71、（）seeks to perform root cause investigation as to what is leading identified trends.
72、（）provides guidance for the development and improvement of capabilities for introducing new and changed service into supported environment.
73、（ ）is the process of managing procurement relationships , monitoring contract performance, and making changes and corrections as appropriate,and closing out contracts.
C、plan Procurements management
74、The（ ）is a hierarchical decomposition of the total scope of work to be Carried out by the project team to accomplish the project objectives and create the required deliverables.
A、project scope statement
D、project scope plan
75、Risk（ ）acknowledge the existence of a threat，but no proactive action is taken 。