AB直线的象限角为北偏西45°,则BA直线的方位角为()。
(A)15°;
(B)115°;
(C)215°;
(D)135°。
参考答案:D
2003年我国开始实施振兴东北老工业基地计划。根据国民经济建设的第一个五年计划可知,东北地区是[ ]
A.轻工业基地
B.重工业基地
C.军工产品基地
D.日用产品基地
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