One of the ways of cultural innovation is to face the world and learn from others. The process of cultural exchange, reference and integration is also a process in which different national cultures learn from each other and learn from each other. It is a process of learning and absorbing the outstanding cultural achievements of all ethnic groups in order to develop their own national culture; It is a process of introducing a new culture with various cultural characteristics on the basis of cultural exchange and cultural reference. 1, 2, 3, and 4 statements are correct and meet the meaning of the question, so choose item D.