Corporate strategic alliances are two or more economic entities (generally refers to enterprises. This definition also applies if certain departments of an enterprise reach an alliance relationship. Long-term joint and cooperation agreement. According to the above definitions, Which of the following belong to the strategic alliance of the enterprise:. ['Someone authorizes a factory to use it for a long time, and the profit is distributed according to the agreement.', 'A car parts company signs a contract with a car manufacturer to provide the factory with high-quality parts at preferential prices for a long time.', "In order to reserve talents, a company has reached an agreement with the computer department of a famous university, and graduates of the department can participate in the company's recruitment interview.", 'In order to meet the challenges of foreign collection manufacturers, three domestic mobile phone manufacturers reached a 10-year cooperation agreement to jointly develop high-end mobile phones.']