Sound travels in the same way as light _____.
A.travel
B.has done
C.traveled
D.does
答案:D
()analysis emphasizes the drawing of pictorial system models to document and validate both existing and/or proposed systems. Ultimately, the system models become the()for designing and constructing an improved system.()is such a technique. The emphasis in this technique is process-centereD. Systems analysts draw a series of process models called().()is another such technique that integrates data and process concerns into constructs called objects.
Systems analysts draw a series of process models called ().
A.PERT
B.DFD
C.ERD
D.UML
南京市某银行楼高60层,属于商业办公大楼,每层平面面积近400平米,有12部高速电梯,假设由你设计方案,你会注意那些重点问题,为什么?