A new project manager receives a draft of the project charter. What information will help the project manager participate in the completion of this document? 一名新项目经理收到一份项目章程草案，哪些信息将帮助项目经理参与完成这份文件？ ◑A.Business case 商业论证 ◑B.Project schedule 项目进度计划 ◑C.Cost baseline 成本基准 ◑D.Project management information system (PMIS)项目管理系统（PMIS）
