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标题:
冰天雪地后空翻跪求答案!
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时间:
2007-12-13 16:17
作者:
wczxb
标题:
冰天雪地后空翻跪求答案!
<p class="MsoNormal" style="MARGIN: 4pt 0cm; LINE-HEIGHT: 125%;"><b><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman";">选择题</span></b><font face="Times New Roman"><b><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;"><span style="mso-spacerun: yes;"> </span></span></b><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;">1</span></font><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman";">、（</span><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman";">）决定了可以从</span><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;"><font face="Times New Roman">SDH</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman";">信号中直接分</span><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;"><font face="Times New Roman">/</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman";">插出低速支路信号。</span><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 4pt 0cm; LINE-HEIGHT: 125%;"><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>A</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman";">：统一光接口</span><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>B</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman";">：同步复用</span><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>C</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman";">：丰富的开销比特</span><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>D</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman";">：净负荷透明</span><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 4pt 0cm; LINE-HEIGHT: 125%;"><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;"><font face="Times New Roman">2</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman";">、对</span><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;"><font face="Times New Roman">SDH</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman";">设备而言，当所有外部同步定时基准都丢失时，应选择工作与内部定时源的（</span><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman";">）</span><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 4pt 0cm; LINE-HEIGHT: 125%;"><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>A</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman";">：自由运行模式</span><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>B</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman";">：保持模式</span><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span><span style="mso-spacerun: yes;"> </span>C</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman";">：异步模式</span><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>D</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman";">：正常工作模式</span><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 4pt 0cm; LINE-HEIGHT: 125%;"><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">3</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">、下列</span><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">EDFA</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">特点不正确的是（</span><span lang="EN-US" style="COLOR: black;"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">）</span><span lang="EN-US" style="COLOR: black;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 4pt 0cm; LINE-HEIGHT: 125%;"><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>A</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">：工作波长与单模光纤的最小衰减窗口一致</span><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>B</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">：耦合效率高</span><span lang="EN-US" style="COLOR: black;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 4pt 0cm; LINE-HEIGHT: 125%;"><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>C</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">：增益带宽平坦</span><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span><span style="mso-spacerun: yes;"> </span>D</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">：输出功率高</span><span lang="EN-US" style="COLOR: black;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 4pt 0cm; LINE-HEIGHT: 125%;"><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">4</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">、关于</span><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">TMN</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">、</span><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">SMN</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">、</span><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">SMS</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">三者之间的关系，不正确的是（ ）</span><span lang="EN-US" style="COLOR: black;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 4pt 0cm; LINE-HEIGHT: 125%;"><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">A</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">：</span><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">SMN</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">是管理</span><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">SDH</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">的</span><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">TMN<span style="mso-spacerun: yes;"> </span>B</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">：</span><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">SMS</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">是</span><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">TMN</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">的子集</span><span lang="EN-US" style="COLOR: black;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 4pt 0cm; LINE-HEIGHT: 125%;"><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">C</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">：</span><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">SMN</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">由一系列的</span><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">SMS</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">组成</span><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>D</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">：</span><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">SMS</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">不属于</span><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">TMN</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">的范畴</span><span lang="EN-US" style="COLOR: black;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b><span style="COLOR: black; FONT-FAMILY: 宋体;">填空题<span lang="EN-US"><span style="mso-spacerun: yes;"> </span></span></span></b><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">1、一条定时传输链路上最多可安排（ <span style="mso-spacerun: yes;"> </span>）个同步供给单元（SSU），（<span style="mso-spacerun: yes;"> </span>）个SDH定时源。<p></p></span></p><p class="MsoNormal" style="MARGIN: 4pt 0cm; LINE-HEIGHT: 125%;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">2、指针的作用是（<span style="mso-spacerun: yes;"> </span><b>相位校准</b><span style="mso-spacerun: yes;"> </span>）和（<span style="mso-spacerun: yes;"> </span><b><span style="mso-spacerun: yes;"> </span>频率跟踪校准</b><span style="mso-spacerun: yes;"> </span>），其中（<span style="mso-spacerun: yes;"> </span><b>AU-PRT </b><span style="mso-spacerun: yes;"> </span>）指针用于指明高阶VC在AU中的起始位置，其在STM-1中的速率为（<span style="mso-spacerun: yes;"> </span><span style="mso-spacerun: yes;"> </span>），指针值的范围在（<span style="mso-spacerun: yes;"> </span>）。<p></p></span></p><p class="MsoNormal" style="MARGIN: 4pt 0cm; LINE-HEIGHT: 125%;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">3、SDH中复用段保护环启动倒换保护的触发条件是（<span style="mso-spacerun: yes;"> </span>）、（<span style="mso-spacerun: yes;"> </span>）、（<span style="mso-spacerun: yes;"> </span>）、（<span style="mso-spacerun: yes;"> </span>）。<p></p></span></p><p class="MsoNormal" style="MARGIN: 4pt 0cm; LINE-HEIGHT: 125%;"><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">4</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">、光端机收信号通路没有信号提供给复用设备，这时复用设备会产生（</span><span lang="EN-US" style="COLOR: black;"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">）告警，其</span><span lang="EN-US" style="COLOR: black;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 4pt 0cm; LINE-HEIGHT: 125%;"><span style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">下游设备收到（</span><span lang="EN-US" style="COLOR: black;"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">）告警。</span><span style="COLOR: black;"><font face="Times New Roman">
<span lang="EN-US"><p></p></span></font></span></p><span lang="EN-US" style="FONT-SIZE: 10.5pt; COLOR: black; FONT-FAMILY: "Times New Roman"; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">5</span><span style="FONT-SIZE: 10.5pt; COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman"; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-bidi-font-family: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">、再生中继器中均衡电路的作用是（ ）。</span>
时间:
2007-12-13 16:34
作者:
dem.hunter
<p>你那套动作难度不小啊 呵呵 </p><p></p><p> </p>
时间:
2007-12-13 17:17
作者:
服务生
BBBD.
时间:
2007-12-13 17:29
作者:
wczxb
<p class="MsoNormal" style="MARGIN: 4pt 0cm; LINE-HEIGHT: 125%;"><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;"><font face="Times New Roman">2</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: ';">、对</span><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;"><font face="Times New Roman">SDH</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: ';">设备而言，当所有外部同步定时基准都丢失时，应选择工作与内部定时源的（</span><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: ';">）</span><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;">
<p></p></span></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 4pt 0cm; LINE-HEIGHT: 125%;"><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>A</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: ';">：自由运行模式</span><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>B</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: ';">：保持模式</span><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span><span style="mso-spacerun: yes;"> </span>C</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: ';">：异步模式</span><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>D</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: ';">：正常工作模式</span><span lang="EN-US" style="COLOR: black; mso-hansi-font-family: 宋体;">
<p><font color="#3809f7">首先感谢楼上的.但我觉得这题选A也没啥不对呢?对了,忘说了,这是不定项.是不是AB都可以呢?</font></p></span></p><p><font color="#3809f7">首先感谢楼上的.但我觉得这题选A也没啥不对呢?对了,忘说了,这是不定项.是不是AB都可以呢?</font></p>
时间:
2007-12-14 09:54
作者:
wczxb
<p><font color="#ff0000">SDH中复用段保护环启动倒换保护的触发条件是（<span style="mso-spacerun: yes;"> </span>）、（<span style="mso-spacerun: yes;"> </span>）、（<span style="mso-spacerun: yes;"> </span>）、（<span style="mso-spacerun: yes;"> </span>）。</font></p><p><font color="#ff0000"></font></p><p><font color="#ff0000">谁告诉我这题答案啊.谢谢.</font></p>
时间:
2007-12-14 12:08
作者:
kuaileguo
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