问题
单项选择题
在软件生命周期中,下列哪个说法是不准确的______。
A.软件生命周期分为计划、开发和运行三个阶段
B.在计划阶段要进行问题定义和需求分析
C.在开发后期要进行编写代码和软件测试
D.在运行阶段主要是进行软件维护
答案
参考答案:B
解析:软件生命周期中的计划阶段分为问题定义和可行性研究两个阶段,而需求分析属于开发初期的任务。
在软件生命周期中,下列哪个说法是不准确的______。
A.软件生命周期分为计划、开发和运行三个阶段
B.在计划阶段要进行问题定义和需求分析
C.在开发后期要进行编写代码和软件测试
D.在运行阶段主要是进行软件维护
参考答案:B
解析:软件生命周期中的计划阶段分为问题定义和可行性研究两个阶段,而需求分析属于开发初期的任务。
根据对话内容,从方框中所给的七个选项中选出五个句子补全对话,使对话完整、通顺。并将所选标号在对话后面的横线上。 Li Yang: Good morning, Mathew. Mathew: Good morning, Li Yang. 小题1: Li Yang: There's still smog(雾霾)today. We'll have to go to school with face masks(口罩). Mathew: 小题2: According to the news, PM2.5 pollution is the main problem with air pollution. Li Yang: Yes, and air pollution has done harm to people's health. Mathew: So the Chinese government and Chinese people must take action to fight it. Ji Yang: 小题3: Mathew: Since PM2.5 is mainly caused by vehicles(机动车)and factories, cars with large emissions(排放)should not be allowed and factories should be closely watched. Li Yang: 小题4: We hope that more and more people will join us in making the blue skies return for good. Mathew: 小题5:
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