A.從歷史數(shù)據(jù)進(jìn)行推斷 B.專家主觀意見(jiàn) C.層次分析過(guò)程 D.猜測(cè)
A.活動(dòng)的總時(shí)差(float) B.只有最早開始(early start)與最晚開始時(shí)間(late Start) C.關(guān)鍵路徑(critical path) D.A和C
A.計(jì)劃(Planning) B.啟動(dòng)(Initiating) C.收尾(Closing) D.項(xiàng)目可行性研究(Project feasibility study)