Can I use SMS verification code every exam?

I can't. The short message verification code is mainly used to verify the identity of candidates and ensure the fairness of the exam. During the exam, candidates will receive a short message containing a verification code. Candidates need to enter the verification code in the SMS into the examination system for identity verification. Every time they take an exam, the system will generate a new verification code to ensure that each exam is independent. Therefore, the verification code received by candidates in this exam cannot be used in the next exam, and they need to get a new verification code every time.