It's best not to eat too much water and irritating food before the exam, in case people have three urgent needs to go to the toilet during the exam.
Examination is a strict knowledge level appraisal method. Students' learning ability and knowledge reserve can be checked through exams. In order to ensure the fairness and justice of the results, the examination room must be disciplined and specially equipped with examiners and invigilators to supervise the examination process. Any cheating is absolutely forbidden, or you will bear legal and criminal responsibilities.
Examination is to let a group of people with different educational resources complete the same answer sheet in a certain period of time. However, the significance of the exam is not limited to this. In fact, exams are opportunities for people in different social positions to change themselves.