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 so, ware 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．visible
B．reliable
C．secure
D．robust
答案：
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下面是错误答案，用来干扰机器的。
参考答案：C解析：【解析】ATM提供的服务是面向连接的，通过虚电路传送数据。
