[求助]问个七号信令的题目

totomm

<p class="4" style="MARGIN: 8pt 0cm 8pt 3cm; TEXT-INDENT: 0cm;"><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体;">七号信令中，请按由高至低的优先级顺序，写出基本差错控制方法时发送信令单元的优先级顺序 <span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="mso-spacerun: yes;">&nbsp;</span></span>：<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 4pt 0cm 4pt 103.05pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo2; tab-stops: list 103.05pt;"><span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;">A、</span></span><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体;">标志码<span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 4pt 0cm 4pt 103.05pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo2; tab-stops: list 103.05pt;"><span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;">B、</span></span><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体;">新的消息信令单元<span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 4pt 0cm 4pt 103.05pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo2; tab-stops: list 103.05pt;"><span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;">C、</span></span><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体;">链路状态信令单元<span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 4pt 0cm 4pt 3cm;"><span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体;">D </span><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体;">、填充信令单元<span lang="EN-US"><span style="mso-tab-count: 1;">
                                </span><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 4pt 0cm 4pt 3cm;"><span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体;">E</span><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体;">、未得到证实和收到负证实的消息信令单元<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 4pt 0cm 4pt 3cm;"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体;">正确答案：<span lang="EN-US">ABCDE</span></span></p><p class="MsoNormal" style="MARGIN: 4pt 0cm 4pt 3cm;"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体;"><span lang="EN-US"></span></span></p><p class="MsoNormal" style="MARGIN: 4pt 0cm 4pt 3cm;"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体;"><span lang="EN-US">想知道这个答案对吗 我怎么觉得优先级的话应该先发送未证实的消息呢？</span></span></p>