热门试题:
[单选题] 埋弧焊的电弧掩埋在颗粒状焊剂下面。 ( ) 【判断题】
A.正确
B.错误
[判断题]道不可坐论,德不能空谈。
A.正确
B.错误
[单选题]-A-B-024 5 2 3
关于点火前瓦斯管线吹扫的介质,下列选项正确的是( )。
A. 空气
B. 氮气
C. 低压蒸汽
D. 中压蒸汽
[单项选择]关于亚急性感染性心内膜炎，哪一项是错误的（ ）
A. 伴发于二尖瓣、主动脉瓣病变者多于肺动脉瓣和三尖瓣
B. 伴发于关闭不全病变者多于狭窄病变者
C. 伴发于晚期病变者多于早期病变者
D. 伴发于房颤者少于无房颤者
E. 伴发于有心功能不全者少于无心功能不全者
[单项选择]
Most towns up to Elizabethan times were smaller than a modern village and each of them was built around its weekly market where local produce was brought for sale and the town folks sold their work to the people from the countryside and provided them with refreshment for the day. Trade was virtually confined to that one day even in a town of a thousand or so people. On market days craftsmen put up their stalls in the open air whilst on one or two other days during the week the townsman would pack up his loaves, or nails, or cloth, and set out early to do a day’s trade in the market of an adjoining town where, however, he would be charged a heavy toll for the privilege and get a less favourable spot for his stand than the local craftsmen. Another chance for him to make a sale was to the congregation gathered for Sunday morning worship. Although no trade was allowed anywhere during the hours of the service (except at annual fair times), after church there would be some trade
A. sold all of their goods on market days
B. could sell their goods during Sunday morning services
C. coud do trades in neighbour towns freely
D. didn’t have chance to do trades everyday
[判断题]线路车间、重点维修车间应根据工务段下达的年、月维修计划和各项技术指标，编制月、周、日维修计划。
A.正确
B.错误
[单项选择]肾不纳气主要是由于（）。
A. 肾阳不足
B. 肾阴不足
C. 心气不足
D. 肾的精气不足
E. 膀胱气化不利
[单选题]《20kV 及以下配电网工程建设预算编制与计算规定(2016 年版)》适用于（ ）的新建和 扩建工程。
A.国家投资建设
B.国有资金投资建设
C.国家电网公司投资建设
D.各种投资渠道投资建设
[单选题]给油脂标准中，对手动加油的设备，一般可由（ ）来完成。
A.岗位操作工
B.专职点检员
C.检修人员
D.检测人员
[单项选择]下列不符合视力下降而眼底正常的眼病是（）
A. 视锥细胞变性
B. 球后视神经炎
C. 玻璃体积血
D. 癔症
E. 弱视
[单选题]进行空挡试验时，（ ）不得电。
A.受电弓
B.主变压器
C.牵引电动机
[单选题] 孟塞尔系统中一个位置代表( )。
A.唯一的一个颜色
B.二个颜色
C.三个颜色
[单项选择]工程勘察资质等级设立中，工程专业类勘察单位资质等级分为( )。
A. 甲级
B. 甲、乙级
C. 甲、乙、丙级
D. 甲、乙、丙级及丙级以下
[判断题]消防法律法规是指国家制定的有关消防管理的一切规范性文件的总称。包括消防法律、消防行政法规、地方性消防法规、消防行政规章和消防技术标准等。
A.正确
B.错误
[多选题]（ ）不办理遗失物品转送。
A.食品
B.规格或重量超过携带规定的物品
C.损坏车辆的物品
D.化工产品
[单项选择]Business and Social Responsibility
Today more and more people believe that business should play an active role in improving society and solving social problems. For example, we expect that businesses will take care not to pollute the air we breathe or the water we drink. We also expect them to offer fair wages and employee benefits and to provide a satisfactory product or service at a reasonable price. Many companies recognize this and have stated publicly that they will act as a good citizen. They support local arts, build parks, raise funds for charities, and try to put back some of their profits into the community that has made their success possible.
A good reason for businesses to be socially responsible is that society gives business organizations the right to exist. A social setting or environment, with its laws, customs, and other social and cultural norms, allows businesses to form and function. It is only right for businesses to participate in making the
A. society requires it.
B. social laws and customs demand it.
C. it owes its existence to society.
D. it is indebted to the community in which it operates.
[多项选择]我国股份有限公司分派股利的形式一般有（）。
A. 现金股利
B. 股票股利
C. 财产股利
D. 负债股利
E. 实物股利
[判断题]《安规》第3.3.2条，作业地段不宜过长，并不得指派单人到防护区段以外的线路上作业。
A.正确
B.错误
[判断题]“内发光”图层样式可使图层中的图像边缘以内产生发光的效果。
A.正确
B.错误
[判断题]P-GPS是GPS卫星信号良好，使用GPS模块实现精确悬停的一种飞行模式。
A.正确
B.错误
[单项选择]画正等轴测图的步骤是，先在投影图中画出物体的( )。
A. 直角坐标系
B. 坐标点
C. 轴测轴
D. 大致外形
[单选题]剪断废旧电缆前，应与电缆走向图纸核对相符，并确认电缆无电后方可作业。拆解盘、柜内二次电缆和剪断废旧电缆前，必须确定所拆电缆确实已退出运行，并有专人监护，（）不得擅离职守。
A.监护人
B.工作票许可人
C.工作票签发人
D.安全员
[单项选择]莱姆病早期皮肤损害时常选用的药物是（）
A. 红霉素
B. 阿莫西林
C. 青霉素
D. 头孢曲松
E. 阿奇霉素
[填空题]Earthquakes
66. At two minutes to noon in September 1 of 1923, the great clock in Tokyo stopped. 67. Tokyo Bay Shook as if huge rug had been pulled from under it. 68. Towered above the bay, the 4,000 meter Mount Fuji stood above a deep trench in the sea. 69. It was from this trench where the earthquake came, at a magnitude of 8. 3 on the Richter scale,
Huge waves swept over the city. 70. Boats were driven inland, and buildings and people were dragged out sea. 71. The tremors dislodged part of a hillside, which gave way, brushing trains, stations and bodies the water below. 72. Three massive shocks wrecked the of Tokyo and Yokohama and, during the next six hours, there were more than 100 aftershocks.
The casualties were enormous, but there were also some lucky survivors. 73. The most remarkably was a woman who was having a bath in her room at the Tokyo Grand Hotel. 74. As for the hotel collapsed, she and he
[判断题]使触电者脱离电源的方法有：拉、切、挑、拽、垫。
A.正确
B.错误
[单选题]试车线进行60km/h以上试验时，最晚须在（ ）处施加100%制动。
A.警冲标
B.200米标
C.制动标
D.300米标
[填空题]NJ2机车有4个进气百叶窗和（）出气百叶窗。
[单选题]属正系胆烷酸的是
A.胆酸
B.别胆酸
C.牛磺酸
D.粪甾烷酸
E.绿原酸
[单选题]A铜业公司是某大型企业的控股子公司,2009年,A铜业公司新建采用艾萨熔炼技术生产铜及硫酸的项目,项目于2009年1月开始建设,9月10日投产运行。项目主要工艺设备有艾萨熔炼炉、电炉、余热锅炉等。艾萨熔炼炉产生的高温烟气进入余热锅炉,经热交换后产生蒸汽,热交换后的烟气经除尘净化系统处理后排放。余热锅炉设计额定蒸汽压力2.5MPa、额定蒸发量35t/h、额定蒸汽温度350℃。2009年11月24日20时,当班调度甲听到一声巨响,随即在监控系统屏幕上看到余热锅炉房有大量蒸汽喷出。甲按照应急救援预案要求,立即拉响警报,通知紧急停炉和现场人员撤离,报告公司总经理乙。乙接报后,立即向上级有关部门报告,同时赶往现场指挥救援。21时,经人员清点,仍有5名职工下落不明,乙派2名工人进入现场查看情况,因现场蒸汽太大,2名工人被烫伤。于是紧急外调防护服,救援人员穿上防护服进入余热锅炉房,发现有4名职工死亡、1人重伤。事后查明,事故发生时余热锅炉的运行压力2.3MPa、蒸汽温度310℃,从熔炼炉到余热锅炉的冷却屏波纹金属软管爆裂,大量高温饱和蒸汽喷出,导致现场人员伤亡。此次事故的直接经济损失为420万元。请根据上述场景回答下列问题。该起事故的直接原因可能是()。
A.熔炼炉烟气温度过高
B.波纹金属软管质量不合格
C.熔炼炉高温烟气压力过高
[单项选择]I notified him that my address had changed.
A. informed
B. observed
C. mocked
D. misled
[判断题]（华为云）如果该安全组的入站规则是放通的，那无论出站规则如何，都将允许入站请求的响应流量可以出站。
A.正确
B.错误
[单项选择]智能变电站告警信息中变位信息描述正确的是（）。
A. 由于电网故障、设备故障等，引起开关跳闸（包含非人工操作的跳闸）、保护装置动作出口跳合闸的信号以及影响全站安全运行的其他信号
B. 反映设备运行异常情况的报警信号，影响设备遥控操作的信号，直接威胁电网运行和设备安全
C. 开关类设备状态（分、合闸）改变的信息，反映电网运行方式的改变
D. 反映重要遥测量超出报警上下限区间的信息
[名词解释]growth factor receptor-bound protein 2 (Grb2蛋白)
[单项选择]工业炉窑点火顺序是（）。
A. 先给煤气后点火
B. 先点火后给煤气
C. 边给煤气边点火
[多选题] 吸光度加和定律要求( )
A. 同一波长下
B. 对光有吸收的物质之间没有相互作用
C. 不同波长下
D. 对光有吸收的物质之间有相互作用
