单选

● 出现“关键路径上的活动总时差是零和负数”情况下,下列分析正确的是__(36)__。

(36)

  • ● 出现“关键路径上的活动总时差是零和负数”情况下,下列分析正确的是__(36)__。    (36)A.关键路径上的活动总时差可能为零的原因是每个相邻活动都是紧前或紧后的,需要调整以给活动留出时间余地
  • B.关键路径上的活动总时差可能为负的原因是由于安排调配不得当所造成的活动非合理性交错现象,有必要调整活动持续时间、逻辑关系等使得活动总时差为零
  • C.关键路径上的活动总时差可能为负的原因是因为用最早时间减去最晚时间,不需要调整以给活动留出余地      
  • D.关键路径上的活动总时差可能为零的原因是由于安排活动进度没有余地,需要调整以给活动留出余地
参考答案
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(67)

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