常见的软件开发模型有瀑布模型、演化模型、螺旋模型、喷泉模型等。其中（ ）适用于需求明确或很少变更的项目，（请作答此空）主要用来描述面向对象的软件开发过程。
- A.瀑布模型
- B.演化模型
- C.螺旋模型
- D.喷泉模型
正确答案及解析
正确答案
解析
常见的软件开发模型有瀑布模型、演化模型、螺旋模型、喷泉模型等。
瀑布模型适用于需求明确或很少变更的项目，也可用在已有类似项目开发经验的项目上。瀑布模型不灵活，特别是无法解决软件需求不明确问题，由于需求不明确导致的问题有可能在项目后期才能发现，但损失已经造成。
螺旋模型特别适用于庞大而复杂的、高风险的系统。
喷泉模型主要用于描述面向对象的开发过程，体现了面向对象开发过程的迭代和连续性。
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