The big assignment of the situation and policy of the National Open University usually refers to the submission of the final exam or course paper, and the attachment upload usually refers to the attachment of the paper or assignment to email. Therefore, the assignment of China Development Situation and Policy cannot be uploaded as an attachment, that is to say, when submitting the final exam or course paper, it cannot be submitted as an email attachment. Students should submit according to the channels and formats stipulated by the school.