The Rational Unified Process (RUP) is a software engineering process, which captures many of best practices in modern software development. The notions of (21) and scenarios have been proven to be an excellent way to capture function requirements. RUP can be described in two dimensions - time and content. In the time dimension, the software lifecycle is broken into cycles. Each cycle is divided into four consecutive (22) which is concluded with a well-defined (23) and can be further broken down into (24) - a complete development loop resulting in a release of an executable product, a subset of the final product under development, which grows incrementally to become the final system. The content structure refers to the disciplines, which group (25) logically by nature.

22（）

A.orientations

B.views

C.aspects

D.phases

对导游人员的组织能力和独立处理问题能力的实战检验，以及对其导游技能和心理素质的全面检阅一般在旅游的（）阶段。

A.旅游初期

B.旅游后期

C.旅游中期

D.旅游结束后