1. Language is a system of arbitrary vocal symbols used for human __________ A. contact B. communication C. relation D. community 2. Which of the following words is entirely arbitrary? A. tree B. typewriter C. crash D. bang

Development refers to the ways people grow, adapt, and change during their lifetimes. physical development, personality development, socioemotional development, cognitive development(thinking), and language development

Attributes – Any property of a programming language construct such as The data type of a variable The value of an expression The location of a variable in memory

Generate executable code for a target machine that is a faithful representation of the semantics of the source code Depends not only on the characteristics of the source language but also on detailed information about the target architecture, the structure of the runtime environment, and the operating system running on the target machine

them. A student of music needs as long and as arduous a training to become a performer as a medical student needs to become a doctor. Most training is concerned with technique, for musicians have to have the muscular proficiency of an athlete or a ballet dancer. Singers practice breathing every day, as their vocal chords would be inadequate without controlled muscular support. String players practice moving the fingers of the left hand up and down, while drawing the bow to and fro with the right

Ｃ语言是在 70 年代初问世的。一九七八年由美国电话电报公司(AT&T)贝尔实验室正 式 发 表 了 Ｃ 语 言。 同 时 由 B.W.Kernighan 和 D.M.Ritchit 合 著了 著 名 的 “ THE C PROGRAMMING LANGUAGE”一书。通常简称为《K&R》，也有人称之为《K&R》标准。 但是，在《K&R》中并没有定义一个完整的标准 C 语言，后来由美国国家标准协会（American National Standards Institute）在此基础上制定了一个 C 语言标准，于一九八三年发表。通常 称之为 ANSI C

一、shell 是 一 种 命 令 行 解 释 程 序（Command-Language Interpreter），负责用户和操作系统的沟通。 二、在终端方式的shell 提示窗口如图4.1所示

一、SQL（Structured Query Language） 二、结构化查询语言，是关系数据库的标准语言 三、SQL是一个通用的、功能极强的关系数据库语言

UML（Unified Modeling Language,统一建模语言） 是一种可视化的建模语言，它能够让系统构造者用标准的、易于理 解的方式建立起能够表达他们设计思想的系统蓝图，并且提供一种 机制，以便于不同的人之间有效的共享和交流设计成果

一、专业基础课、必修课 二、计算机组成原理的一个部分 三、软件开发的一个组成部分 四、一种低级语言的程序设计 五、高级语言程序设计的扩展