【单选题】Estimate activity durations is the processof estimating the number of work periods to complete indivities with estimatedresources . the tools and technques is not including().
【单选题】按要求回答下列各题: The appeal of the world of work is first its freedom.The child is compelled to go to school:he is ___21___ of authority.As he grows up,he sees ___22___ it is to befree of school and to be a...