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[单选题]
在Word的编辑状态,利用________菜单中的命令可以选定单元格。(1分)
A
“表格”
B
“工具”
C
“格式”
D
“插入”
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试题答案:
A
答案解释:
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在Word中, 为了将图形置于文字的上一层, 应将图形________。(1分)
文档窗口最大化后将占满整个桌面。
正确的Internet地址是:____。(1分)
13.基于WinSock的TCP/IP通信方式中,采用流方式的是
计算机发展的各个阶段是以采用的物理器件作为标志的。
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18.在浏览器输入http://localhost/测试Ubuntu Apache,如果安装完成则出现的字样是
调制解调器(Modem)的功能是实现( )。
RAM具有的特点是______。(1分)
热门试题
1.
3.Friction is a force which opposes motion. Much of the energy supplied to a complicated machine with many moving parts is wasted in overcoming this opposition. The energy is converted into useless heat. The amount thus lost can be considerably reduced and the life of the machine prolonged by careful lubrication. This reduction improves the efficiency of the machine. Another way in which friction is reduced is to substitute roller or ball bearings for the earlier type of bearing, in which the surfaces in contact move by sliding. Bearings of these later types are used very extensively in many kinds of modern machinery.It must not be assumed, however, that friction is always a disadvantage. In many instances it is highly important. Belts are often used in conveying power from one machine to another. In the absence of friction, this could not be done. The driving wheel would not run the belt, neither would the belt run the wheel to driver. Without friction, then, belted machinery could not be used. Again in the case of all motor vehicles, friction is essential in the operation of the brake. Were there no friction, there could be no brake. But even this illustration does not give an adequate picture of the importance of friction. The vehicle could not even be started if it were not for the friction exerted between the tires and the road. Nails hold in wood, and screws hold in either wood or metal by reason of friction, without which they would be useless. Walking is difficult enough on an icy pavement, but it would be wholly impossible if there were no friction at all between the shoe and the pavement.(5分)3.1Friction arises when____.(1分)A. an opposing force of motion existsB. the energy is wastedC. everything is motionlessD. a complicated machine is supplied with energy
2.
22.跨国公司
3.
下列各项中,不能够正确说明感性认识和理性认识关系的有()。
4.
26.管理的基本职能有那些?
5.
简述分销渠道设计的过程。
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