A () is a collection of projects and other work that are grouped together to facilitate effect -ive management of thatwork to meet strategic business objectives.

A、program

B、portfolio

C、project of large size

D、PMO

刑事责任只能由( )追究。

A．国家司法机关
B．劳动行政部门
C．公安行政部门
D．工商行政部门