1. The voluntary reporting system for college entrance examination in various provinces and cities (including the system for soliciting voluntary reporting) was opened at 8:30-20:00 on June 15- 19, and the involuntary reporting time was closed. The specific opening hours can be found in the official website of Suqian Education Examinations Institute, and written in the notice of volunteering in each batch.

2. The starting and ending time of the open voluntary declaration system is when the number of tourists is relatively large. Because of system overload, the browser crashed and could not be opened.