1, high accuracy: a good bet can often accurately predict or cover the test content, which is convenient for candidates to prepare for the exam.

2. Knowledge point synthesis: A good bet can cover all the knowledge points needed for the exam, which is helpful for candidates to systematically study and review the exam content.

3, the difficulty of the topic is appropriate: a good bet will set the corresponding difficulty level according to the difficulty of the exam, so that candidates can better master knowledge and skills.