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问题 选择题

下列山脉中属于我国地势第一阶梯和第二阶梯界线的是

A．雪峰山

B．祁连山

C．长白山

D．天山

答案

B

本题主要考查的是我国地形地势的相关知识。我国地势第一阶梯和第二阶梯界线的是昆仑山——祁连山——横断山脉。

简答题

观察下边漫画，回答下列问题：

（1）漫画反映了一种什么现象？

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（2）面对丰富的商品和多样的服务，我们中学生应该树立怎样的消费意识？请你给出几点温馨的提示。（不少于3点）

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单项选择题

The purpose of the requirements definition phase is to produce a clear, complete, consistent, and testable (1) of the technical requirements for the software product.

During the requirements definition phase, the requirements definition team uses an iterative process to expand a broad statement of the system requirements into a complete and detailed specification of each function that the software must perform and each (2) that it must meet. The starting point is usually a set of high-level requirements from the (3) that describe the project or problem.

In either case, the requirements definition team formulates an overall concept for the system and the defines (4) showing how the system will be operated, publishes the system and operation concept documents,and conducts a system concept review(SCR).

Following the SCR, the team derives (5) requirements for the system from the highlevel requirements and the system operations concept. Using structured or object-oriented analysis, the team specifies the software functions and algorithms needed to satisfy each detailed requirements.

2（）

A．criterion

B．standard

C．model

D．system
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