从下列叙述中选出符合程序设计风格指导原则的叙述()。
A.嵌套的重数应加以限制
B.尽量少使用全局变量
C.使用有意义的变量名
D.把常见的局部优化工作留给编译程序去做
A.嵌套的重数应加以限制
B.尽量少使用全局变量
C.使用有意义的变量名
D.把常见的局部优化工作留给编译程序去做
从下述关于模块化程序的叙述中,选出5条正确的叙述。()
A.使程序设计更为方便,但比较难维护。
B.便于由多人分工编制大型程序。
C.便于软件功能扩充。
D.在内存能够容纳的前提下,应使模块尽可能大,以减少模块的个数。
E.模块之间的接口叫数据文件。
A.使用顺序、选择和重复(循环)3种基本控制结构表示程序的控制逻辑
B.模块只有一个入口,可以有多个出口
C.注重提高程序的执行效率
D.不使用GOTO语句
A.使用顺序、选择和循环3种基本控制结构表示程序的控制逻辑
B.模块只有一个入口,可以有多个出口
C.注重提高程序的执行效率
D.不使用GOTO语句
从下列英语叙述中,选出5条正确的叙述。
1.When the electricity is switched off, the ROM is cleared ofits contents, the RAM is not.
2.IF-THEN-ELSE structures in a programming language provide selection.
3.A program in its original form is known as an object program, and the translated version is known as a source program.
4.The CPU is the most important piece of hardware in the entire system and yet one of the simplest.
5.The lowercase letters come after the uppercase letters in the ASCII table.
6.Queue insertions and deletions are made at the same end ofthe queue.
7.Improvements in software quality are necessary to reduce program maintenance costs.
8.A recursive procedure is one that activates itself during its activations.
9.A floppy diskette machine is an example of a direct access storage device.
10.Comments specify actions for a computer to perform when a program is run.
从下列英语叙述中,选出5条正确的叙述,把编号依次写在下面。
(1) The language translator converts the symbolic program into source program.
(2) The coded program written by a programmer is called an object program.
(3) COBOL is self-documenting unlike many technical language.
(4) FORTRAN has high capabilities for performing input/output operations and in handling nonnumeric data.
(5) Loading is a process through which the information on the diskettes or tapes is read by the input unit and stored in the proper memory location.
(6) The assemble program executes source codes directly by determining the meaning of each statement as it is encounted.
(7) Magnetic tape uses cylinders for finding data.
(8) Hexadecimal is used as a shorthand for the internal codes.
(9) Another name of diskette is floppy disk.
(10) An IF-THEN-ELSE selection technique can never be part of a loop.
(11) The most popular language for scientific computing is FORTRAN.
(12) It is much easier to access data in a file than in a database.
二、定义判断。下列各题先提供一个概念定义,然后给出一组典型例证,请你从中选出符合题意的一项。
第 41 题 亚健康是对生物有机体生理机能状态的一种描述,一般指生理机能处于健康与疾病之间的状态。由健康过渡到疾病需要一个从量变到质变的过程,而在质变发生之前的这个特殊阶段即是亚健康。下列现象中属于亚健康的一项是()。
A.同情残疾人的处境
B.避免当面谈论残疾问题
C.为残疾人提供建议
D.设身处地理解残疾人感受