幕墙安装施工应对( )项目进行验收。A．主体结构与立柱、立柱与横梁连接节点安装及防

对地面起保温作用的是[ ]

A、太阳辐射

B、地面辐射

C、地面反射

D、大气逆辐射

下列定义变量的语句中错误的是______。

A) int_int；
B) double int_；
C) char for；
D) float US$

DSA的中文全称叫做（）

A.数字减影成像

B.数字血管成像

C.数字减影血管造影

D.数字造影血管减影

E.数字血管断层成像

Due to a constAntly ______ environment， a poor understanding of the user’s needs and preferences，as well as a ______ of willingness to modify ______ organizational structures and decision models，the full economic potential of Web Information Systems(WIS) has not been realized by now. The data object types of the ______ meta model，the Extended World Wide Web Design Technique(eW3DT)，provide hypertext designers ______ a conceptual，user-centric framework and graphical notation for the construction of both，______ and customized models， during the software development ______ of commercial WIS. A reference model as a normative concept represents an abstraction of a ______ company，its functional units， or its(Web) Information System and is intended to streamline the design and implementation of complex applications at ______costs. As precondition for pursuing a partial globalization strategy，eW3DT ______ between technical and content-specific responsibilities for designing， implementing， and maintaining WIS.

A．exam

B．test

C．reference

D．specialize

某系统主要处理大量随机数据。根据业务需求，该系统需要具有较高的数据容错性和高速读/写性能，则该系统的磁盘系统在选取RAID级别时最佳的选择是______。

A．RAID0
B．RAID1
C．RAID3
D．RAID10