【单选题】【消耗次数：1】
在软件生命周期中，确定系统必须做什么和必须具备哪些功能的阶段是（）。
①
概要设计
②
详细设计
③
可行性分析
④
需求分析
参考答案：
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【简答题】
通常我们说的系统设计是指软件生命周期中的[填空]和[填空]两个阶段。
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对社会政策法规方案获取政治资源支持的程度及对政治价值的影响的可行性分析，属于（）。A. 行政可行性分析 B. 政治可行性分析C. 法律可行性分析 D. 经济可行性分析
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