The national board of health and health, together with the directorate-general for the supervision of national markets, issued today (27 days) 50 national standards for food safety and 9 amendments to the standards, which focus mainly on people's concerns and industrial development needs, interface between the standards and coordinate the management of food safety risks。The new release standards include: 2 food labelling standards, 3 speci

Building knowledge systems requires a framework, depth, linkages and continuous updating。A lot of friends would like to go into the architecture of knowledge to satisfy you. This article will focus on building knowledge systems and hopefully help build them。I've met a lot of hardworking and learning people who like to read, read articles, watch videos and communicate with their masters. However, only a small number of them became co

I. What are knowledge systemsKnowledge systems need to be built on the learning of languages and scripts, and the systematic learning approach is our traditional teaching model, and random learning is our own learning model。However, the knowledge of ordinary people is fragmented, and the knowledge of fragmentation is often made up of a relativistic view, a totally contradictory rationale, vague notions and undefined concepts。Knowled