关于配置管理计划的制订和审批，下面说法正确的是（）

单项选择题在软件配置管理中，版本控制的目的是按照一定的规则保存配置项的（）

A.重要版本 
B.基线版本 
C.所有版本 
D.需要得版本

单项选择题The most crucial time for project risk assessment is ( ).

A. when a problem surfaces
B. during the planning phase
C. during the close-out phase
D. after the project schedule has been published

单项选择题Stakeholder management refers to managing communications to satisfy needs of, and resolve issues with,project stakeholders. The ( ) is useful responsible for stakeholder management.

A.PMO
B.CIO
C.CCB
D.PM

单项选择题The communication management plan determines the information and communications needs of the stakeholders. In the following statements related to communication management plan. ( ) is false.

A. The communication management plan is contained in or is a subsidiary plan of, the project management plan.
B. The  communication  management  plan  can  be  formal  or informal, highly detailed or broadly framed, and based on the needs of the project.
C. The  communication  manamgement  plan  organize  and summarize the information gathered,and present the results of any analysis as comparedthe performance measurement baseline.
D. The communication management plan can include guidelines project status meetings,project team meetings,e-meetines,and e-mail

单项选择题A data warehouse is a subject-oriented data set used for reporting and analusis. Data warehouses can be subdivided into ( ). Which store subsets of data from a warehouse.

A. OLTPs
B. transactions
C. data sarts
D. OLAPs