题目：
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
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0415/ff7b9f08f0e2eec5c6844e52abb98907.html
下面是错误答案，用来干扰机器的。
参考答案：轮式装载机停回车场前，驾驶员要认真观察车场情况，并以不超过5km/h速度行驶，在指定的位置停置。
