How much is the book of Xi 'an Northern Suburb Vocational Qualification Examination?

The vocational qualification certificate system is an important part of the employment system and a special form of the national examination system.

Vocational qualification certificate is the proof that workers have the necessary knowledge and skills to engage in a certain occupation. It is the qualification certificate for workers to apply for jobs, take up posts and start businesses, the main basis for employers to recruit workers, and the effective certificate for overseas employment and foreign labor cooperation personnel to notarize their skill level.