xcb.hbpu.edu.cn

HTTP /1.1 200 OK Date: Fri, 06 Jan 2023 17:57:41 GMT SS: s X-Frame-Options: SAMEORIGIN Upgrade: h2c,h2 Connection: Upgrade Last-Modified: Fri, 06 Jan 2023 07:50:22 GMT Accept-Ranges: bytes Content-Length: 18912 Cache-Control: max-age=600 Expires: Fri, 06 Jan 2023 18:07:41 GMT Vary: Accept-Encoding ETag: