某软件公司欲开发一个图像处理系统，在项目初期开发人员对需求并不确定的情况下，采用（）方法比较合适。

单项选择题Many of the activities performed during the preliminary investigation are still being conducted in（1）,but in much greater depth than before. During this phase, the analyst must become fully aware of the（2）and must develop enough knowledge about the（3）and the existing systems to enable an effective solution to be proposed and implemented. Besides the（4）for process and data of current system, the deliverable from this phase also includes the（5）for the proposed system.

A. hardware and software specification
B. system performance specification
C. formal requirements definition
D. general problem statement

单项选择题Many of the activities performed during the preliminary investigation are still being conducted in（1）,but in much greater depth than before. During this phase, the analyst must become fully aware of the（2）and must develop enough knowledge about the（3）and the existing systems to enable an effective solution to be proposed and implemented. Besides the（4）for process and data of current system, the deliverable from this phase also includes the（5）for the proposed system.

A.logical models 
B.physical models 
C.design models 
D.implementation models

单项选择题超出项目经理控制的成本增加因素，除了存款利率、贷款利息和税率外，还包括（）。

A．项目日常开支的速度和生产率 
B．项目日常开支的速度和工期拖延 
C．项目补贴和加班 
D．原材料成本和运输成本 

单项选择题经济计量分析的工作程序依次是（）。

A.设定模型、检验模型、估计模型、改进模型 
B.设定模型、估计参数、检验模型、应用模型 
C.估计模型、应用模型、检验模型、改进模型 
D.搜集资料、设定模型、估计参数、应用模型 

单项选择题大型复杂项目各子项目由于目标相同而存在，以下关于子项目的描述不恰当的是（）。

A.需明确各子项目之间相互依赖、相互配合和相互约束的关系 
B.为每一个子项目的绩效测量制定明确的基准 
C.一个子项目的变更不会引起其它子项目范围的巨大的变动 
D.各子项目也应确定明确的范围、质量、进度、成本