问题
单项选择题
软件生命周期一般可以分为两个阶段，它们分别是
A．分析和设计
B．编码和测试
C．开发和运行
D．规划和设计
答案
参考答案：C
解析：解析：软件生命周期一般可归纳为两个阶段三个时期，分别是开发阶段 (计划期和开发期)和运行阶段(运行期)。
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软件生命周期一般可以分为两个阶段，它们分别是
A．分析和设计
B．编码和测试
C．开发和运行
D．规划和设计
参考答案：C
解析：解析：软件生命周期一般可归纳为两个阶段三个时期，分别是开发阶段 (计划期和开发期)和运行阶段(运行期)。
Today, I want to write something about my mother. When I had something difficult to do, I often asked my mother for 1 . But she always said, “Do it yourself, dear.” I was not happy about this at all. I thought she was the 2 mother in the world. For example, one day, I decided to 3 some friends to my home. My bedroom was not in order(整齐的). Books were 4 , and I didn’t make the bed. I asked my mother to help me clean it, 5 she still said, “Do it yourself, girl.” Because of my “lazy mother”, I had to 6 my clothes and clean my room. I have to help my parents do 7 . I even had to go to the dentist by myself. It was really hard for me to do everything well, but I have 8 a lot. As time goes by, I understand my mother. She made me clever and diligent (勤奋的) . 9 a great mother! A 10 mother is worth（等值于）one hundred teachers! Don’t you think so?
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