正确答案: C

project planning

题目：On some projects, especially ones of smaller scope, activity sequencing, activity resource estimating, activity duration estimating, and （） are so tightly linked that they are viewed as a single process that can be performed by a person over a relatively short period of time.

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学习资料的答案和解析：

[单选题]（）在他的经典性的饭店研究中，表明了地位的重要性。