在目标市场的选择模式中，企业同时向几个细分市场销售一种产品，属于()。

A.选择专业化

B.单一市场集中化

C.市场专业化

D.产品专业化

The software architecture of a program or computing system is the structure or structures of the system, which comprise software （1）, the externally （2） properties of those components, and the relationships between them. The architecture is not the operational software. Rather, it is a （3）that enables a software engineer to: analyze the （4） 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 （5） associated with the construction of the software.

5（）

A.quality

B.budget

C.schedules

D.risks