静止性震颤的临床特点中不包括（）

A.震颤的频率为每分4～6次

B.手指的屈曲直伸震颤与拇指的外展内收震颤形似"搓丸样"

C.肌肉松弛时震颤最明显，做随意运动时，该肢体的震颤反而减弱

D.情绪紧张时震颤会恶化，而睡眠中震颤消失

A prerequisite of effective time management is ______.

A) knowing the dictated project completion date
B) having the most advanced software package for project planning, scheduling, and control
C) having a good project WBS which identifies the major project deliverables and tasks, and the person responsible for each of them
D) having a well staffed scheduling department