Quality reports derived from large amounts of data indicate that the current deliverable has many defects. What tool or technique should the project manager use to gain insight for decision making? 在大量数据中获得的质量报告表明，目前的可交付成果存在许多缺陷。项目经理应该使用什么工具或技术来获得制定决策的洞察力？ ◑A.Affinity diagram亲和图 ◑B.Ishikawa diagram石川图 ◑C. Control chart控制图 ◑D. Pareto analysis帕累托分析
