热门试题:
[判断题]《铁路技术管理规程》（高速铁路部分）规定：因施工提前、延迟或其他原因造成运行揭示调度命令与实际限速、行车方式或设备不符时，列车调度员应取消前发运行揭示调度命令，向有关司机、车站值班员、施工负责人重新发布全部内容的调度命令；相符时仍按前发运行揭示调度命令执行。
A.正确
B.错误
[单选题]三大件式转向架下旁承调整垫板数量不少于（ ）。
A.1
B.3
C.4
D.5
[单选题]复合地基载荷正式试验前宜进行预压，预压荷载宜为最大试验荷载的( )，预压时间为5min。
A.5%
B.10%
C.15%
D.20%
[单选题]架空线路导线通过的()不应超过其允许电流。
A.额定电流
B.短路电流
C.最大负荷电流
[多项选择]几天的阳光在柳条上撒下的一抹嫩绿，被尘土掩埋得有些憔悴色了，是需要一次洗涤。还有干裂的大地和树根也早已期待着雨。雨却迟疑着。
我怀想着故乡的雷声和雨声。那隆隆的有力的搏击，从山谷反响到山谷，仿佛春之芽就从冻土里震动，惊醒，而怒茁出来。细草样柔的雨丝又以温存之手抚摸它；使它簇生油绿的枝叶而开出红色的花．这些如乡愁一样萦绕的怀想使我忧郁了。
[多选题]车载消防泵运行声音异常或震动原因有可能是( )
A.固定螺丝松动
B. 水罐缺水
C. 水泵空转
D. 水泵水太多
[单项选择]女性，48岁。有高血压病史及冠心病家族史，反复前胸刺痛多年，对确诊最有意义的检查手段是：
A. 动态心电图
B. 放射性核素
C. 超声心动图
D. 冠状动脉造影
E. 运动负荷试验
[单项选择]不属于课堂要素的是（ ）。
A. 学生
B. 学习过程
C. 学习情境
D. 学习信号
[单选题]列车退行时，监控装置进入（）模式，不需要进行换端操作。
A.调车
B.降级
C.非本务
[简答题] As social science research data and government surveys increasingly show, the decline in marriage since the 1960s has been (47)______ by a rise in a number of serious social problems. Children born (48)______ or whose parents divorce are much more likely to experience poverty, abuse, and behavioral and emotional problems, have lower academic achievement, and use drugs more often. Single mothers are much more likely to be victims of (49)______ violence. With the rise in these problems comes high program costs to deal with the effects of the (50)______ of marriage.
For children whose parents remain married, however, the benefits are real. (51)______ from these families have been found to have better health and are less likely to be depressed, are less likely to (52)______ a grade in school, and have fewer developmental problems. The (53)______ of such mounting evidence for social policy are immense. Too many welfare programs continue to undermine marriage among the poor and must
[单选题](单选题)妊娠期间服用,可造成胎儿牙齿、骨骼发育异常的是( )
A.氯霉素
B.地西泮
C.磺胺甲略唑
D.环磷酰胺
E.多西环素
[多选题]管渠状况检查可分为功能状况检查和结构状况检查，结构状况包括管渠脱节、变形、( )、错位、渗漏、腐蚀、胶圈脱落、破裂与( )、( )倒坡、塌陷、( )
A.支管暗接
B.空洞
C.异物侵入
D.异管穿入等
[单选题]为保证人身安全，除专业人员执行有关规定外，其他人员（包括所携带的物件）与牵引供电设备带电部分的距离，不得小于( ) mm。
A.1000
B.1500
C.2000
D.4000
[单项选择]下列哪项CT技术，对肾盏旁囊肿的诊断与鉴别诊断有重要价值（）
A. 薄层扫描
B. 窄窗技术
C. 冠状面重建图像
D. 螺旋扫描
E. 增强扫描
[判断题]选择预约发卡时，允许代理人办理。
A.正确
B.错误
[单选题]下列()不是钢轨折断标准
A.钢轨全截面断裂
B.钢轨顶面上有长度大于20mm的掉块
C.裂纹贯通整个轨头截面
D.裂纹贯通整个轨底截面
[填空题]The idea "happiness", to be sure, will not sit still for easy (36) : the best one can do is to try to set some (37) to the idea and then work in (38) the middle. To think of happiness as acquisitive and (39) will do to set the (40) extremes. To think of it as the idea one senses in, say, a (41) man of India will do to set the spiritual extreme. That holy man’s idea of happiness is in needing nothing from outside himself. In wanting nothing, he (42) nothing. He sits immobile, (43) in contemplation, free even of his own body. Or nearly free of it. If devout admirers bring him food he eats it; if not, he starves indifferently. Why be concerned (44) . Contemplation is his joy and he achieves it through a fantastically demanding discipline, (45) .
Is he a happy man Perhaps his happiness is only another sort of illusion. But who can take it from him And who will dare say
[判断题]长期投资决策中的初始现金流量只包括固定资产上的投资。
[单选题]SS4型电力机车主变压器的励磁绕组在机车（ ）工况下，才投入工作。
A.牵引
B.电制动
C.运行
D.非运行
[填空题]The young man was a French{{U}} (36) {{/U}}, the son of one of the richest and most important{{U}} (37) {{/U}}of France. He had heard about the revolution taking place in America. He wanted to go and help.
He was only eighteen years old. He was tall, handsome, and a familiar{{U}} (38) {{/U}}in the high society of Paris. His family tried to stop him. They asked the King of France to throw him into jail in order to stop him, but the young nobleman had al ready{{U}} (39) {{/U}}his own ship and{{U}} (40) {{/U}}some young friends to go with him. He{{U}} (41) {{/U}}and came to America. The young man was the Marquis de Lafayette.
Upon his arrival, he{{U}} (42) {{/U}}that no one knew him here. He had been{{U}} (43) {{/U}}that he would be an officer in the American army,{{U}} (44) {{/U}}. He could not go back to France. Instead, he offered to serve as a volunteer -- without pay. Congress accepted. Later Lafayette met Washington.{{U}} (45) {{/U}}.Lafayette became Wash
[单项选择]男性，26岁，失足掉入河中溺水，经现场急救后来诊。查体：T36.0℃，P120次／分，R30次／分，BP90/60mmHg，患者神志清楚，无明显外伤。心电图示窦性心律。血氧饱和度监测示Sa083%。该患者最应当采用的治疗措施为（）
A. 静脉点滴碳酸氢钠
B. 面罩吸氧
C. 持续气道正压通气（CPAP）
D. 气管插管，吸出肺内残存水，并给予吸氧
E. 静脉点滴地塞米松
[单项选择]普查的优点是
A. 适合患病率较低疾病的调查
B. 调查的精确性高，不容易出现漏查
C. 可以很快获得疾病的发病率资料
D. 确定调查对象比较简单
E. 统一的调查技术可以有效保证调查质量
[单选题]KYN28-10型高压开关柜采用电缆出线时,如需要装设零序电流互感器,零序电流互感器一般装设在( )。
A.主母线室
B.吊装在电缆室内
C.吊装在电缆室柜底板外部
[简答题]简述中心式多角化策略与复合式多角化策略的差异。
[单选题]在检查火灾探测器时,火灾探测器表面应无影响探测功能的障碍物,如感温原件表面涂覆涂料,点型感烟探测器烟气通道被涂料、胶带纸、防尘罩等堵塞( )
A.正确
B.错误
[单选题]乙型溶血性链球菌分组的依据是
A.溶血的轻重程度
B.细胞壁上所含的多糖类C抗原
C.细胞壁外层中所含的M蛋白抗原
D.链球菌的形态特征
E.链球菌的致病性
[单选题]高速铁路桥梁在地震设防地段梁端或墩台顶设置( )。
A.防落梁挡块
B.槽钢
C.角钢
D.混凝土挡块
[多选题]工作许可人应将工作票的( )及终结时间记入登记簿。
A.编号
B.许可时间
C.工作任务
D.工作班成员姓名
[单选题]加压粘贴式堵漏工具用于各种管道、容器的法兰垫、盘根、管壁、罐体、阀门等部位的点状、线状和蜂窝状泄漏时堵漏。各种工具配套使用可形成八个组套,即1-8号工具,1号工具为( )。
A. 阀体堵漏器
B.带式加压堵漏器
C.移动法兰顶压器
D.活动法兰顶压器
[单选题]急性胃肠穿孔具有的特征性体征是( )
A.腹部压痛
B.发热
C.肝浊音界消失代之以鼓音
D.振水音阳性
E.移动性浊音阳性
[单选题]当场作出行政处罚决定时,下列能够作为处罚主体的是( )。
A.某市烟草专卖局开发区分局
B.某市烟草专卖局城区管理所
C.某县烟草专卖局
D.某市烟草专卖局执法人员
[单选题]金属氧化锌避雷器特点有动作迅速、( )、残压低、通流量大。
A.无续流
B.能耗低
C.续流小
[单项选择]传染期的概念是（）
A. 最长潜伏期与最短潜伏期之间的时间
B. 从感染病原体到出现临床症状的时期
C. 病人能排出病原体的整个时间
D. 从临床症状出现到病原体不再排出的时间
E. 从典型临床症状开始出现一直到完全消失的时间
[判断题]二次系统上的工作，在全部或部分带电的运行屏（柜）上进行工作时，应将检修设备与运行设备以明显的标志隔开。
A.正确
B.错误
[简答题]F2型调谐单元是由一个电感和（ ）组成的三元件电路。
[单选题] 下列关于使用警棍的说法不正确的是()。
A. 必须经过警告才使用
B. 可以不经过警告直接使用
C. 应当以制止违法犯罪行为为限度
D. 当违法犯罪行为得到制止时,应当立即停止使用
[多选题]监控人员应通过集控站监控系统，实时监视主设备告警、跳闸信息，定期检查设备遥信、遥测信息，开展设备遥控、遥调。具体应包含以下内容：
A.监视所辖变电站设备在线监测、在线智能巡视系统告警和趋势等信息。
B.逐步实现一键顺控、远方投退软压板、信号复归等远方操作。
C.监视所辖变电站主设备的事故、异常、越限、变位等信息。
D.监视所辖变电站运行工况，检查设备有功、无功、电压、电流、变压器（电抗器）温度等信息。
