He found very difficultthe math problem.

下列有关金属的说法错误的是（　　）

A．金属具有金属光泽，常温下金属都是固体

B．生铁和钢是含碳量不同的铁合金，其中生铁的含碳量大于钢的含碳量

C．炒完菜后，应及时除掉锅底的水，这样可以防止铁锅生锈

D．金属的回收利用是保护金属资源的有效途径之一

癔症不包括（）

A.流行性癔症

B.分离性障碍

C.惊恐障碍

D.转换性障碍

E.分离性漫游

The analysis phase answers the questions of who will use the system, what the system will do, and where and when it will be used. During this phase, the project team investigates any current system, identifies (1), and develops a concept for the new system. This phase has three steps: first, (2) is developed to guide the project team’s efforts. It usually includes an analysis of the current system and its problems, and the ways to design a new system. The next step is(3). The analysis of this information-in conjunction with input from the project sponsor and many other people-leads to the development of a concept for a new system. The system concept is then used as a basis to develop a set of business analysis models that describes how the business will operate if the new system were developed. The set of models typically includes models that represent the(4) necessary to support the underlying business process. Last, the analyses, systemconcepts, and models are combined into a document called the (5), which is presented to the project sponsor and other key decision makers that decide whether the project should continue to move forward.

空白（4）处应选择（）

A.data andprocesses

B.system infrastructures

C.external agents

D.system software

工程项目合同示范文本制定的目的是( )。

A．指导合同当事人订立合同

B．增强当事人必要的法律常识

C．使合同形成一种统一的形式

D．规定当事人的权利及义务

使用“应用程序向导”创建的项目，除项目外还自动生成一个 【7】 。