1、The ( ) process differs from the ( ) process in that the former is primarily concerned with acceptance of the deliverables,while the latter is primarily concerned with correctness of the deliverables.

A. Perform Quality Assurance

B. Validate Scope

C. Control Quality

D. Define Scope

2、A. Perform Quality Assurance

B. Validate Scope

C. Control Quality

D. Define Scope

JRS直播解析：

（）过程不同于（）过程，前者主要关注可交付成果的接受，而后者主要关注可交付成果的正确性。

A、执行质量保证

B、验证范围

C、控制质量

D、定义范围

（2）、A、执行质量保证

B、验证范围

C、控制质量

D、定义范围

JRS直播参考答案：B、C

3、( ) is a tehnique for estimating the duration or cost of an activity or a project using historical data from a similar activity or project.

A. Analogous estimating

B. parametric estimating

C. Three-Point estimating

D. Bottom estimating

JRS直播解析：

()是一种使用来自类似活动或项目的历史数据来估计活动或项目的持续时间、成本的技术。

A、类比估算

B、参数估算

C、三点估算

D、自下而上估算

JRS直播参考答案：A