Model learning refers to the process of discovering, learning, and applying best practices from others (or each other) to help improve their own performance. Based on the above definitions, Which of the following are model examples:. ['Xiao Wang has always lost when he learned to play poker. Later, he mastered some rules and techniques of playing poker. He often won when playing poker.', 'Zhang San saw that Li Si had a good income in a certain company, and then he also applied to the company to work.', 'With the help of Xiaohong at the same table, Xiaogang has greatly improved his academic performance.', 'A state-owned enterprise learns advanced experience in producing similar products from well-known foreign companies to reduce costs and improve efficiency.']