The software architecture of a program or computing system is the structure or structures of the system, which comprise software ______, the externally ______properties of those components, and the relationships between them.The architecture is not the operational software. Rather, it is a ______ that enables a software engineer to: analyze the ______ of the design in meeting its stated requirements, consider architectural alternatives at a stage when making design changes is still relatively easy, and reduce the ______ associated with the construction of the software.

A. changeability B. effectiveness C. testability D. functionality

电力电缆的交接试验内容包括（）等。

A.测量非金属屏蔽层电阻

B.充油电缆的绝缘油试验

C.直流耐压试验

D.测量绝缘电阻

E.交叉互联系统试验