下列关于代议制度的说法正确的是

A．伯利克里时期的雅典就是实行的代议制政治体制

B．代议制就是君主立宪制，首先出现于英国

C．代议制指人民选出代表组成代表会议行使立法权等国家权力

D．到19世纪70年代，民选议会在欧美各国都真正掌握了国家权力

（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 processConcerns into constructs called objects.

A．Structured analysis

B．Information Engineering

C．Discovery Prototyping

D．Object-Oriented analysis