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) .

（74）处填（）。

A．use-case modeling

B．class modeling

C．dynamic modeling

D．behavioral modeling

通过网络搜索旅游目的地是目前确定旅游去向的重要方式。下表是某搜索网以海南、云南、四川、山东四个省为旅游目的地的搜索人数（万人）。完成下列各题。

四省旅游目的地逐月搜索人数表（万人）

A．云南、海南、四川、山东

B．海南、云南、四川、山东

C．四川、海南、山东、云南

D．山东、四川、海南、云南小题2:从表中信息看出，影响旅游区某时段成为旅游目的地的最重要因素是

A．旅游者的搜索水平

B．旅游者的休假时间

C．旅游区的接待能力

D．旅游区的气候条件