关于胆汁淤积性黄疸的实验室检查，错误的是（）。

A.尿胆原增加

B.总胆红素增加

C.结合胆红素>50％～60％

D.碱性磷酸酶显著增加

E.尿胆红素明显增加

(1)analysis emphasizes the drawing of pictorial system models to document and validate both existing and/or proposed systems. Ultimately, the system models become the (2)for designing and constructing an improved system. (3)  is such a technique. The emphasis in this technique is process-centered. Systems analysts draw a series of process models called (4).(5) is another such technique that integrates data and process concerns into constructs called objects.

空白（4）处应选择（）

A.PERT

B.DFD

C.ERD

D.UML