正确答案: B
多用户分时操作系统
题目:UNIX操作系统属于下列()。
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学习资料的答案和解析:
[单选题]Project work packages are typically decomposed into smaller components called activities to provide a basis for()scheduling, executing, and monitoring and controllingthe proj ect work.
estimating
解析:该题的关键词为"scheduling、executing、monitoring、controlling",其语句结构为''Project work packages(主语)are typically decomposed into(谓语)smaller components",含义为"项目工作包通常被分解为更小的活动",分析后得知空白处的选项应该和上述的关键词为并列的词语,且顺序排列在其他的关键词之前,因而只能选择选项B,因为只有首先进行项目估算,才能制定项目进度,然后才能执行和监控,其他选项不符合题意。