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[单选题]
计算机系统应包括硬件和软件两部分，软件又必须包括______。
A
A、接口软件B、系统软件C、应用软件D、支撑软件
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试题答案：
B
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打开考生文件夹下的文件“exam7.docx”，并按照下列要求进行排版。
某型计算机峰值性能为数千亿次/秒，主要用于大型科学与工程计算和大规模数据处理，它属于_____。
在Windows中，设置屏幕分辨率的操作是______。
下列关于搜索引擎的原理说法不正确的是____。
计算机安全属性不包括______。
在Word中，当多个已命名的文档打开时，关于保存这些文档的说法中正确的是____。
WinRAR不能实现的功能有_____。
(考生单击窗口下方的“打开应用程序”启动Outlook)请按照下列要求，利用Outlook同时给多人发邮件：
计算机系统由两大部分组成，它们是____。
下列各类计算机存储器中，断电后其中信息会丢失的是______。 下列各类计算机存储器中，断电后其中信息会丢失的是______。 下列各类计算机存储器中，断电后其中信息会丢失的是______。
热门试题
1.
小儿容易发生肠套叠和脱肛的原因是
2.
devaluation
3.
琵琶曲《十面埋伏》是_____民乐。( )
4.
9．在MySQL中，用于实现交叉连接的关键字是
5.
1.Resources can be said to be scarce in both an absolute and relative sense: the surface of the Earth is finite, imposing absolute scarcity; but the scarcity that concerns economists is the relative scarcity of resources in different uses. Materials used for one purpose cannot at the same time be used for other purposes; if the quantity of an input is limited, the increased use of it in one manufacturing process must cause it to become less available for other uses.The cost of a product in terms of money may not measure its true cost to society. The true cost of, say, the construction of a supersonic jet is the value of the schools and refrigerators that will never be built as a result. Every act of production uses up some of society’s available resources; it means the foregoing of an opportunity to produce something else. In deciding how to use resources most effectively to satisfy the wants of the community, this opportunity cost must ultimately be taken into account.In a market economy the price of a good and the quantity supplied depend on the cost of making it, and that cost, ultimately, is the cost of not making other goods. The market mechanism enforces this relationship. The cost of, say, a pair of shoes is the price of the leather, the labor, the fuel, and other elements used up in producing them. But the price of these inputs, in turn, depends on what they can produce elsewhere—if the leather can be used to produce handbags that are valued highly by consumers, the prices of leather will be bid up correspondingly.(5分)1.1 What does this passage mainly discuss?____(1分)A. The scarcity of manufactured goods.B. The value of scarce materials. C. The manufacturing of scarce goods.D. The cost of producing shoes.
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