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问题 填空题

在室内分布系统中，控制信号外泄的方法主要是利用墙体的隔离作用，辅助以外墙附近尽可能安装板状定向天线向内覆盖，另外尽可能使用小功率天线靠近（）。

答案

参考答案：外墙放置

单项选择题

At a basic level,cloud computing is simply a means of delivering ITresources as ____(71)___.Almost all IT resources can be belivered as a cloud service:applications,compute power,storage capacity,networking,programming tools,even communication services and collaboration ____(72)____. Cloud computing began as large-scale Internet service providers such as Google,Amazon,and others built out their infrastructure.Anarchitecture emerged:massively scaled,____(73)____ distributed system resources,abstracted as virtual IT services and managed as continuously configured,pooled resources.In this architecture,the data is mostly resident on ___(74)___ "somewhere on the Internet" and the application runs on both the "cloud servers" and the user’s browser. Both clouds and grids are built to scale horizontally very efficiently.Both are built to withstand failures of ___(75)___ elements or nodes.Both are charged on a per-use basis.But while grids typically process batch jobs,with a defined start and end point,cloud services can be continuous.What’s more,clouds expand the types of resources available - file storage,databases,and Web services - and extend the applicability to Web and enterprise applications.

（75）处填（）。

A．entire

B．individual

C．general

D．separate
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单项选择题

在编制（）时，需要编制预计现金收支计算表。

A.销售预算

B.直接材料消耗及采购预算

C.直接人工成本预算

D.制造费用预算
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