The free resources on this site can be downloaded without registration. To download more resources, click on the registration above. If necessary, you can call (0) 15892607329 for consultation.
In order to prevent your password from being stolen, please log in to the "Enter User Center" to change your password in a timely manner.
The data members of this site can only be used for personal education, teaching and study research, otherwise the user name will be closed.
"A, B, C users" on this site is limited to one person. The system does not support multiple computers to log in at the same time, but supports "D, E users" multiple people online at the same time.
A necessary condition for successful login to this site is that the computer date is correct.
When you cannot access this site with the domain name www.czsx.com.cn, you can try to access this site with ip. The telecommunications IP of this site is 18.104.22.168, and the IP of China Unicom is 22.214.171.124; if you ca n’t access only certain websites, please right-click and left-click the local connection, repair, or restart the router, cat light, or Baidu searches for other solutions to this problem.