After entering the site, first find the corresponding experimental platform, and the invigilator will give you questions. It usually takes three minutes to fill in the paper. If you still have time, you can look at the operation requirements of the test questions. As soon as there is a signal in the exam time, take the questions away and start the operation, but you can only operate according to your own memory and you must complete the operation within the specified time.
Say goodbye to the teacher after the operation, and then you can go.
Remind me to be polite!