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问题 单项选择题

售后服务是指完成交易之后为顾客提供的服务，主要包括产品的技术支持和技术服务及为客户提供的（）。

A.维修服务

B.质量保证服务

C.金融服务

D.增值服务

答案

参考答案：D

单项选择题 共用题干题

Feasibility should be measured throughout the life cycle of system development. The scope and complexity of an apparently feasible project can change after the initial problems and opportunities are fully analyzed or after the system has been designed. Thus, a project that is feasible at one point may become infeasible later. The first feasibility analysis is conducted during the (1). The (2) represents a major feasibility analysis activity since it charts one of many possible implementations as the target for systems design. (3)  is a measure of how well the solution will work in the organization. It is also a measure of how people feel about the system. When it is determined in the later stages of the system life cycle, (4)  is often performed with a working prototype of the proposed system. This is a test of the system's user interfaces and is measured in how easy they are to learn and to use and how they support the desired productivity levels of the users. Economic feasibility has been defined as a cost-benefit analysis. The (5)  technique is a simple and popular method for determining if and when an investment will pay for itself.

空白（1）处应选择（）

A.problem analysis phase

B.preliminary investigation phase

C.requirements analysis phase

D.decision analysis phase
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多项选择题

应向直接上级机关抄送的文件包括( )。

A．向自己下级机关主送的重要文件
B．受双重领导的机关向其中一个领导机关主送的请示
C．向平级业务主管部门主送的请求批准的函件
D．按规定越级向更高层级机关主送的文件
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