In the 10th College Students' Safety Knowledge Competition in Jiangsu Province, there are three opportunities by default in the formal examination, and the system takes the one with the best score and the shortest one with the same score. The mock exam is infinite, and the formal exam will have a total number of questions and a countdown. When the paper is finished, click the hand-in button, don't click the hand-in button, and continue counting.

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In order to ensure the uniqueness of a student's identity, the client of the 10th Jiangsu University Students' Safety Knowledge Competition uses three elements: school, student number and password to locate a student. Enter the access address on the PC or open the mobile phone to scan the QR code and visit. Enter the school, student number and password in the "knowledge contest" login interface, and log in for practice, simulation test and formal examination.

RSA asymmetric encryption is used for password encryption, and the data between schools is relatively isolated. The operations involved in addition, deletion and modification are all left behind, and the key operations can be traced back.