The Challenge Cup must provide supporting materials. You are not allowed to participate in the competition without proof materials. The supporting materials of the Challenge Cup are the contracts, patents, agreements, award certificates and other materials in your project.
Proof materials refer to relevant materials that can strengthen evidence by proving the reliability of other evidence and collection sources. Supported material styles: Title-No.2 is in italics, and the title is in the middle layer, with symbols: 1 and No.3 in bold; Second-level title-symbol: (1), small three in bold; Third-level title-symbol: 1, bold No.4, basic text format, No.4, fixed line spacing of 25 points, upper margin of 2.6 cm, lower margin of 2.4 cm, and left and right margins of 2.8 cm. Both ends are aligned, and the first line of the paragraph is indented by 2 characters.