e6%8e%a2%e7%a9%b6-research-on-the-interaction-between-intelligent-device/ hourly 1 https://wordpress.org/?v=4.3.34