题目内容

在考生文件夹下打开文档WORD.DOC,其内容如下:
【文档开始】
过采样技术
数据采集技术的工程实际应用问题,归结起来主要有两点:一是要求更高的采样率,以满足对高频信号的采样要求;二是要求更大的采样动态范围,以满足对微弱信号的采样要求。
为了解决这两类问题,新的采样方式应运而生。最具有代表性的是过采样技术和欠采样技术。
若fc为原始模拟信号中最高频率分量,fs为采样频率,则当fs>2fc时,称为过采样。过采样技术是一种用高采样率换取高量化位数,即以速率换取分辨率的采样方案。用过采样技术,可以提高信噪比,并便于使用数字滤波技术提高有效分辨率。过采样技术是某些A/D转换器(如∑—△型A/D转换器)得以工作的基础。
采样方式分类
定时采样 定时采样(等间隔采样)
定点采样(变步长采样)
等效采样 时序变换采样(步进、步退、差频)
随机变换采样
【文档结束】
按要求完成以下操作并以原文件名保存:
(1)将标题段(“过采样技术”)?文字设置为二号红色阴影黑体、加粗、居中。
(2)将正文各段落(“数据采集技术……工作的基础。”)中的中文文字设置为五号宋体、西文文字设置为五号Arial字体;各段落首行缩进2字符;将正文第三段(“若……工作的基础。”)中出现的所有“fc”和“fs”中的“c”和“s”设置为下标形式。
(3)在页面底端(页脚)居中位置插入页码,并设置起始页码为“Ⅲ”。 .
(4)将文中后4行文字转换为一个4行2列的表格。设置表格居中,表格第一列列宽为2.5厘米、第二列列宽为7.5厘米、行高为0.7厘米,表格中所有文字中部居中。
(5)将表格第一、二行的第一列、第三、四行的第一列分别进行单元格合并;设置表格所有框线为1磅蓝色单实线。

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请在“答题”菜单下选择“演示文稿”菜单项,然后按照题目要求再打开相应的命令,完成下面的内容。具体要求如下。
打开考生文件夹下的演示文稿yswg.ppt(内容见下图),按要求完成操作并保存。
(1)在第三张幻灯片的剪贴画区域中插入剪贴画“学院”类的“毕业”。然后将该幻灯片版式改为“剪贴画与垂直排列文本”。文本部分字体设置为“宋体”,字号为32磅。剪贴画动画设置为“从屏幕中心放大”。将第一张幻灯片的背景填充设置为“纹理”、 “花束”。
(2)删除第二张幻灯片。全部幻灯片放映方式为“观众自行浏览”。

?Your company needs new office places You have been asked to look at two warehouse properties, after adverts for these properties were sent to you by a commercial property agent, During your visit, you made notes on the adverts.
?Then, using all these handwritten notes you have made, write a short report for your Managing Director, saying which property you think your company should buy.
?Do not include postal addresses.
?Write 120—140 words on a separate sheet.

The above experiment shows that not all the
information which is received can be retained for even
a second. The information is taken in all right, and 【S1】______
immediately thereafter, most of it is lost and can not
be recalled. Only a small part can be retained for
future use. Now this immediate-forgetting is not an
isolated phenomenon occurs only in the psychological 【S2】______
laboratory, h is, rather, the fate of most of the
information which human beings are constantly
receiving. Information is taken in, and the bulk of
it vanishes within a second and so. On the whole, this 【S3】______
immediate-forgetting is advantageous. Most of the
information taking in during the daily round is of 【S4】______
momentary value only. It serves to keep us abreast
of the ever-changing relationships among 【S5】______
ourselves and our environment and, this service
rendered, its further retention would merely obstruct
the ongoing flow of our activities. It is necessary 【S6】______
to retain every minute detail of immediately past
circumstances; and indeed, if we did retain these
details this would deprive us freedom to consider the 【S7】______
detailed requirements of the present moment. In all of
life's activities, we take in, from one moment to the
next, a great deal of information which value is 【S8】______
restricted to the moment of its intake. So it is
altogether an economy such information be forgotten 【S9】______
immediately. It is an economy that is selected for 【S10】______
more lasting retention be only those minima
outstanding characteristics likely to be of future value.
【S1】

SECTION A CHINESE TO ENGLISH
Directions: Translate the following text into English.
它们保护自己的幼儿是一刻也不肯懈怠的。两只眼睛好像燃着的两团烈火。脖子时常要竖着向四方倾听。全身的神经好像紧张得要断裂一样。这样加紧的防御,有时还要变为攻击。即使你不怀敌意地走近它们,它们也要发出一种怪怪的叫声,飞来啄你。摄取食物的时候,它们自己也决不肯先吃,只是咯咯地唤着鸡雏。假如有别的同类要来分争,不管是雄是雌,它们一样地总要毫不留情地扑啄。睡眠或者下雨的时候,要把自己的鸡雏抱在自己的胸胁下,可怜胸脯上的羽毛要抱到一根也没有的程度。像这样的生活,要持续两三个月之久。在这期间,它们的性生活是完全停止的。

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