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计算机软件水平考试软件设计笔试考前练习题
The purpose of the requirements definition phase is to produce a clear, complete, consistent, and testable _ (1) _ of the technical requirements for the software product.
During the requirements definition phase, the requirements definition team uses an iterative process to expand a broad statement of the system requirements into a complete and detailed specification of each function..that the software must perform and each _ (2) _ that it must meet. The starting point is usually a set of high level requirements from the _ (3) _ that describe the project or problem.
In either case, the requirement definition team formulates an overall concept for the system and then defines _ (4) _ showing how the system will be operated publishes the system and operations concept document and conducts a system concept review (SCR).
Following the SCR, the team derives _ (5) _ requirements for the system from the high level requirements and the system and operations concept. Using structured or object-oriented analysis. the team specifies the software functions and algorithms needed to satisfy each detailed requirement.
(1)A.function B.definition C.specification D.statement
(2)A.criterion B.standard C.model D.system
(3)A.producer B.customer C.programmer D.analyser
(4)A.rules B.principles C.scenarios D.scenes
(5)A.detailed B.outlined C.total D.complete
参考答案：C A B C A
在分支-限界算法设计策略中，通常采用_(1)_搜索问题的解空间。
(1)A.深度优先 B.广度优先
C.自底向上 D.拓扑序列
●在下列算法设计方法中，_(2)_在求解问题的过程中并不从整体最优上加以考虑，而是做出在当前看来是最好的选择。利用该设计方法可以解决_(3)_问题。
(2)A.分治法 B.贪心法
C.动态规划方法 D.回溯法
(3)A.排序 B.检索
C.背包 D.0/1背包
●以关键字比较为基础的排序算法在最坏情况下的计算时间下界为O(nlogn)。下面的排序算法中，最坏情况下计算时间可以达到O(nlogn)的是_(4)_;该算法采用的设计方法是_(5)_。
(4)A.归并排序 B.插入排序 C.选择排序 D.冒泡排序
(5)A.分治法 B.贪心法 C.动态规划方法 D.回溯法
答案:B B C A A
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