PMP考试

根据网考网考试中心的统计分析，以下试题在2019/2/20日PMP考试习题练习中，答错率较高，为：71%
【单选题】The purpose of a dummy activity in an activity-on-arrow diagram is to:
A Identify a task that could be replaced by another.
B Take the slack time into account.
C Show a task that is not necessarily needed.
D Denote a milestone.
E Show a dependency relationship.

网考网参考答案：E，答错率：71%
网考网试题解析：
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