The responsibility assignment matrix(RAM) ______ .

A．is used for development of the project budget

B．is developed at the activity level and used to closely link project roles and responsibilities to project network activities

C．is used to show the connections between work that needs to be done and project team member It can show responsibilities at various levels of detail

D．is used to identify accountabilities in individual performance appraisals

全国人民代表大会会议公开举行；在必要的时候，经 * * 团和( )会议决定，可以举行秘密会议。

A．1/5以上的全国人大代表

B．三个以上代表团

C．各代表团

D．各代表团团长