吊笼发生火灾时,在电源未切断之前应该用专用的灭火器来灭火,下列选项中哪个不属于上述的灭火器()。
A、水
B、干粉
C、1211
D、二氧化碳
参考答案:A
能够从上述资料中推出的是:
A.2008年上饶市初中和高中学校数在全省都是最多的
B.2008年赣州市初中毕业生数占全省初中毕业生数的比重超过25%
C.2008年抚州高中招生数高于萍乡市、新余市和鹰潭市高中招生数之和
D.2008年初中在校学生数最多与最少的设区市,与高中在校学生数最多与最少的设区市相同
The purpose of the requirements definition phase is to produce a clear, complete, consistent, and testable ______ of the technical requirements for the software product. During the requirements definition phase, the requirements definition team uses an iterative process to expand abroad statement of the system requirements into a complete and detailed specification of each function that the software must perform and each ______ that it must meet.The starting point is usually a set of high-level requirements from the ______ that describe the project or problem. In either case, the requirements definition team formulates an overall concept for the system and the defines ______ showing how the system will be operated, publishes the system and operation concept documents, and conducts a system concept review(SCR). Following the SCR, the team derives ______ requirements for the system from the high-level requirements and the system operations concept.Using structured or object-oriented analysis, the team specifies the software functions and algorithms needed to satisfy each detailed requirements.
A.detailed B.outlined C.total D.complete