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 determine 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) .

71（）

A．use-case modeling

B．class modeling

C．dynamic modeling

D．behavioral modeling

腱鞘囊肿的查体所见不包括（）

A.有可活动的物体，有时轻度压痛

B.以笔式电筒光照射肿物时不透光

C.腕伸展范围减小

D.腕背侧痛

E.指甲板变形