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1、热处理试题一、选择题1拉伸试验可测定()。A.强度 B.硬度 C.冲击韧性 D.疲劳强度2材料在断裂前所承受的最大应力称为()。A.强度 B.屈服点 C.抗拉强度 D.疲劳强度3HRC 表示()。A.布氏硬度 B.洛氏硬度 C.维氏硬度 D.肖氏硬度4k 表示()。A.屈服点 B.冲击吸收功 C.冲击韧度 D.疲劳强度5冲击试验可测材料的()。A强度 B硬度 C韧性 D疲劳强度6-Fe 是具有()晶格的铁。A体心立方 B 面心立方 C 密排六方 D复杂斜方7-Fe 是具有()晶格的铁。A体心立方 B 面心立方 C 密排六方 D复杂斜方8合金固溶强化主要原因是()。A晶格类型变化 B 晶粒细化
2、C 晶格畸变 D温度升高9奥氏体是()晶格。A体心立方 B 面心立方 C密排六方 D复杂斜方10铁素体与渗碳体的机械混合物是()。A.珠光体 B.莱氏体 C.共晶渗碳体 D.索氏体精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 1 页,共 5 页11纯铁在 600是()晶格。A体心立方 B 面心立方 C 密排六方 D复杂斜方12铁碳合金相图中的A1线是()。A.共析线 B.共晶线 C.碳在奥氏体中的溶解度线 D.缓慢冷却时从奥氏体中析出铁素体开始线13某机械零件要求有较高的强度和韧性,一般选用()制造。A.低碳钢 B.中碳钢 C.高碳钢 D.中高碳钢14含碳量为 1.0%的钢
3、加热到 750的组织是()。A.P+F B.A+F C.P+Fe3C D.A 15为改善低碳钢的切削加工性能,常用的热处理方法是()。A.完全退火 B.球化退火 C.去应力退火 D.正火16T10 钢改善切削加工性能的热处理采用()。A.完全退火 B.球化退火 C.去应力退火 D.正火17下列牌号中属于优质碳素结构钢的是()。A.45 B.T8 C.Q235 D.9SiCr 18钢在规定条件下淬火冷却时获得马氏体组织深度的能力称为()。A.淬透性 B.淬硬性 C.耐磨性 D.热硬性19调质处理是淬火加()的热处理。A.低温回火 B.中温回火 C.高温回火 D.正火20生产中所说的水淬油冷属于(
4、)。A.单液淬火 B.双液淬火 C.分级淬火 D.等温淬火21钢的淬透性由()决定。A.淬火冷却速度 B.钢的临界冷却速度 C.工件的形状 D.工件精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 2 页,共 5 页文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6
5、S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码
6、:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6
7、S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码
8、:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6
9、S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码
10、:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3的尺寸22油、水、盐水、碱水等冷却介质中冷却能力最强的是()。A.油 B.水 C.盐水 D.碱水23亚共析钢的淬火加热温度为()
11、。A.Ac3以上 3050 B.Ac1以上 3050 C.Accm以上3050 D.Ac3以上 5080 24过共析钢的淬火加热温度为()。A.Ac3以上 3050 B.Ac1以上 3050 C.Accm以上3050 D.Ac3以上 5080 25钢淬火的目的主要是为了获得()。A.马氏体 B.珠光体 C.索氏体 D.托氏体26()退火过程中只有应力的减小或消除,而没有组织的变化。A.扩散 B.球化 C.完全 D.去应力27球化退火后的组织是()。A.粒状珠光体 B.片状珠光体 C.粒状索氏体 D.片状索氏体28单液淬火时合金钢多采用()冷却。A.油 B.水 C.盐水 D.碱水29正火后的组织
12、比退火的()。A.细 B.粗 C.相等 D.几乎一样30属于淬火缺陷的是()。A.偏析 B.气泡 C.白点 D.硬度不足二、判断题1金属的性能包括使用性能和工艺性能 ()精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 3 页,共 5 页文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B
13、9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V
14、9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B
15、9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V
16、9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B
17、9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V
18、9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I32韧性是拉伸试验获得的。()3HV表示材料的布氏硬度。()4一般说晶粒越粗金属的力学性能越好。()5再结晶
19、温度之上进行的变形加工叫热加工。()6铁碳合金的共晶温度是727。()7去应力退火组织无变化。()8单晶体塑性变形的主要方式是滑移。()9灰铸铁中的石墨主要以片状石墨存在。()10含碳量小于 5%的钢属于低合金钢 ()11Q235属于碳素结构钢。()121Cr18Ni9 属于不锈钢。()13淬透性好的钢,淬硬性一定好。()14正火的加热温度是Ac1线以上 20-30。()15强度是由冲击试验获得的。()16渗碳体的含碳量是6.69。()17铸铁中的 C、Si 是促进石墨化的元素 ()18热处理的基本过程是加热、保温和冷却。()19硬度高的材料则强度必然也高。()20钢件淬火后发现裂纹,如裂纹两
20、侧有氧化脱碳现象,则淬火前裂纹就已存在。()21可锻铸铁可以锻造。()22共析钢的含碳量是0.77%()23鉄碳合金的基本相是铁素体和奥氏体。()精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 4 页,共 5 页文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S
21、5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:
22、CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S
23、5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:
24、CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S
25、5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:
26、CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I324硫是钢中的有害元素,它可造成钢的冷脆性。()25含碳量为0.15%和 0.35%的钢属于亚共析钢,它们的力学性能相同。()26
27、黄铜是铜与锌的铜合金。()27铸铁冷却速度越快越有利于石墨化。()28马氏体是一种非稳定的组织。()29合金钢只有经过热处理,才能显着提高其力学性能。()30所有的合金元素都能提高钢的淬透性。()热处理试题答案一、选择1、A 2、C 3、B 4、C 5、C 6、A 7、B 8、C 9、B 10、A 11、A 12、A 13、B 14、C 15、D 16、B 17、A 18、A 19、C 20、B 21、B 22、D 23、A 24、B 25、A 26、D 27、A 28、A 29、A 30、D 二、判断1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1
28、9 20 21 22 23 24 25 26 27 28 29 30 精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 5 页,共 5 页文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X
29、6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编
30、码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X
31、6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编
32、码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X
33、6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3文档编码:CQ3W4T5B9W3 HI2M5X6S5P2 ZN8V9J2F6I3