题目内容
ASCII码只占用一字节而汉字机内码要占用2字节，原因是（）。
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2012年5月第39题获取数字化图像时采用（）颜色子采样模式得到的图像数据量最大。
2012年5月第6题寄存器寻址方式中的操作数放在（）中。
At a basic level, cloud computing is simply a means of delivering IT resources as (1) . Almost all IT resources can be delivered as a cloud service: applications,compute power, storage capacity, networking, programming tools, even communication services and collaboration (2). Cloud computing began as large-scale Internet Service providers such as Google,Amazon,and others built out their infrastructure. An architecture emerged: massively scaled, (3) distributed system resources, abstracted as virtual IT services and managed as continuously configured, pooled resources. In this architecture, the data is mostly resident on (4) "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 (5)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 Service can be continuous. What's more, clouds expand the types of resources available file storage, databases, and Web Service and extend the applicability to Web and enterprise applications. 空白（2）处应选择（）
2011年5月第5题计算机中的浮点数由三部分组成：符号位S、指数部分E（称为阶码）和尾数部分M。在总长度固定的情况下，增加E的位数、减少M的位数可以（）。
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