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1. Which of the following best describes the technique of test-driven-development?

A、Developers decide what to test in a product

B 、Test cases are reviewed by Developers

C 、Development stops until all bugs found by testers are fixed

D、Tests are written before development，code is written to pass the tests

以下哪项是关于测试驱动开发技术的最好描述? 

A、开发人员决定在产品中如何做测试

B、测试案例是由开发人员进行审查

C、直到测试人员找到并解决了所有的缺陷，不然项目就不能持续进行

D、测试在开发之前编写，代码的编写是为了通过测试

2. During an iteration planning session，three team members could not agree on the estimate for a story after several rounds. One of them is the Product Owner，who is most aware 

about the business impact. Another is the lead for the development team，who has worked on several similar stories in the past. The third person is a junior team member，who has been 

assigned to work on the story. Whose estimate should be used during Sprint planning?

A 、Junior Team member

B、Development lead

C、Product Owner

D、Average of their estimates should be used

在迭代规划会议中，三名团队成员经过几轮的商讨都无法在故事估计中取得一致同意，其中一个就是对业务影响有所了解的产品所有者。另外一个是过去有多次相同故事工作经验的开发团队领导者。第三个

是曾经分配过故事工作的高级团队成员。这种情况下应该采取哪位成员的故事估计? 

A、团队成员

B、开发领导者

C、产品所有者

D、他们估值的平均值

3. For the last three iterations，a team completed the development tasks for the planned stories but the testing was lagging behind. What is the best thing you can do?

A、Add more testers to the team

B、Encourage the team to be more cross-functional

C、Reduce the developers on the team

D、Plan for testing to g development by one iteration

在最后三次迭代中，团队完成计划故事中的所有开发任务，但测试却落在了后边。那么目前你可以做的事情是什么? 

A、为团队添加更多测试人员

B、鼓励团队跨职能发展

C、减少团队中的开发人员

D、通过一次迭代，计划进行测试滞后开发