Object-oriented analysis （OOA） is a semiformal specification technique for the object-oriented paradigm. Object-oriented analysis consists of three steps. The first step is （71）. It determines how the various results are computed by the product and presents this information in the form of a （72） and associated scenarios. The second is （73） , which determines the classes and their attributes, then determines the interrelationships and interaction among the classes. The last step is （74） , which determines the actions performed by or to each class or subclass and presents this information in the form of （75）.

（73）处填（）。

A．use-case modeling

B．class modeling

C．dynamic modeling

D．behavioral modeling

当国际工程项目承包商和业主产生争议时，协商解决的一般程序为（）

A.工程师对合同双方进行调解，以便争议双方能通过友好协商解决

B.工程师对争议做复审决定通知争议双方

C.争端审议委员会对合同双方进行调解，以便争议双方能通过友好协商解决

D.争端审议委员会对争议做复审决定通知争议双方