试题与答案

1999年,一个青年说“今年我的生日已经过了,我现在的年龄正好是我出生年份四个数字之

题型:单项选择题

题目:

1999年,一个青年说“今年我的生日已经过了,我现在的年龄正好是我出生年份四个数字之和”,这个青年是哪年出生的?()

A.1975年

B.1976年

C.1977年

D.1978年

答案:

参考答案:B

解析:

运用验证法,A项,24岁,但1+9+7+5=22,不合题意。B项,23岁,1+9+7+6=23,合乎题意。故选B。

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题型:单项选择题

Information systems design is defined as those tasks that focus on the specification of a detailed computer-based solution. Typically, there are four systems design tasks for in-house development.

1) The first task is to specify (71) ,which defines the technologies to be used by one, more, or all information systems in terms of their data, processes, interfaces, and network components. This task is accomplished by analyzing the data models and process models that are initially created during requirements analys16.

2) The next systems design task is to develop the (72) . The purpose of this task is to prepare technical design specifications for a database that will be adaptable to future requirements and expansion.

3) Once the database prototype has been built, the systems designer can work closely with system users to develop input, output and dialogue specifications. The (73) must be specified to ensure that the outputs are not lost, misrouted, misused, or incomplete.

4) The fourth design task involves packaging all the specifications from the previous design tasks into a set of specifications that will guide the (74) activities during the following phases of the systems development methodology.

Finally, we should (75) and update the project plan accordingly. The key deliverable should include a detailed plan for the construction phase that should follow.

(72)处应填()。

A.database design specifications

B.database organization decisions

C.data structure specifications

D.data distribution decisions

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