热门试题:
[单选题]列车对已下车旅客的遗失物品应编制客运记录,注明品名、件数等移交( )。
A.下车站
B.终点站
C.前方站
D.中转站
[填空题]几个电阻并联时,每个电阻两端所承受电压(),电路的总电流等于各电阻支路电流之和。
[多项选择]域名服务器软件bind提供的组件包括()。
A. DNS(域名系统)
B. 域名系统服务器(named)
C. 域名系统解析库
D. 域名系统服务器调试工具
[单选题]下列ZDJ9转辙机内部组成不需要涂油的是()
A.接线端子
B.滚珠丝杆
C.锁块
D.动作杆
[单选题]桔梗皂苷静脉注射可引起的主要不良反应是
A.中枢兴奋作用
B.溶血
C.胃溃疡
D.高血脂
E.呼吸抑制
[判断题]刀具寿命的确定有两个原则,即经济寿命和最大生产率寿命。 ( )
A.正确
B.错误
[填空题]三显示自动闭塞区段,出站色灯信号机显示一个绿色灯光,准许列车由车站出发,表示运行前方至少有( )闭塞分区空闲。
[填空题]直流传动机车定期检修的修程分为大修中修小修和( )。
[判断题]常见的盖层有泥岩.页岩.盐岩.石育等。( )
A.正确
B.错误
[单选题]19世纪60年代到90年代,清朝统治阶级内部的洋务派兴办近代企业,建立新式海陆军,创办新式学校,派遣留学生。洋务派兴办洋务新政的主要目的是( )。
A.迎合帝国主义
B.维护封建统治
C.对抗顽固派
D.发展资本主义
[多选题]摘下的马蜂窝、虫巢等应在合适安全的位置(),转移掩埋
A.用火焚烧
B.水淹
C.用蛇皮袋等牢固包装材料密闭包装
D.喂养
[单选题]电气二次设备,包括控制、保护、通信、远动、自动化、直流电源及不停电电源等装置,其主体部件使用寿命达到( )。电气二次设备的主体部件包括主电路板、核心元件等。
A.20年
B.30年
C.40年
D.50年
[单项选择]I had been a university student for three years, but not until this afternoon had I felt the thrill of ______.
A. confusion
B. disappointment
C. sensation
D. fulfillment
[判断题]某检修单位进行带电显示装置检查工作。工作班成员未在工作票上确认签名,随即开始工作。检查发现高压带电显示装置控制器元件存在缺陷且无法消除,决定结束工作,工作负责人去办理工作票终结手续期间,工作班成员单独返回工作现场检查另一回路带电显示装置,在无人监护的情况下,移开安全围栏,误碰端子排端子造成跳闸。
该起事故存在违章行为:工作班成员检查另一回路带电显示装置,移开安全围栏。违反《安规》关于“工作人员不应擅自移动或拆除遮栏、标示牌”之规定。
A.正确
B.错误
[判断题]如果变压器的功率因数一定,在负载较小时,变压器效率随负载系数的增加而上升。
A.正确
B.错误
[判断题]电流互感器额定二次负荷的功率因数应为0.8〜1.0;电压互感器额定二次负荷的功率因数应与实际二次负荷的功率因数接近。
A.正确
B.错误
[判断题]电流对人体伤害的严重程度同通过人体电流的大小、通过时间的长短、电流的频率、人体的部位、健康状况有关。( 通密度的单位名称)
A.正确
B.错误
[判断题]高温(空)、露天作业人员进入暑前应进行 健康检查 ,凡有禁忌症均不宜从事 高温工作 。
A.正确
B.错误
[判断题]转辙装置整治以及道床电阻不良的轨道区段整治不属于信号工区要求工务配合的项目。
[判断题]时间同步网正常工作情况下,卫星接收机应同时跟踪不少于3颗卫星。( )
A.正确
B.错误
[判断题]钻孔时不准戴手套及使用棉纱,以免发生事故。
[单项选择]A study of art history might be a good way to learn more about a culture than is possible to learn in general history classes. Most typical history courses concentrate on politics, economics, and war. But art history focuses on much more than this because art reflects not only the political values of a people, but also religious beliefs, emotions, and psychology. In addition, information about the daily activities of our ancestors—or of people very different from our own—can be provided by art. In short, art expresses the essential qualities of a time and a place, and a study of it clearly offers us a deeper understanding than can be found in most history books. In history books, objective information about the political life of a country is presented; that is, facts about politics are given, but opinions are not expressed. Art, on the other hand, is subjective: it reflects emotions and opinions. The great Spanish painter Francisco Goya was perhaps the first truly "political" artist. In his well-known painting The Third of May, 1808, he criticized the Spanish government for its misuse of power over people. Over a hundred years later, symbolic images were used in Pablo Picasso"s Guernica to express the horror of war. Meanwhile, on another continent, the powerful paintings of Diego Rivera, Jose Clemente Orozco, and David Alfaro Siqueiros-as well as the works of Alfredo Ramos Martinez-depicted these Mexican artists" deep anger and sadness about social problems. In the same way, art can reflect a culture"s religious beliefs. For hundreds of years in Europe, religious art was almost the only type of art that existed. Churches and other religious buildings were filled with paintings that depicted people and stories from the Bible. Al though most people couldn"t read, they could still understand biblical stories in the pictures on church walls. By contrast, one of the main characteristics of art in the Middle East was (and still is) its absence of human and animal images. This reflects the Islamic belief that statues are unholy.Which of the following statements is true according to the passage
A. Unlike Francisco Goya, Pablo Picasso and several Mexican artists expressed their political opinions in their paintings.
B. History books often reveal the compliers" political views.
C. Religious art remained in Europe for centuries the only type of art because most people regarded the Bible as the Holy Book.
D. In the Middle East even today you can hardly find any human and animal figures on palaces or other buildings.
[单项选择]该患者立即采取的治疗措施是
A. 应用支气管扩张药
B. 补液
C. 低流量吸氧
D. 应用降压药
E. 应用抗生素
[多选题]持用<___>,在正式或临时营业铁路上准乘各种旅客列车<国际列车除外>( )
A.全年定期乘车证
B.临时定期乘车证
C.软席乘车证
D.硬席乘车证
[填空题]《上海通信段安全管理实施细则》规定的<--NRC-->是指针对施工及其他存在高风险的作业,履行对标检查、纠错等把关人员的相关职责。
[单选题] 正弦交流电路中的总电压,总电流的最大值分别为Um和Im,则视在功率为( )。
A.UmIm
B.1/√2UmIm
C.UmIm/2
D.√2UmIm
[单项选择]肺结核
A. 节律性上腹疼痛
B. 转移性疼痛
C. 上腹饱胀
D. 压榨性疼痛
E. 上腹部疼痛伴窒息感
[简答题]某电梯安装工程项目,由于电梯工程在高且深的井道内作业,每层在层门安装前留下较大的门洞,这对作业人员或其他闲杂人员存在高空坠落的危险,针对这一情况,施工项目经理部对从事影响工程产品质量的所有人员进行了控制。
施工项目经理部对该电梯工程的施工程序和施工安全技术措施的制订如下:
(1)机房通向井道的预留孔随时开通以方便施工。
(2)井道安装好导轨后放基准线进行配管配线。
(3)层门洞靠井道壁外侧设置坚固的围封,围封的高度不小于0.8m。
(4)由制造厂组装完成经调试合格后加以封记的机电协调动作部件在施工时应拆封调整后安装。
(5)电梯安装单位安装完毕自检试运行结束后,由监理单位负责进行校验和调试。
(6)电梯经校验和调试符合要求后,向当地特种设备安全监督部门报验要求监督检验。
问题
施工项目经理部对施工人员主要从哪些环节进行控制
[填空题]钢的导热系数会随温度而变化,一般是随温度升高而()。
[单选题]齐步行进时,左脚向前方迈出约( )厘米,按照先脚跟后脚掌的顺序着地,同时身体重心前移,右脚照此法动作
A.A、60
B.B、75
C.C、80
D.D、85
[填空题]评判性思维由智力因素、认知技能因素和()三个方面组成。
[单选题]包用客车、公务车、专用列车、豪华列车时,应预先支付相当于运费()的定金。
A.20%
B.25%
C.30%
D.50%
[单选题]螺纹按用途可分为联动、( )、传动3种。
A.固定
B.承载
C.密封
D.传递
[单选题]轨道车鸣示紧急停车信号的鸣笛方式为( )。
A.一短声
B.二短声
C.三短声
D.连续短声
[判断题]无线调车灯显设备显示绿灯闪数次后熄灭——起动信号。
A.正确
B.错误