1. English: to test the candidates' English language ability, including listening, reading, writing and speaking.
2. Specialized courses: test candidates' professional knowledge, including theoretical knowledge and practical ability.
3. Comprehensive Ability: Examine the candidates' comprehensive ability, including thinking ability, analyzing ability and comprehensive judgment ability.
4. Comprehensive quality: test candidates' comprehensive quality, including self-management ability, teamwork ability, professionalism and so on.