热门试题:
[判断题]无缝道岔的观测桩，在间隔铁或限位器处设1对，在岔头、岔尾下各设1对。
[单项选择]源程序的文档化不包括( )。
A. 符号名的命名要有实际意义
B. 正确的文档形式
C. 良好的视觉组织
D. 正确的程序注释
[单项选择]一般情况下，测点位置选在社会生活噪声排放源边界( )。
A. 外0.5m、高度1.2m以上
B. 外0.5m、高度1.5m以上
C. 外1m、高度1.2m以上
D. 外1m、高度1.5m以上
[判断题]防霉技术的运用可根据产品和包装的性能及要求的不同，而采取不同的防霉途径和措施，可从使用的材料、产品和包装三个方面着手分别加以解决。( )
[单选题]《客运系统安全专业管理考核评价办法暨安全红线管理办法》中规定：考核周期为每（ )考核一次。
A.一个月
B.三个月
C.半年
D.一年
[单项选择]Fifty volunteers were alphabetically divided into two equal groups, Group A to participate in a 7 week exercise program, and Group B to avoid deliberate (故意的，蓄意的) exercise of any sort during those 7 weeks. On the day before the exercise program began, all 50 men participated in a step-test. This consisted of stepping up and down on a 16-inch bench at 30 steps a minute for 5 minutes. One minute after completion of the step-test, file pulse rate of each subject was taken and recorded. This served as the pretest for tile experiment. For the next 7 weeks, subjects in the experimental group (Group A) rode an Exercycle (a motor-driven bicycle-type exercise machine) for 15 minutes each day. The exercise schedule called for riders to ride relaxed during the first day’s ride, merely holding on to the handle bars and foot pedals as tile machine moved. Then, (or the next 3 days, they rode relaxed for 50 seconds of each minute, and pushed, pulled, anti pedaled actively for 10 seconds of each minut
A. not changed
B. gone down 28 beats per minute
C. gone down 30 beats per minute
D. gone down 4 beats per minute
[判断题]在货物线上进行装卸作业，须按规定安设带有脱轨器的红色防护信号牌(夜间及昼间能见度较低时，为红色信号灯)。
A.正确
B.错误
[单选题]失败码携带功能是在SIP信令中携带错误码。当网元主动产生错误时，会在主动产生失败响应消息中，插入（ ）头字段。
A.X-ZTE-Cause
B.X-Cause
C.X-IMS-Cause
D.IMS-Cause
[单选题]丰收借记卡在标有“银联”标识的自动取款机上取款，每卡每日取款累计总额不超过( )人民币或等值外币。
A.5000元
B.10000元
C.20000元
D.50000元
[判断题]按照《生产安全事故报告和调查处理条例》，重大事故，是指造成10人以上30人以下死亡，或者50人以上100人以下重伤，或者5000万元以上1亿元以下直接经济损失的事故。
A.正确
B.错误
[多选题]在( )可能发生变化的环境中作业应保持必要的测定次数或连续检测。
A.氧气浓度
B.有害气体
C.可燃性气体
D.粉尘的浓度
[单项选择]In previous generations, young people were under their parents’ control ; now the teenage children of the West’s richest generation were ready for something to get excited about. The Beatles simply put a spark to a fuse(导火线) that was waiting to be lit.
Everything changed, and what changed for the Beatles was their lives and their working habits, in the midst of the hysterical(歇斯底里的) following the band attracted. Because of the demand of the fans to see them perform, they played bigger and bigger venues (meeting-places) , especially in America. They played pop music’s first "stadium" concert—to 60,000 people in Shea Stadium.
But John, Paul, George and Ringo became increasingly unhappy that, because of the screaming of their fans, neither the band nor the audience could hear the music. Creatively frustrated and tired of the pressures of life under siege(围攻) from their fans, they retired from playing concerts in 1966 and decided to concentrate on recording.
It was
A. the Beatles had no appetite for fame
B. the audience were unhappy about the sound effect
C. pop musicians get easily tired as they are under great pressures of life
D. the screaming of the fans prevented the Beatles from performing happily and creatively
[填空题]变压器的外加电压（一次电压）一般不超过分接头额定值的（）。
[多选题]《用电检查管理办法》第九条规定：用电检查工作负责组织实施的工作包括（ ）。
A. 负责客户受（送）电装置工程电气图纸和有关资料的审查
B. 负责节约用电措施的推广应用
C. 负责安全用电知识宣传和普及教育工作
D. 参与对客户重大电气事故的调查
[判断题]临时使用绿色许可证，遇无调度命令，LKJ需输入调度命令号时，“调度命令号”栏输入99。
A.正确
B.错误
[多选题]刚性悬挂是指固定的导电体受流过程中在受电弓或集电靴的作用下基本不变形，由（ ）和与受电弓接触的接触面或接触线组成，一般用于隧道段。
A.支持体
B.绝缘子
C.汇流排
D.锚结
E.钢轨
[多项选择]国际法是一个与国内法不同的特殊法律体系，它的强制力是通过下列哪些方式实现的 ( )
A. 国际法院采取强制措施
B. 国际警察采取强制措施
C. 国家单独采取强制措施
D. 国家集体采取强制措施
[判断题]定时计数器1的工作方式有4种 正确错误
A.正确
B.错误
[判断题]准确度等级为S级电流互感器在5%至120%电流范围内都能正确计量。
A.正确
B.错误
[单选题]超声波在两种材料界面传递，如果第一个介质声阻抗较大，但声速与第二介质相同，则折射角（ ）。
A.大与入射角
B.小于入射角
C.与入射角相等
D.在临界角之外
[判断题]线路缺陷是指线路设备存有残损和隐患,如不及时处理将会影响安全运行。
A.正确
B.错误
[单项选择]现代信息全面改造了现代人才，现代信息的特征决定了人才具有以下特点，其中叙述有误的是：（）
A. 专业性
B. 稳定性
C. 社会性
D. 整体性
[简答题]小型空分设备级、氮排出阀的作用原理是什么？
[判断题]特高压电网具有输电能力强、输电损耗低的特点，适用于大容量、远距离输送电能，在跨大区远距离大规模输电的情况下，采用1000 kV 输电网络具有明显的经济优势。
A.正确
B.错误
[单项选择]近年来，人们对网络高等教育的品质信任度越来越高。据一项民意调查显示，某国37%的公民称他们同意网络高等教育能提供高质量的教育。相比2012年的33%和2011年的30%，这个数字有所提高。这表明，攻读大学学位的方式将出现一波新的重大变化。以下哪项如果为真，最能反驳上述结论（）
A. 该国近一半的商界领袖说他们会雇佣在网络高等教育获得学位的人到自己的公司工作
B. 私营企业对网络高等教育的毕业生的信任度越来越高
C. 目前，网络高等教育注册人数的增长速度比以往有所放缓
D. 该国77%的公民称传统高等教育能提供最高质量的教育
[判断题]电压互感器的容量是指其二次绕组允许接入的负载功率(以VA值表示),分额定容量和最大容量。
A.正确
B.错误
[单项选择]投标人应当按照招标文件的要求编制投标文件，投标文件应当对招标文件提出的实质性要求和条件作出( )
A. 回应
B. 响应
C. 回答
D. 回复
[多选题] 抢修分类(_____)(1.0分)
A.利用行车间隔抢修
B.中断行车抢修
C.紧急情况
D.特殊情况
E.正常情况
[填空题]
Vera Wang has become a significant figure in the American fashion industry in a relatively short period of time. She has no formal design training because her father wouldn’t let her go to art school and wanted her to concentrate on more “practical subjects”. After earning a degree in liberal arts, Vera worked as an editor at Vogue for 17 years and as a design director of Ralph Lauren for two years. In 1990 she opened her first boutique(时尚 精品店)on Madison Avenue in New York, in a less expensive line of ready-to-wear bridal and evening dresses. She chose bridal wear for she wanted to build a fashion company starting with one market and then expand into others. She became a household name in 1994 when she designed stylish costumes(时尚束装)for figure skater Nancy Kerrigan to wear in the Winter Olympics.
Vera Wang herself is a very good skater and she had Olympic dreams too. But that dream was crushed when she did not win at the National Figure Skating Champions
[单选题]毒物的物理性质对毒性有影响,下列哪一个不对( )。
A.可溶性
B.挥发度
C.密度
D.分散度
[单选题]巡视高压设备时，人体与220kV带电导体应保持不小于（）的安全距离。
A.0.5m
B.1.5m
C.3m
D.5m
[简答题]1 试简述主机1(IP地址为192.168.25.1,MAC地址为 E1)向主机2(IP地址为192.168.25.2,MAC地址为E2)发送数据时ARP 协议的工作过程(主机1、主机2在同一个子网内)。
[单选题]干式平波电抗器故障跳闸后的巡视内容：1.线圈匝间及支持部分无变形、损坏；2.回路内引线接点无发热现象；3.检查本体各部件无位移、变形、松动或损坏；4.外表涂层无变色，表面无膨胀、变形；4.支撑绝缘子无破损、裂缝及放电闪络痕迹；5.（ ）。
A.干式平波电抗器有无起火
B.避雷器外绝缘无破损，喷口无动作
C.干式平波电抗器外表有无积灰
D.避雷器泄露电流有无异常
[单选题]三显示自动闭塞区段，车站控制台第一、第二离去表示灯不着灯，办理发车进路后，出站信号机显示()。
A.红灯
B.黄灯
C.绿灯
D.白灯
