航空 发表于 2011-6-19 09:00:24

M6维护技术基础-3

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航空 发表于 2011-6-19 09:00:39

<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN lang=EN-US><FONT face="Times New Roman">1<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">美国民航运输协会</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">ATA100</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">规范</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">21-49</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">章是有关飞机</SPAN><SPAN lang=EN-US><FONT face="Times New Roman"><SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>3<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">基本维护程序</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">飞机结构</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; FONT-FAMILY: 宋体; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">飞机系统</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">发动机</SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN lang=EN-US><FONT face="Times New Roman">2<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">材料的弹性模量</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">E</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">表示什么?</SPAN><SPAN lang=EN-US><FONT face="Times New Roman"><SPAN style="mso-tab-count: 1">&nbsp;&nbsp; </SPAN>1<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; FONT-FAMILY: 宋体; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">材料发生单位弹性应变时所需要的应力</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">单位应力在材料中所引起的弹性应变。</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">材料抵抗塑性变形的能力</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">材料抵抗变形的难易程度,弹性模量越小,材料的刚度越大。</SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN lang=EN-US><FONT face="Times New Roman">3<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>2024</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">铝合金铆钉在使用前进行热处理并在时效前进行铆接的目的?</SPAN><SPAN lang=EN-US><FONT face="Times New Roman"><SPAN style="mso-tab-count: 1">&nbsp;&nbsp; </SPAN>3<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">变硬和增加强度</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">加速时效硬化</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; FONT-FAMILY: 宋体; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">使之软化以便于铆接</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">消除内部应力</SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN lang=EN-US><FONT face="Times New Roman">4<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">试车时飞机</SPAN><SPAN lang=EN-US><FONT face="Times New Roman"><SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN>1<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">必须迎风停放</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">必须顺风停放</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">必须侧风停放</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">可以任意停放</SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN lang=EN-US><FONT face="Times New Roman">5<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">露天顶升航空器时规定</SPAN><SPAN lang=EN-US><FONT face="Times New Roman"><SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>1<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">应迎风停放</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">应顺风停放</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">应侧风停放</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">任意停放</SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN lang=EN-US><FONT face="Times New Roman">6<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">金属材料的硬度是衡量材料软硬程度的指标。</SPAN><SPAN lang=EN-US><FONT face="Times New Roman"><SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>1|2|4<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; FONT-FAMILY: 宋体; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">硬度值大,材料的强度极限也大</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; FONT-FAMILY: 宋体; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">根据材料的硬度值可以估计出材料的耐磨性</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">通常用布氏硬度测试法测试成品件的硬度</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; FONT-FAMILY: 宋体; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">布氏硬度测试方法形成的压痕面积大</SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN lang=EN-US><FONT face="Times New Roman">7<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">奥氏体不锈钢的特点?</SPAN><SPAN lang=EN-US><FONT face="Times New Roman"><SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>2<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在常温下是单相奥氏体组织,没有磁性,强度和硬度很高。</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; FONT-FAMILY: 宋体; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在氧化性介质中产生晶间腐蚀,多数是由于热处理不当造成的</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在氯化钠溶液中中产生晶间腐蚀,多数是由于热处理不当造成的。</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在常温下是单相铁素体组织,没有磁性,强度和硬度不高。</SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN lang=EN-US><FONT face="Times New Roman">8<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">铝合金进行淬火热处理后,时效处理之前的过饱和固溶体的性能如何?</SPAN><SPAN lang=EN-US><FONT face="Times New Roman"><SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN>4<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">强度、硬度高,塑性差。</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">强度比退火状态略高一些,塑性好,并且很稳定。</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">强度比退火状态低,塑性好,并且很稳定。</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; FONT-FAMILY: 宋体; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">强度比退火状态略高一些,塑性好,但不稳定</SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN lang=EN-US><FONT face="Times New Roman">9<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">铝合金的人工时效与自然时效相比</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">:<SPAN style="mso-tab-count: 1">&nbsp;&nbsp; </SPAN>4<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">人工时效是把淬火后的铝合金放在室温下进行时效</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">时效过程慢</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">时效温度无法控制</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; FONT-FAMILY: 宋体; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">时效过程快</SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN lang=EN-US><FONT face="Times New Roman">10<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在铝合金</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">2024-O</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">,编号中字母</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">O</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的含义是</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">:<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>3<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">固溶处理</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">加工硬化</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; FONT-FAMILY: 宋体; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">退火处理</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">固溶热处理和人工时效</SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN lang=EN-US><FONT face="Times New Roman">11<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">影响固溶处理时保温时间的主要因素是</SPAN><SPAN lang=EN-US><FONT face="Times New Roman"><SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN>2<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">材料的种类</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; FONT-FAMILY: 宋体; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">材料的厚度</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">材料的使用场合</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">材料的大小</SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN lang=EN-US><FONT face="Times New Roman">12<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN>ZL102</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">表示</SPAN><SPAN lang=EN-US><FONT face="Times New Roman"><SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN>4<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">序号为</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">1</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的铝</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">-</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">铜系铸造铝合金。</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">序号为</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">1</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的铝</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">-</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">镁系铸造铝合金。</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">序号为</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">2</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的铝</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">-</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">铜系铸造铝合金。</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; FONT-FAMILY: 宋体; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">序号为</SPAN><SPAN style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt" lang=EN-US><FONT face="Times New Roman">2</FONT></SPAN><SPAN style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; FONT-FAMILY: 宋体; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的铝</SPAN><SPAN style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt" lang=EN-US><FONT face="Times New Roman">-</FONT></SPAN><SPAN style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; FONT-FAMILY: 宋体; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">硅系铸造铝合金</SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN lang=EN-US><FONT face="Times New Roman">13<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">与硬铝合金相比,超硬铝的</SPAN><SPAN lang=EN-US><FONT face="Times New Roman"><SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>4<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">强度极限比较低而屈服极限比较高。</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">强度极限比较高而屈服极限比较低。</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">强度极限和屈服极限都比较低。</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; FONT-FAMILY: 宋体; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">强度极限和屈服极限都比较高</SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN lang=EN-US><FONT face="Times New Roman">14<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">关于航空上常用的酚醛塑料,下列说法哪些是正确的?</SPAN><SPAN lang=EN-US><FONT face="Times New Roman"><SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>3|4<SPAN style="mso-tab-count: 1">&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">酚醛塑料是以酚醛树脂为主要成分的热塑性塑料。</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">溶剂对酚醛塑料的侵蚀作用很大。</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; FONT-FAMILY: 宋体; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">酚醛塑料具有良好的绝缘性</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; FONT-FAMILY: 宋体; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">石棉胶木常用来制作刹车片、摩擦盘等</SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN lang=EN-US><FONT face="Times New Roman">15<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">复合材料的增强纤维对复合材料性能有哪些影响?</SPAN><SPAN lang=EN-US><FONT face="Times New Roman"><SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>2|4<SPAN style="mso-tab-count: 1">&nbsp;&nbsp; </SPAN></FONT></SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">增大增强纤维的直径可以改善复合材料的疲劳性能</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; FONT-FAMILY: 宋体; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">为复合材料提供了破损安全性</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp; </FONT></SPAN></SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">使复合材料具有塑性材料的特性</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; FONT-FAMILY: 宋体; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">选用增强纤维的铺设方向和层数,使复合材料具有可设计性</SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN lang=EN-US><FONT face="Times New Roman">16<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">轮胎充气压力不符合要求,会对轮胎造成怎样的损伤?</SPAN><SPAN lang=EN-US><FONT face="Times New Roman"><SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>3<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">充气压力过低,会减少轮胎的疲劳寿命。</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">充气压力过低,会使轮胎承受的载荷加大。</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">充气压力过高,会使轮胎的减震性能变差。</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">充气压力过高,会使轮胎产生鼓包、脱层和爆胎等现象。</SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN lang=EN-US><FONT face="Times New Roman">17<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">以下哪种材料不是复合材料</SPAN><SPAN lang=EN-US><FONT face="Times New Roman"><SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>3<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></FONT></SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">玻璃纤维增强塑料</SPAN><SPAN lang=EN-US><SPAN style="mso-tab-count: 1"><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></SPAN></SPAN></P>

a20110606 发表于 2011-7-9 12:27:27

路过!!!!!!!

aliex 发表于 2011-10-23 22:02:30

楼主辛苦了

z13597320268 发表于 2013-10-18 21:08:31

求第一章题库

chao63 发表于 2013-12-13 13:01:23

学习一下,谢谢。

huhongyan 发表于 2015-1-20 11:06:11

值得拥有,嘻嘻
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