项目生命周期
参考答案:
是指一个项目从开始到项目结束的过程被划分成一系列阶段的完整周期。从抽象的角度出发项目都必须经历一个由诞生到结束的发展过程,即每个项目都有自己的生命周期。
— I haven’t finished my task yet.
— You shouldn’t have watched the film last night, or you _______ it by now.
A, need have finished B. may have finished
C. should have finished D. will have finished
下列不是Dupuit公式适用条件的是()。
A.含水层为均质和各项同性
B.水井出水量随时间变化
C.水流为层流
D.流动条件为稳定流或非稳定流