试题1

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试题2

由权值为9，2，5，7的四个叶子构造一棵哈夫曼树，该树的带权路径长度为（ ） 。
A、23
B、37
C、44
D、46

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试题3

最主要的软件质量度量指标有正确性、可维护性、完整性和可用性，下面关于这些质量指标的描述中正确的是（ ）。
A、软件维护的工作量比开发阶段的工作量小  
B、正确性用每千行代码的故障(fault)数来度量  
C、软件完整性是指软件功能与需求符合的程度  
D、可用性与用户的操作效率和用户对软件的主观评价有关

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试题4

设某程序中定义了全局整型变量x和r，且函数f()的定义如下所示，则在语句“x = r*r +1 ;”中 （ ） 。
int f(int r)
{  int x;
x = r*r +1 ;
return x;
}
A、x和r均是全局变量
B、x是全局变量、r是形式参数
C、x是局部变量、r是形式参数
D、x是局部变量、r是全局变量

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试题5

对于如下的程序流程，当采用语句覆盖法设计测试案例时，至少需要设计（ ）个测试案例。
 
A、1  
B、2  
C、3  
D、4

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试题6

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试题7

there is nothing in this world constant but inconstancy.-SWIFT
Project after project designs a set of algorithms and then plunges intoconstruction of customer-deliverable software on a schedule that demands delivery of the first thing built.
In most projects, the first system built is (1) usable. It may be too slow, too big , awkward to use, or all three. There is no (2 ) but to start again, smarting but smarter and build a redesigned version in which these problems are solved. The discard and (3) may be done in one lump, or it may be done piece-by-piece. But all large-system experience shows that it will be done. Where a new system concept or new technology is used, one has to build a syste m to throw away, for even the best
planning is not so omniscient (全知的) as to get it fight the first time.
the management question, therefore, is not whether to build a pilot system and throw it away. You will do that. The only question is whether to plan in advance to build a (4).or to promise to deliver the throwaway to customers. Seen this way, the answer is much clearer. Delivering that throwaway to customers buys time, but it does so only at the (5) of agony (极大痛苦) for the user, distraction for the builders while they do the redesign, and a bad..reputation for the product that the best redesign will find hard to live down.
Henceplanto throw one away; you will,anyhow.
The management question, therefore, is not whether to build a pilot system and throw it away. You will do that. The only question is whether to plan in advance to build a throwaway, or to promise to deliver the throwaway to customers. Seen this way, the answer is much clearer. Delivering that throwaway to customers buys time, but it does so only at the cost of agony for the user, distraction for the builders while they do the redesign, and a bad reputation for the product that the best redesign will find hard to live down.
(1)A.almost
B.often
C.usually
D.barely
(2)A.alternative
B.need
C.possibility
D.solution
(3)A.design
B.redesign
C.plan
D.build
(4) A.throwaway
B.system
C.software
D.product
(5) A.worth
B. value
C. cost
D. invaluable

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试题8

在面向对象技术中，类属是一种（1）机制。一个类　属类是关于一组类的一个特性抽象，它强调的是这些类的成员特征中与（2）的那些部分，而用变元来表示与（3）的那些部分。
（1）A、包含多态 
B、参数多态 
C、过载多态 
D、强制多态
（2）A、具体对象无关 
B、具体类型无关 
C、具体对象相关 
D、具体类型相关
（3）A、具体对象无关 
B、具体类型无关 
C、具体对象相关 
D、具体类型相关 

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试题9

Cache的地址映像方式中，发生块冲突次数最小的是( )
A.全相联映像
B.组相联映像
C.直接映像
D.无法确定的

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试题10

（）不是单元测试主要检查的内容。
A．模块接口
B．局部数据结构
C．全局数据结构
D．重要的执行路径

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