ACCESS窗体中容器类控件的“上边距”属性，表示的是控件的（）。

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问题单项选择题

A、上边界与容器下边界的距离

B、上边界与容器上边界的距离

C、下边界与容器下边界的距离

D、下边界与容器上边界的距离

答案

参考答案：B

单项选择题

三相异步电动机的各种电气制动方法中，最节能的制动方法是（）。

A、再生制动

B、机械制动

C、反接制动

D、能耗制动

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单项选择题案例分析题

Ravi, like many project (1) , had studied the waterfall model of software development as the primary software life-cycle (2) . He has all set to use it for an upcoming project, his first assignment. However, Ravi found that the waterfall model could not be used because the customer wanted the software delivered in stages, something that implied that the system had to be delivered and built in (3) and not as (4) . The situation in many other projects is not very different. The real world rarely presents a problem in which a standard process, or the process used in a previous project, is the best choice. To be the most situation, an existing process must be (5) to the new problem. A development process, even after tailoring, generally cannot handle change requests. To accommodate change requests without losing control of the project, you must supplement the development process with a requirement change management process.

空白（1）处应选择（）

A.customers

B.managers

C.users

D.administrators

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