Questionnaire survey. Questionnaire survey refers to a method of collecting information by formulating a detailed questionnaire and asking the respondents to answer accordingly. Therefore, filling in the questionnaire indoors and part-time risk assessment refers to filling in the questionnaire survey indoors. The so-called questionnaire is a group of research and Objective-related questions, or a form of questions compiled for conducting a survey, also known as a questionnaire. It is a common tool used by people to collect data in social survey research activities.
Forced liquidation refers to the behavior of forced liquidation in futures trading to prevent further risk expansion because the margin is insufficient wit