题目内容

气的失常病机包括哪些内容

查看答案

搜索结果不匹配？点我反馈

更多问题

案例分析题数据模型的三要素指（）；其中（）是对数据系统的静态特性的描述，（）是对数据库系统的动态特性的描述。（）是对数据库系统的动态特性的描述。

A. 数据值
B. 数据类型
C. 数据结构
D. 数据操作

案例分析题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 （） . It determines how the various results are computed by the product and presents this information in the form of a （） . and associated scenarios. The second is （） , which determines the classes and their attributes; Then determine the interrelationships and interaction among the classes. The last step is （） , which determines the actions performed by or to each class or subclass and presents this information in the form of （） . The second is （） , which determines the classes and their attributes.

A. use-case modeling
B. class modeling
C. dynamic modeling
D. behavioral modeling

案例分析题As mentioned above, C imposes relatively few built - in ways of doing things on the program- mer. Some common tasks, such as manipulating （1） , （2）, and doing （3） (I/O), are performed by calling on library functions. Other tasks which you might want to do, such as creating or listing directories, or interacting with a mouse, or displaying windows or other （4） elements, or doing color graphics, are not defined by the C language at all. You can do these things from a C program, of course, but you will be calling on services which are peculiar to your programming environment （5）, processor, and operating system) and which are not defined by the C standard. Since this course is about portable C programming, it will also be steering clear of facilities not provided in all C environments. （5）处应选择（）

A. gatherer
B. translator
C. generator
D. compiler

计算∫tanxdx．