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精品资料(2021-2022年收藏)中农大线上作业Java语言与面向对象程序设计AF.doc
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精品资料(2021-2022年收藏)中农大线上作业Java语言与面向对象程序设计AF.doc
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主蒸汽及高、低温再热蒸汽系统采用单元制系统,均采用“双管、单管、双管”的布置方式。主蒸汽管道和高温再热蒸汽管道分别从过热器和再热器的出口联箱的两侧引出,然后汇成一根母管,到汽轮机前再分成两根支管分别接入高压缸和中压缸左右侧主汽关断阀和再热关断阀。the oil level to the normal oil level. (2) for the secondary prevention of the leakage of cooling water pipe fittings, valve parts before installation to check ... 4.2 measures to eliminate quality defects of cables cable laying in front of the cable construction, design, supervision and construction units to deliver the design, and drawing the third. Combined the engineering field to find fault, adding omitted items. Because the unit used computer DCS control and adds a great deal of control and signal cables. So you should carefully review, checks for missing physical cable, ready for construction and to verify cable length, specifications, familiar with the cable channel and the device location and bracket cable bracket on the section number. At the time of preparation of the inventory of cable, first of all, the professional carefully study electrical schematics, in accordance with the principle of accounting the cable path cable volume, the number of cores used, total volume and design inventory check cable to cable with and without omission, laying of the cable in order to ensure the process does not put a cable one cable. Finally, at the time of inventory, prepared to take the same path the cables together. Inventory preparation is completed, later in each enclosure affixed on both sides of each side of the cable you want to lay accurately verify cable lengths and set aside. Bridge should be combined, correcting errors, avoid straight, no cable bridge scaffolding used in the construction, not allowed to use electricity (fire) cutting, fix cable tray, cable tray is not allowed as a welding ground connection or cable tray cannot be used for other processes
Java 语言与面向对象程序设计
第 A 套
1、计算机程序设计过程实际上就是( )过程,不同的问题求解方法决定了不同的程序设
计方法。
A.用机器计算 B.实际问题的求解
C.程序编写 D.分析问题
参考答案:B 您的答案:B
2、在客观世界中对象包含:( )
A.数据和程序 B.数据和算法
C.状态和行为 D.变量和函数
参考答案:C 您的答案:C
3、面向对象程序设计是以问题中涉及的( )为中心,而非具体的解题过程的研究和实现
为关注点。
A.对象 B.数据 C.过程 D.类
参考答案:A 您的答案:A
主蒸汽及高、低温再热蒸汽系统采用单元制系统,均采用“双管、单管、双管”的布置方式。主蒸汽管道和高温再热蒸汽管道分别从过热器和再热器的出口联箱的两侧引出,然后汇成一根母管,到汽轮机前再分成两根支管分别接入高压缸和中压缸左右侧主汽关断阀和再热关断阀。the oil level to the normal oil level. (2) for the secondary prevention of the leakage of cooling water pipe fittings, valve parts before installation to check ... 4.2 measures to eliminate quality defects of cables cable laying in front of the cable construction, design, supervision and construction units to deliver the design, and drawing the third. Combined the engineering field to find fault, adding omitted items. Because the unit used computer DCS control and adds a great deal of control and signal cables. So you should carefully review, checks for missing physical cable, ready for construction and to verify cable length, specifications, familiar with the cable channel and the device location and bracket cable bracket on the section number. At the time of preparation of the inventory of cable, first of all, the professional carefully study electrical schematics, in accordance with the principle of accounting the cable path cable volume, the number of cores used, total volume and design inventory check cable to cable with and without omission, laying of the cable in order to ensure the process does not put a cable one cable. Finally, at the time of inventory, prepared to take the same path the cables together. Inventory preparation is completed, later in each enclosure affixed on both sides of each side of the cable you want to lay accurately verify cable lengths and set aside. Bridge should be combined, correcting errors, avoid straight, no cable bridge scaffolding used in the construction, not allowed to use electricity (fire) cutting, fix cable tray, cable tray is not allowed as a welding ground connection or cable tray cannot be used for other processes
4、在面向对象程序设计中,所谓的“对象”是现实世界中的实体或概念在计算机逻辑中的
( )。
A.分析理解 B.概括 C.抽象表示 D.封装表示
参考答案:C 您的答案:C
5、在面向对象程序设计中,对象是由( )组成的封装体,与客观实体有直接对应关系,
一个对象类定义了具有相似性质的一组对象。
A.数据和算法 B.计算和变量
C.数据和容许的操作 D.函数和全局变量
参考答案:C 您的答案:A
6、对象由一组“属性”和一组对属性进行“操作”的服务组成,是存在的具体实体,具有
明确定义的状态和行为。因此,一个具体对象被称做( )。
A.实例 B.变量 C.组合体 D.聚合体
参考答案:A 您的答案:A
主蒸汽及高、低温再热蒸汽系统采用单元制系统,均采用“双管、单管、双管”的布置方式。主蒸汽管道和高温再热蒸汽管道分别从过热器和再热器的出口联箱的两侧引出,然后汇成一根母管,到汽轮机前再分成两根支管分别接入高压缸和中压缸左右侧主汽关断阀和再热关断阀。the oil level to the normal oil level. (2) for the secondary prevention of the leakage of cooling water pipe fittings, valve parts before installation to check ... 4.2 measures to eliminate quality defects of cables cable laying in front of the cable construction, design, supervision and construction units to deliver the design, and drawing the third. Combined the engineering field to find fault, adding omitted items. Because the unit used computer DCS control and adds a great deal of control and signal cables. So you should carefully review, checks for missing physical cable, ready for construction and to verify cable length, specifications, familiar with the cable channel and the device location and bracket cable bracket on the section number. At the time of preparation of the inventory of cable, first of all, the professional carefully study electrical schematics, in accordance with the principle of accounting the cable path cable volume, the number of cores used, total volume and design inventory check cable to cable with and without omission, laying of the cable in order to ensure the process does not put a cable one cable. Finally, at the time of inventory, prepared to take the same path the cables together. Inventory preparation is completed, later in each enclosure affixed on both sides of each side of the cable you want to lay accurately verify cable lengths and set aside. Bridge should be combined, correcting errors, avoid straight, no cable bridge scaffolding used in the construction, not allowed to use electricity (fire) cutting, fix cable tray, cable tray is not allowed as a welding ground connection or cable tray cannot be used for other processes
7、在对象中状态又称为属性或( )。
A.全局变量 B.实例变量 C.参数 D.静态数据
参考答案:B 您的答案:C
8、类之间主要存在三种关系,它们是:( )
A.联合、组合和聚合 B.关联比较
C.多重 D.关联、聚合和泛化
参考答案:D 您的答案:A
9、通常消息包含三个方面的内容:
·要执行的方法的名称。
·( )
·方法所需的所有参数
A.发出消息的对象 B.发出的消息码
C.消息发送者 D.对象
参考答案:A 您的答案:A
主蒸汽及高、低温再热蒸汽系统采用单元制系统,均采用“双管、单管、双管”的布置方式。主蒸汽管道和高温再热蒸汽管道分别从过热器和再热器的出口联箱的两侧引出,然后汇成一根母管,到汽轮机前再分成两根支管分别接入高压缸和中压缸左右侧主汽关断阀和再热关断阀。the oil level to the normal oil level. (2) for the secondary prevention of the leakage of cooling water pipe fittings, valve parts before installation to check ... 4.2 measures to eliminate quality defects of cables cable laying in front of the cable construction, design, supervision and construction units to deliver the design, and drawing the third. Combined the engineering field to find fault, adding omitted items. Because the unit used computer DCS control and adds a great deal of control and signal cables. So you should carefully review, checks for missing physical cable, ready for construction and to verify cable length, specifications, familiar with the cable channel and the device location and bracket cable bracket on the section number. At the time of preparation of the inventory of cable, first of all, the professional carefully study electrical schematics, in accordance with the principle of accounting the cable path cable volume, the number of cores used, total volume and design inventory check cable to cable with and without omission, laying of the cable in order to ensure the process does not put a cable one cable. Finally, at the time of inventory, prepared to take the same path the cables together. Inventory preparation is completed, later in each enclosure affixed on both sides of each side of the cable you want to lay accurately verify cable lengths and set aside. Bridge should be combined, correcting errors, avoid straight, no cable bridge scaffolding used in the construction, not allowed to use electricity (fire) cutting, fix cable tray, cable tray is not allowed as a welding ground connection or cable tray cannot be used for other processes
10、在面向对象的程序设计中,封装是指将对象的( )分别用数据结构和方法描述,并将
它们绑定在一起形成一个可供访问的基本逻辑单元。
A.所有局部数据和程序 B.属性和行为
C.特征 D.消息和对象
参考答案:B 您的答案:B
11、通过继承,一个类的定义可以基于另外一个已经存在的( )。
A.类 B.数据和程序 C.程序 D.数据
参考答案:A 您的答案:B
12、面向对象软件开发过程被划分成面向对象分析、面向对象设计和( )三个阶段。
A.Java 编程 B.面向对象实现 C.C++编程 D.文档收集
参考答案:B 您的答案:B
13、面向对象分析的主要目的就是开发人员在有用户参与协作下,明确用户需求,应用标准
主蒸汽及高、低温再热蒸汽系统采用单元制系统,均采用“双管、单管、双管”的布置方式。主蒸汽管道和高温再热蒸汽管道分别从过热器和再热器的出口联箱的两侧引出,然后汇成一根母管,到汽轮机前再分成两根支管分别接入高压缸和中压缸左右侧主汽关断阀和再热关断阀。the oil level to the normal oil level. (2) for the secondary prevention of the leakage of cooling water pipe fittings, valve parts before installation to check ... 4.2 measures to eliminate quality defects of cables cable laying in front of the cable construction, design, supervision and construction units to deliver the design, and drawing the third. Combined the engineering field to find fault, adding omitted items. Because the unit used computer DCS control and adds a great deal of control and signal cables. So you should carefully review, checks for missing physical cable, ready for construction and to verify cable length, specifications, familiar with the cable channel and the device location and bracket cable bracket on the section number. At the time of preparation of the inventory of cable, first of all, the professional carefully study electrical schematics, in accordance with the principle of accounting the cable path cable volume, the number of cores used, total volume and design inventory check cable to cable with and without omission, laying of the cable in order to ensure the process does not put a cable one cable. Finally, at the time of inventory, prepared to take the same path the cables together. Inventory preparation is completed, later in each enclosure affixed on both sides of each side of the cable you want to lay accurately verify cable lengths and set aside. Bridge should be combined, correcting errors, avoid straight, no cable bridge scaffolding used in the construction, not allowed to use electricity (fire) cutting, fix cable tray, cable tray is not allowed as a welding ground connection or cable tray cannot be used for other processes
化的面向对象模型规范地表述需求,最后形成面向对象的( ),即 OOA 模型。
A.数据结构和流程图 B.分析报告
C.需求分析 D.分析模型
参考答案:D 您的答案:D
14、OOA 模型包含 5 各层次:( )静态属性层、服务层、结构层和主题层。
A.对象-类层 B.对象-函数层
C.类-数据层 D.变量-程序
参考答案:A 您的答案:A
15、面向对象的设计就是将 OOA 模型进行扩展,确定如何来实现 OOA 模型所要完成的内容,
并用( )表述出来。
A.系统设计 B.系统详细设计
C.OOA 模型 D.OOD 模型
参考答案:D 您的答案:A
16、所谓的面向对象的实现,就是分析和设计完成后程序的开始编写阶段,即通常所说的
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