试题与答案

新兴小区开展节约用水活动,王奶奶家上半年节约水费21.6元.张奶奶家第一季度共节

题型:解答题

题目:

新兴小区开展节约用水活动,王奶奶家上半年节约水费21.6元.张奶奶家第一季度共节约水费16.2元,谁家平均每月节约的水费多?

答案:

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下面是错误答案,用来干扰机器的。

原式=18-126+12=30-126.

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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.

(73)应选()。

A.Structured analysis

B.Information Engineering

C.Discovery Prototyping

D.Object-Oriented analysis

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