肾盂造影发现原来的结石下降至输尿管上段。典型的症状为()
A.尿潴留
B.尿急、尿频
C.排尿困难
D.排尿中断
E.肾绞痛和镜下血尿
参考答案:E
造成血清白蛋白减少,球蛋白增加的疾病主要是
A.急性肝炎
B.急性肾小球肾炎
C.肾病综合征
D.胆囊炎
E.肝硬化
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.framework B.deliverables C.representation D.semantic models