2. 计算机
  3. After acceptance and formal transfer of information systems to customers，it has entered the stage of( )．

After acceptance and formal transfer of information systems to customers，it has entered the stage of( )．

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问题 After acceptance and formal transfer of information systems to customers，it has entered the stage of(    )．
选项 A、preparation
B、operation and maintenance
C、development
D、extinction
答案B
解析 本题考察运维的基本定义知识。
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信息系统项目管理师上午综合知识考试

软考高级

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