The academic papers, social investigation reports and related materials attached to the "Challenge Cup" extracurricular academic and scientific works competition for college students must be in Chinese. Academic papers should not exceed 8000 words, and social investigation reports should not exceed 15000 words. Works with more than 50% words will be eliminated directly. It is limited to six disciplines: philosophy, economy, society, law, education and management. Attached are the original works of philosophy and social sciences, the copy of the employing unit's use certificate and relevant appraisal materials. Undergraduate students generally submit academic papers and works, and research reports must be based on actual research reports.