Arrangements for the execution of projects are identified and adopted on a project-by-project basis depending on who is best placed to deliver the most cost-effective substantive, managerial and administrative support services.
17．关于执行项目的安排要逐个项目确定和通过，其依据是谁最能够提供最具成本效益的实质性、管理性和行政性支助服务。