单项选择题
Which function is NOT served by building a prototype
A.It takes the place of the final syste
B.It assists in gathering software requirements
C.It assists in estimating the cost of the projec
D.It is used as the foundation of the larger project
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单项选择题
设p,q为两个命题,对于“p→q”的逻辑涵义,下面的叙述正确的是 Ⅰ.如果p,贝,则q Ⅱ.p仅当q Ⅲ.p当q Ⅳ.q是p的充分条件
A.Ⅰ和Ⅱ
B.Ⅱ和Ⅳ
C.Ⅱ和Ⅳ
D.Ⅰ和Ⅲ
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单项选择题
结构化分析(SA)方法将欲开发的软件系统分解为若干基本加工,并对加工进行说明,下述 Ⅰ.结构化语言 Ⅱ.判定树 Ⅲ.判定表 是常用的说明工具,其便于对加工出现的组合条件的说明工具是
A.Ⅱ和Ⅲ
B.Ⅰ、 Ⅱ和Ⅲ
C.Ⅰ和Ⅲ
D.Ⅰ和Ⅱ
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