Cultural shock: refers to the process of accepting assimilation in a dominant ethnic group or individual in a dominant culture. Due to the huge difference between the new culture and the mother culture, people face the pressure of making major adjustments and adaptations, which is prone to confusion, tension and anxiety, Overly sensitive, emotionally unstable, negative experiences such as "homesickness", and often accompanied by psychosomatic disorders. Which of the following are a cultural shock (). ['The company sent Xiao Zhang to study abroad for one year. When he returned to China, when he encountered setbacks in his life and work, he remembered the benefits and convenience of foreign countries. He had negative emotions in his heart and became depressed and depressed.', 'A scholar finds that most female Turkish immigrants have tension. The reasons are in addition to illness, occupation, and crowded residence. They have separated from their long-term husband and wife, cultural level and religious beliefs, values, lifestyles conflict with the local cultural life environment, language. Obstacles and other factors.', 'In the past few years, a white American had shot and killed several ethnic minorities in Pittsburgh. He is known as an attorney in an immigration office, handling immigration matters for many foreigners on the one hand, and extremely fearing and hating these foreigners people.', "Xiao Zhao resolutely chose to go to the northwest border to teach after disregarding his family's obstacles after graduating. Due to the unsuitability of the environment, a severe altitude sickness soon appeared and he regretted his choice."]