[单选]

PDM includes four types of dependencies or precedence relationships:（）.The completion ofthe successor activity depends upon the initiation of the predecessor activity.

（） from one phase are usually reviewed for completeness and accuracy and approved before work starts on the next phase. Process。 Milestone。 Work。 Deliverables。 （）involves comparing actual or planned project practices to those of other projects to generate ideas for improvement and to provide a basis by which to measure performance.These other projects can be within the performing organization or outside of it,and can be within the same or in another application area. Metrics。 Measurement。 Benchmarking。 Baseline。 根据修订后的我国《海洋环境保护法》，以及加入的国际公约的要求，在总结防治船舶及其有关作业活动污染海洋环境的实践经验基础上，对原有的《中华人民共和国防止船舶污染海域管理条例》进行全面修改，制定新的《中华人民共和国防止船舶污染海洋管理条例》，已于（）起执行。 2010年1月1日。 2010年3月1日。 2012年1月1日。 2012年3月1日。 The（）describes, in detail, the project＇s deliverables and the work required to create those deliverables. The（）provides the project manager with the authority to apply organizational resources to project activities. project management plan。 contract。 project human resource plan。 projectcharter。

PDM includes four types of dependencies or precedence relationships:（）.The completion ofthe successor activity depends upon the initiation of the predecessor activity.