Accelerated analysis approaches emphasize the construction of (71) to more rapidly identify business and user requirements for a new system. As an accelerated analysis technology, (72) reads the program code and automatically generates the equivalent system model, and the code can be obtained from (73) All system analysis approaches require some form of (74) which includes those techniques to be used to identify or extract system problems and solution requirements from user community. (75) is a classical set of techniques used to collect information about system problems, opportunities, solution requirements, and priorities.

（75）是（）

A. Continuous process improvement

B. Joint requirements planning

C. Fact-finding

D. Structured engineering

DSA的X线发生系统的组成包括（）。

A.X线控制与高压发生器

B.图像获取探测器

C.图像处理系统

D.显示系统

E.X线管组件