Social adjustment is to determine the behavior of the subject of social life through certain social authority, indicate its role and development direction, and purposefully incorporate it into a certain order. Social adjustment is based on the way it acts on people's behavior, and The reason people obey it can be divided into internal adjustment and external adjustment. Internal adjustment is the process by which people learn the behavior of a certain social group, while the external adjustment is the process of making people comply with certain social norms through external pressure. According to the above definitions, which of the following is internal adjustments? ['Public opinion supervision is also one of the ways to achieve integrity and self-discipline of leading cadres.', 'Under the new round of police cleanup, the social order has improved significantly.', "-year-old Xiao Ming knows that he has to cross the street to cross the zebra crossing with his parents' education.", 'Since the reform and opening up, the country has attached great importance to and rewarded scientific research, and high-level results have emerged endlessly.']