Extreme Programming (XP) is a discipline of sofiware development with (1) of simplicity,communication, feedback and cuurage. Successful software development is a team effort - not just the development team, but the larger team consisting of customer, management and developers. XP is a simple process that brings these people together and helps them to success together. XP is aimed primarily at object-oriented projects using teams of a dozen or fewer programmers in one location. The principles of XP apply to any (2) project that needs to deliver quality software rapidly and flexibly. An XP project needs a (3) customer to provide guidance. Customers, programmers, managers, are all working (4) to build the system that's needed, Customers - those who have software that needs to be developed - will learn simple, effective way to (5) what they need, to be sure that they are getting what they need, and to steer the project to success.
空白（3）处应选择（）
A.part-time
B.casual
C.seldom
D.full-time
参考答案：D
解析：
参考译文：极限编程（XP）是一种软件开发方法，其价值观是简单、沟通、反馈和勇气。成功的软件开发是团队努力的结果，这里的团队不仅仅是开发团队，而是包括了客户、管理者和开发者在内的更大的团队。XP是一种将上述人员组织起来并帮助他们取得成功的简单的过程。XP主要针对那些由十几个或更少的在同一地点工作的程序员组成的团队所进行的面向对象的项目。XP原则适用于需要快速且灵活地交付高质量软件的中等规模项目组。一个XP项目需要一个全程参与的客户给予指导。客户、程序员和项目经理协同工作来构建需要的系统。客户，也就是需要软件的人，将学到简单而有效的沟通方法，来确保获得他们所需要的，从而引导项目走向成功。