以下关于可靠性测试意义的叙述中，不正确的是（ ）。
- A.软件失效可能导致灾难性后果
- B.软件失效在整个计算机系统失效中占比较少
- C.相比硬件可靠性技术，软件可靠性技术不成熟
- D.随着计算机应用系统中软件成分的增加，软件可靠性问题越来越重要
正确答案及解析
正确答案
解析
软件失效可能造成灾难的后果；软件的失效在整个计算机系统失效中的比例比较高；相比硬件可靠性技术，软件可靠性技术很不成熟；与硬件元器件成本急剧下降形成鲜明对比的是，软件费用呈有增无减的势头，而软件可靠性问题是造成这种费用增长的主要原因之一；随着计算机应用中软件成分的不断增加，使得系统对于软件的依赖性越来越强，软件对生成活动和社会生活的影响越来越大，从而增加了软件可靠性问题在软件工程领域乃至整个计算机工程领域的重要性。以上这些都体现了软件可靠性测试的重要性。
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