Analysis of test questions: Think twice before you act means that being responsible for your own behavior is a process of self-cognition, self-acceptance, self-adjustment, self-guidance and self-adjustment. This period includes three processes, namely, foresight and choice before behavior, self-discipline and self-control in behavior, and introspection and responsibility after behavior. It is a kind of behavioral self-discipline and self-control to exclude a, c and d and constantly check your behavior, so choose B.

Comments: Examining the knowledge and understanding of thinking before acting helps students to understand what is thinking before acting, which is generally difficult.