Later, after development, mainly the continuous transformation of universities in Britain, Germany and the United States, three functions of higher education were formed: cultivating specialized talents; Scientific research; Serve the society. Ordinary institutions of higher learning refer to full-time universities, independent colleges, junior colleges and vocational and technical colleges. , refers to the setting standards and approval procedures stipulated by the state, through the national unified entrance examination for ordinary colleges and universities, to recruit high school graduates as the main training object, the implementation of higher education schools.