Formal Paper # 3 due : An Abstract (length depends on purpose) and Introduction (no more than two pages) of a formal scientific or technical proposal, report, journal article or short thesis.

• 缴交正式报告之三期限：一篇正式科技提案、报告、期刊、短篇文案的一份纲要（长度依写作目地而定）和引言（不能超过两页）。