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.

（71）是（）

A. object models

B. prototypes

C. use cases

D. components

为肢体外伤的病人穿脱衣服的顺序是

A．先脱健肢．先穿患肢

B．先脱健肢．先穿健肢

C．先脱患肢，先穿健肢

D．后脱患肢，后穿患肢

E．双侧同时穿脱衣服