起重机械主要由驱动装置、工作机构、______三大部分组成。

The following statements describe the project management office (PMO) EXCEPT ______ .

A．PMO focuses on the coordinated planning and execution of projects and subprojects that are tied to the parent organizaiton's or clients's overall business objectives

B．PMO can be given the authority to act as a key decision-maker during the initiation stage of each project

C．PMO can be involved in the selection and redeployment of project personnel

D．PMO and project managers pursure the same objectives and are driven by the same requirements