首页
试卷库
试题库
当前位置：
X题卡
>
所有题目
>
题目详情
A-B二元合金相图如图25-4所示。在固相不扩散、液相完全混合条件下，水平放置的质量分数wC=20%的A-B二元合金熔液从左至右定向凝固成长为L的横截面均匀的合金棒。 计算合金棒中单相α固溶体段的...
查看本题答案
包含此试题的试卷
国家统考科目《问答集》真题及答案
点击查看
你可能感兴趣的试题
1．Cu-Cd-Ag三元合金液相面投影图如图所示写出图中O点合金的成分并估计它的熔点分别写出图中a
A-B二元合金相图如图4-1所示在固相不扩散液相完全混合的条件下水平放置的质量分数wB=40%的A-
三元合金相图中的垂直截面与二元合金相图有何不同为什么二元合金相图可以使用杠杆定律来分析各个相的相对含
二元合金相图表达了合金的哪些关系
在二元系合金相图中计算两相相对量的杠杆法则只能用于
单相区中
两相区中
三相平衡水平线上
A-B二元合金相图如图25-4所示在固相不扩散液相完全混合条件下水平放置的质量分数wC=20%的A-
Fe-Ti二元合金相图如图所示 1．填出图中两相区中存在的相 2．写出595℃1085℃1289℃
能够无限互溶的两组元素所构成的二元合金相图必定是
匀晶相图
共晶相图
包晶相图
共析相图
判断下列命题正确与否1．晶体滑移的方向就是该滑移面内位错线运动的方向2．晶体中可以形成纯刃型位错环3
A-B二元合金相图如图25-4所示在固相不扩散液相完全混合条件下水平放置的质量分数wC=20%的A-
图27-6为Al-Cu二元合金相图今将含wC=2%的合金棒在固相中无扩散液相中完全混合液固界面平面推
根据Ag-Cu二元相图如图所示 1写出图中的液相固相线α和β相的溶解度曲线及三相恒温转变线 2计
二元合金相图有
匀晶相图
共晶相图
包晶相图
共析相图
根据图示A-B二元共晶相图共晶温度为600℃将ωB=10%的合金用同样成分的籽晶在固相无扩散液相完
A-B二元合金相图如图25-4所示在固相不扩散液相完全混合条件下水平放置的质量分数wC=20%的A-
能够无限互溶的两组元素所构成的二元合金相图必定是
匀晶相图
共晶相图
包晶相图
共析相图
A-B二元合金相图如图4-1所示在固相不扩散液相完全混合的条件下水平放置的质量分数wB=40%的A-
A-B二元合金相图如图4-1所示在固相不扩散液相完全混合的条件下水平放置的质量分数wB=40%的A-
A-B二元合金相图如图25-4所示在固相不扩散液相完全混合条件下水平放置的质量分数wC=20%的A-
A-B二元合金相图如图所示在固相不扩散液相完全混合条件下水平放置的质量分数wB=40%的A-B二元
热门试题
更多
夹闭两侧颈总动脉可引起
急性淋巴管炎和急性淋巴结炎的致病菌常为
B型萎缩性胃炎
下述哪些过程需要细胞本身耗能
参与细胞内信息传递的第二信使物质有
按照国际对慢性淋巴细胞白血病的分期A期病人可有
颈椎病神经根型
能促进肺心病发生心力衰竭的因素有
早期胃癌包括
肾功能衰竭期
In1924American’NationalResearchCouncilsenttoengineerstosuperviseaseriesofindustrialexperimentsatalargetelephone-partsfactorycalledtheHawthornePlantnearChicago.Ithopedtheywouldlearnhowstop-floorlignting__1__workersproductivity.Insteadthestudiesended__2___givingtheirnametothe“Hawthorneeffect”theextremelyinfluentialideathatthevery___3____tobeingexperimenteduponchangedsubjects’behavior.Theideaarosebecauseofthe__4____behaviorofthewomenintheHawthorneplant.Accordingto__5____oftheexperimentstheirhourlyoutputrosewhenlightingwasincreasedbutalsowhenitwasdimmed.Itdidnot__6____whatwasdoneintheexperiment;___7_sometingwaschangedproductivityrose.An___8___thattheywerebeingexperimenteduponseemedtobe____9___toalterworkers’behavior____10____itself.Afterseveraldecadesthesamedatawere_11__toeconometrictheanalysis.Hawthorneexperimentshasanothersurprisestore_12__thedescriptionsonrecordnosystematic_13__wasfoundthatlevelsofproductivitywererelatedtochangesinlighting.Itturnsoutthatpeculiarwayofconductingtheexperimentsmaybehaveletto__14__interpretationofwhathapped.__15___lightingwasalwayschangedonaSunday.WhenworkstartedagainonMondayoutput__16___rosecomparedwiththepreviousSaturdayand__17__toriseforthenextcoupleofdays.__18__acomparisonwithdataforweekswhentherewasnoexperimentationshowedthatoutputalwayswentuponMondayworkers__19__tobediligentforthefirstfewdaysoftheweekinanycasebefore__20__aplateauandthenslackeningoff.Thissuggeststhatthealleged“Hawthorneeffect”ishardtopindown. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.2
流行性乙型脑炎的基本病变有
In1924American’NationalResearchCouncilsenttoengineerstosuperviseaseriesofindustrialexperimentsatalargetelephone-partsfactorycalledtheHawthornePlantnearChicago.Ithopedtheywouldlearnhowstop-floorlignting__1__workersproductivity.Insteadthestudiesended__2___givingtheirnametothe“Hawthorneeffect”theextremelyinfluentialideathatthevery___3____tobeingexperimenteduponchangedsubjects’behavior.Theideaarosebecauseofthe__4____behaviorofthewomenintheHawthorneplant.Accordingto__5____oftheexperimentstheirhourlyoutputrosewhenlightingwasincreasedbutalsowhenitwasdimmed.Itdidnot__6____whatwasdoneintheexperiment;___7_sometingwaschangedproductivityrose.An___8___thattheywerebeingexperimenteduponseemedtobe____9___toalterworkers’behavior____10____itself.Afterseveraldecadesthesamedatawere_11__toeconometrictheanalysis.Hawthorneexperimentshasanothersurprisestore_12__thedescriptionsonrecordnosystematic_13__wasfoundthatlevelsofproductivitywererelatedtochangesinlighting.Itturnsoutthatpeculiarwayofconductingtheexperimentsmaybehaveletto__14__interpretationofwhathapped.__15___lightingwasalwayschangedonaSunday.WhenworkstartedagainonMondayoutput__16___rosecomparedwiththepreviousSaturdayand__17__toriseforthenextcoupleofdays.__18__acomparisonwithdataforweekswhentherewasnoexperimentationshowedthatoutputalwayswentuponMondayworkers__19__tobediligentforthefirstfewdaysoftheweekinanycasebefore__20__aplateauandthenslackeningoff.Thissuggeststhatthealleged“Hawthorneeffect”ishardtopindown. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.8
下列哪些疾病易继发多器官功能障碍综合征
骨软骨瘤好发于
外周小动脉收缩时
发生肠内瘘可见于
单纯右心室梗塞
肺泡表面活性物质的作用有
蛋白质生物合成时需要的是
能抑制脂酸合成的是
下列哪些是门静脉__症腹水形成的因素
In1924American’NationalResearchCouncilsenttoengineerstosuperviseaseriesofindustrialexperimentsatalargetelephone-partsfactorycalledtheHawthornePlantnearChicago.Ithopedtheywouldlearnhowstop-floorlignting__1__workersproductivity.Insteadthestudiesended__2___givingtheirnametothe“Hawthorneeffect”theextremelyinfluentialideathatthevery___3____tobeingexperimenteduponchangedsubjects’behavior.Theideaarosebecauseofthe__4____behaviorofthewomenintheHawthorneplant.Accordingto__5____oftheexperimentstheirhourlyoutputrosewhenlightingwasincreasedbutalsowhenitwasdimmed.Itdidnot__6____whatwasdoneintheexperiment;___7_sometingwaschangedproductivityrose.An___8___thattheywerebeingexperimenteduponseemedtobe____9___toalterworkers’behavior____10____itself.Afterseveraldecadesthesamedatawere_11__toeconometrictheanalysis.Hawthorneexperimentshasanothersurprisestore_12__thedescriptionsonrecordnosystematic_13__wasfoundthatlevelsofproductivitywererelatedtochangesinlighting.Itturnsoutthatpeculiarwayofconductingtheexperimentsmaybehaveletto__14__interpretationofwhathapped.__15___lightingwasalwayschangedonaSunday.WhenworkstartedagainonMondayoutput__16___rosecomparedwiththepreviousSaturdayand__17__toriseforthenextcoupleofdays.__18__acomparisonwithdataforweekswhentherewasnoexperimentationshowedthatoutputalwayswentuponMondayworkers__19__tobediligentforthefirstfewdaysoftheweekinanycasebefore__20__aplateauandthenslackeningoff.Thissuggeststhatthealleged“Hawthorneeffect”ishardtopindown. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERS6HEET1.6
下列哪些化合物属于高能磷酸化合物
与肺通气非弹性阻力有关的是
Crigleer-Najjer综合征
In1924American’NationalResearchCouncilsenttoengineerstosuperviseaseriesofindustrialexperimentsatalargetelephone-partsfactorycalledtheHawthornePlantnearChicago.Ithopedtheywouldlearnhowstop-floorlignting__1__workersproductivity.Insteadthestudiesended__2___givingtheirnametothe“Hawthorneeffect”theextremelyinfluentialideathatthevery___3____tobeingexperimenteduponchangedsubjects’behavior.Theideaarosebecauseofthe__4____behaviorofthewomenintheHawthorneplant.Accordingto__5____oftheexperimentstheirhourlyoutputrosewhenlightingwasincreasedbutalsowhenitwasdimmed.Itdidnot__6____whatwasdoneintheexperiment;___7_sometingwaschangedproductivityrose.An___8___thattheywerebeingexperimenteduponseemedtobe____9___toalterworkers’behavior____10____itself.Afterseveraldecadesthesamedatawere_11__toeconometrictheanalysis.Hawthorneexperimentshasanothersurprisestore_12__thedescriptionsonrecordnosystematic_13__wasfoundthatlevelsofproductivitywererelatedtochangesinlighting.Itturnsoutthatpeculiarwayofconductingtheexperimentsmaybehaveletto__14__interpretationofwhathapped.__15___lightingwasalwayschangedonaSunday.WhenworkstartedagainonMondayoutput__16___rosecomparedwiththepreviousSaturdayand__17__toriseforthenextcoupleofdays.__18__acomparisonwithdataforweekswhentherewasnoexperimentationshowedthatoutputalwayswentuponMondayworkers__19__tobediligentforthefirstfewdaysoftheweekinanycasebefore__20__aplateauandthenslackeningoff.Thissuggeststhatthealleged“Hawthorneeffect”ishardtopindown. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.4
In1924American’NationalResearchCouncilsenttoengineerstosuperviseaseriesofindustrialexperimentsatalargetelephone-partsfactorycalledtheHawthornePlantnearChicago.Ithopedtheywouldlearnhowstop-floorlignting__1__workersproductivity.Insteadthestudiesended__2___givingtheirnametothe“Hawthorneeffect”theextremelyinfluentialideathatthevery___3____tobeingexperimenteduponchangedsubjects’behavior.Theideaarosebecauseofthe__4____behaviorofthewomenintheHawthorneplant.Accordingto__5____oftheexperimentstheirhourlyoutputrosewhenlightingwasincreasedbutalsowhenitwasdimmed.Itdidnot__6____whatwasdoneintheexperiment;___7_sometingwaschangedproductivityrose.An___8___thattheywerebeingexperimenteduponseemedtobe____9___toalterworkers’behavior____10____itself.Afterseveraldecadesthesamedatawere_11__toeconometrictheanalysis.Hawthorneexperimentshasanothersurprisestore_12__thedescriptionsonrecordnosystematic_13__wasfoundthatlevelsofproductivitywererelatedtochangesinlighting.Itturnsoutthatpeculiarwayofconductingtheexperimentsmaybehaveletto__14__interpretationofwhathapped.__15___lightingwasalwayschangedonaSunday.WhenworkstartedagainonMondayoutput__16___rosecomparedwiththepreviousSaturdayand__17__toriseforthenextcoupleofdays.__18__acomparisonwithdataforweekswhentherewasnoexperimentationshowedthatoutputalwayswentuponMondayworkers__19__tobediligentforthefirstfewdaysoftheweekinanycasebefore__20__aplateauandthenslackeningoff.Thissuggeststhatthealleged“Hawthorneeffect”ishardtopindown. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.10
在葡萄糖刺激时非胰岛素依赖型糖尿病病人的胰岛素水平
单纯疱疹病毒反复感染
热门题库
更多
国家统考科目
香港法概论
反间谍法
__学
合同法
证据学
民事诉讼法学
民法学
刑法学
消费者权益保护法
法理学
竞争法
国际公法
国际经济法
农村政策法规
行政法与行政诉讼法
湘公网安备 43130202000226号