Tall man. The China-US Young Maker Competition, or CUYMC for short, started on 20 14 and was formally established on 20 15. It is a Sino-American youth exchange competition sponsored by the Ministry of Education and undertaken by the Education Service Center of the Ministry of Education, Tsinghua University and Intel. High gold content. Gold content, the content (mass) of metal "gold" originally used in gold jewelry and gold products, is expressed by K, and the gold content per k (abbreviation of English carat and German carat, often written as "K") is 4. 166%. It is often used to describe the intrinsic quality of things.