试题与答案

()对消化系统的损害最为直接。

题型:填空题

题目:

()对消化系统的损害最为直接。

答案:

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参考答案:其一是作为历史概念,主要是指,从现代媒体问世以来,媒体已经深刻地影响着社会,社会也在不断地塑造媒体,两者之间已经形成了微妙的张力关系。其二是作为一个现实概念,主要针对当下社会语境下的媒体...

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题型:单项选择题

(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.

(74)处填()。

A.PERT

B.DFD

C.ERD

D.UML

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