在目前我国的城市中,道路广场用地与绿地的面积分别占城市总建设用地的( )。
A.8%~15% B.15%~25%C.20%~35% D.60%~75%
参考答案:A
植保机械中的液泵用来压送药液,以克服(),提高(),增大()。
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) .
A. use-case modeling B. class modeling C. dynamic modeling D. behavioral modeling