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1.Once refactoring is used in XP, it shows that:

1. A. Current estimates should be restructured with the highest cost performance analysis
2. B. Modify projects based on scope changes, resource availability, cost and schedule changes
3. C. Modify the project cost baseline by adding estimates based on differences between completion and delivery costs
4. D. Code reorganization without changing extra out of band functions

一旦 XP 中使用重构，说明：

1. A、应该用最高的成本性能指标分析去重组当前的估算
2. B、根据范围变更、资源可获得性、成本和进度变更修改项目
3. C、根据完成和交付成本的差异增加估算，从而修改项目的成本基线
4. D、在不改变带外额外功能时进行代码重组

2.The development team has completed the task of identifying what will happen in the next iteration. Which of the following tools can make the process transparent throughout the iteration?

1. A. Burnout diagram
2. B. Gantt chart
3. C. Time cost chart
4. D. Management baseline map

开发团队已经完成了识别下一个迭代将要进行的任务。下面哪个工具可以在整个迭代中使流程透明化？

1. A、燃尽图
2. B、甘特图
3. C、时间花费图
4. D、管理基线图

3.What do teams need to do first when estimating user stories?

1. A. Classify user stories according to priority
2. B. Arrange a team meeting to learn the user story
3. C. Test criteria for defining story points
4. D. Estimated by function point analysis

团队估算用户故事时，首先需要做什么？

1. A、根据优先级对用户故事分类
2. B、安排一场团队会议去了解用户故事
3. C、定义故事点的测试标准
4. D、通过功能点分析进行估算