Welcome to this quiz. As we all know, sleep is an indispensable physiological activity for human beings. About one-third of human life is spent in sleep. Sleep is an important part of the body's recovery, integration and memory consolidation, and it is the guarantee for maintaining human health. According to the World Health Organization survey, 27% of people have sleep problems, and I am one of them, and I find this phenomenon is common among college students around me. This survey report is something I have always wanted to do. I want to know the sleep time of our college students, and also complete a data analysis homework. This survey is anonymous, please feel free to answer the questions, each of your answers will be of great help to me. Thank you for your participation!
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