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已知一模拟信号幅度均匀分布在范围0到12V内,频率范围为2kHz到4kHz,对该信号抽样、量化、编码

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更多“已知一模拟信号幅度均匀分布在范围0到12V内,频率范围为2k…”相关的问题

第1题

The Getty Center 1.The Getty Center attracts 1.1 m...

The Getty Center 1.The Getty Center attracts 1.1 million visitors a year. It is one of the most popular art museums in the US. One reason for its popularity may be that the Getty is free. No tickets to buy, and no reservations needed.There is a $15 parking fee, but you do not have to pay for parking after 5 p.m. And there is convenient public transportation. 2.A tram(接驳车)carries you from the parking area up to the hilltop campus. When you step out, you come face to face with views of the Pacific Ocean, the Santa Monica, and vast open area of Los Angeles. 3.Then you will see the five main buildings that house the museum’ s collection surrounding a central courtyard The buildings are connected by glassed walkways. So you can enjoy the view again while you move from one building to another. One of the outstanding characteristics of museum is the natural light that shines through each building's computer-controlled louvers(百叶窗).It allows viewers to look at paintings in the same natural light in which they were created. 4.Part of the large campus is used for a series of gardens. The Central Garden was designed by Robert Irwin. He himself built everything from the handrails(扶手)to the waterfall to create a special and artistic experience in nature. 5.The Getty Center makes an effort to satisfy visitors. There is a cafe that offers lunches and snacks. There is also a restaurant for more formal meals, but it usually requires reservations. The museum includes a family room that lets kids create artwork and offers educational programs for everyone. Paragraph 1_____A.The Service

B.The Gardens

C.The Buildings

D.The Collection

E.The Popularity

F.The Surroundings

Paragraph 2_____A.The Service

B.The Gardens

C.The Buildings

D.The Collection

E.The Popularity

F.The Surroundings

You can walk from one building to another through _____.A.hire a guide

B.draw pictures

C.the natural light

D.make reservations

E.the glassed walkways

F.the handrails and waterfall

At the Getty Center, visitors can enjoy paintings in _____.A.hire a guide

B.draw pictures

C.the natural light

D.make reservations

E.the glassed walkways

F.the handrails and waterfall

Robert Irwin himself constructed _____.A.hire a guide

B.draw pictures

C.the natural light

D.make reservations

E.the glassed walkways

F.the handrails and waterfall

In the family room, children can _____.A.hire a guide

B.draw pictures

C.the natural light

D.make reservations

E.the glassed walkways

F.the handrails and waterfall

Paragraph 4_____A.The Service

B.The Gardens

C.The Buildings

D.The Collection

E.The Popularity

F.The Surroundings

Visitors to the Getty Center do not need to _____.A.hire a guide

B.draw pictures

C.the natural light

D.make reservations

E.the glassed walkways

F.the handrails and waterfall

Paragraph 5_____A.The Service

B.The Gardens

C.The Buildings

D.The Collection

E.The Popularity

F.The Surroundings

Paragraph 3_____A.The Service

B.The Gardens

C.The Buildings

D.The Collection

E.The Popularity

F.The Surroundings

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第2题

Thereisaproblemstartingatelnetsessiononasystem.Whichofthefollowingdaemonsshouldbechecked?()

A.tftpd

B.inetd

C.getty

D.rlogind

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第3题

WindowsNT中HOSTS文件是用来保寸主机名字映射为IP地址的静态文件,该文件与UNIX的()文件兼容。

A./etc/hosts

B./etc/passwd

C./etc/wtmp

D./etc/getty

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第4题

案情介绍:据中国商务部政策研究室统计资料,1995-2004年中国对外贸易条件出现某些值得注意的发展趋势,具体情
况见表1.1所示。

<table width="600" height="188" border="0" align="center" cellpadding="0" cellspacing="0">

<tr>

<td><p align="center">表1.1 1995-2004年中国外贸条件走势分析</p>

<table width="585" height="98" border="0" align="center" cellpadding="0" cellspacing="1" bordercolor="#000000" bgcolor="#000000">

<tr align="center" valign="middle" bordercolor="#000000" bgcolor="#FFFFFF">

<td width="85" height="32"><div align="center">年份</div></td>

<td width="44"><div align="center">1995</div></td>

<td width="51"><div align="center">1996</div></td>

<td width="47"><div align="center">1997</div></td>

<td width="48"><div align="center">1998</div></td>

<td width="50"><div align="center">1999</div></td>

<td width="50"><div align="center">2000</div></td>

<td width="50"><div align="center">2001</div></td>

<td width="50"><div align="center">2002</div></td>

<td width="50"><div align="center">2003</div></td>

<td width="48"><div align="center">2004</div></td>

</tr>

<tr align="center" valign="middle" bordercolor="#000000" bgcolor="#FFFFFF">

<td width="85"><div align="center">净贸易条件</div></td>

<td width="44"><div align="center">100</div></td>

<td width="51"><div align="center">103</div></td>

<td width="47"><div align="center">107</div></td>

<td width="48"><div align="center">104</div></td>

<td width="50"><div align="center">98</div></td>

<td width="50"><div align="center">94</div></td>

<td width="50"><div align="center">91</div></td>

<td width="50"><div align="center">88</div></td>

<td width="50"><div align="center">86</div></td>

<td width="48"><div align="center">85</div></td>

</tr>

<tr align="center" valign="middle" bordercolor="#000000" bgcolor="#FFFFFF">

<td width="85"><div align="center">收入贸易条件</div></td>

<td width="44"><div align="center">100</div></td>

<td width="51"><div align="center">101.7</div></td>

<td width="47"><div align="center">130.9</div></td>

<td width="48"><div align="center">133</div></td>

<td width="50"><div align="center">140.7</div></td>

<td width="50"><div align="center">156.4</div></td>

<td width="50"><div align="center">161.3</div></td>

<td width="50"><div align="center">189.9</div></td>

<td width="50"><div align="center">217.6</div></td>

<td width="48"><div align="center">225.5</div></td>

</tr>

</table></td>

</tr>

</table>

试运用国际贸易相关知识对此进行分析。

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第5题

When line errors occur, which of the following commands should be sued to cause init to re-read the /etc/inittab file if init stops respawning the getty process on a TTY?()

A.alog

B.telinit

C.sysinit

D.cfgmgr

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第6题

Find the center and vertices of the ellipse. ()

A.center: vertices:

B.center: vertices:

C.center: vertices:

D.center: vertices:

E.center: vertices:

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第7题

()is a logistics center where most inbound goods are the whole truck and most outbound goods are pieces.

A.Collection center

B.Collection goods center

C.Consolidation center

D.Deconsolidation center

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第8题

()is a logistics center where most inbound goods are the whole truckload and most outbound goods are small pieces.

A.Collecting center

B.Collection goods center

C.Consolidation center

D.Deconsolidation center

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