数据库系统的三级模式中，（）定义的是存储记录的类型、存储域的表示以及存储记录的物理顺序，指引元、索引和存储路径等数据的存储组织。
A.外模式
B.模式
C.视图
D.内模式

编译和解释是实现高级语言翻译的两种基本方式，相对应的程序分别称为编译器和解释器。与编译器相比，解释器（）。编译器对高级语言源程序的处理过程可以划分为词法分析、语法分析、语义分析、中间代码生成、代码优化、目标代码生成等几个阶段:其中，代码优化和（请作答此空）并不是每种编译器都必需的。词法分析的作用是识别源程序中的（）。
A.语法分析
B.语义分析
C.中间代码生成
D.标代码生成

以下不属于安全测试方法的是（）
A.安全功能验证
B.安全漏洞扫描
C.大数据量测试
D.数据侦听

A.team is（ ）just a group of people who happen to work together.Teamwork takes practice and it involves special skills.Teams require common processes;they need agreed-upon goals;and they need effective guidance and leadership.The methods for guiding and leading such teams are well known,but they are not obvious.
A.multiple objectives
B.different objectives
C.a single objective
D.independent objectives

The beauty of software is in its function, in its internal structure, and in the way in which it is created by a team. To a user, a program with just the right features presented through an intuitive and( 71 )interface is beautiful. To a software designer, an internal structure that is partitioned in a simple and intuitive manner, and that minimizes internal coupling is beautiful. To developers and managers, a motivated team of developers making significant progress every week, and producing defect-free code, is beautiful. There is beauty on all these levels.
Our world needs software--lots of software. Fifty years ago software was something that ran in a few big and expensive machines. Thirty years ago it was something that ran in most companies and industrial settings. Now there is software running in our cell phones, watches, appliances, automobiles, toys, and tools. And need for new and better software never( 作答此空 ). As our civilization grows and expands, as developing nations build their infrastructures, as developed nations strive to achieve ever greater efficiencies, the need for more and more Software( 73 )to increase. It would be a great shame if, in all that software，there was no beauty.
We know that software can be ugly. We know that it can be hard to use, unreliable, and carelessly structured. We know that there are software systems whose tangled and careless internal structures make them expensive and difficult to change. We know that there are software systems that present their features through an awkward and cumbersome interface. We know that there are software systems that crash and misbehave. These are( 74) systems. Unfortunately, as a profession, software developers tend to create more ugly systems than beautiful ones.
There is a secret that the best software developers know. Beauty is cheaper than ugliness. Beauty is faster than ugliness. A beautiful software system can be built and maintained in less time, and for less money, than an ugly one. Novice software developers don't understand this. They think that they have to do everything fast and quick. They think that beauty is( 75 ). No! By doing things fast and quick, they make messes that make the software stiff, and hard to understand, Beautiful systems are flexible and easy to understand. Building them and maintaining them is a joy. It is ugliness that is impractical. Ugliness will slow you down and make your software expensive and brittle. Beautiful systems cost the least build and maintain, and are delivered soonest.
A.happens
B.exists
C.stops
D.starts

安全防护策略是软件系统对抗攻击的主要手段，安全防护策略不包括（）。
A.安全日志
B.入侵检测
C.漏洞扫描
D.数据备份与恢复