(71) analysis emphasizes the drawing of pictorial system models to document and validate both existing and/or proposed systems. Ultimately, the system models become the (72) for designing and constructing an improved system. (73) is such a technique. The emphasis in this technique is process-centered. Systems analysts draw a series of process models called (74) . (75) is another such technique that integrates data and process concerns into constructs called objects.

A．Structured analysis
B．Information Engineering
C．Discovery Prototyping
D．bject-Oriented analysis

有关市场预期理论，下列叙述不正确的是( )。

A．市场预期理论又称“无偏预期”理论，利率期限结构完全取决于对未来利率的市场预期

B．预期未来利率上升，利率曲线结构会呈下降趋势；预期未来利率下降，利率曲线结构会呈上升趋势

C．在市场预期理论中，某一时点的各种期限债券的即期利率不同，特定时期，市场上预计所有债券都取得相同的收益率，不管其期限的长短

D．长期债券是短期债券的理想替代物，长短期债券取得相同的收益率，市场是均衡的