热门试题:
[多选题]断路器是GIS的核心元件,由( )组成。
A.灭弧室
B.操作机构
C.支架
D.支持绝缘子
[多项选择]机房各主要出入口都要安装()。
A. 视频监控系统
B. 防盗报警系统
C. 门禁系统
D. 其它
[单选题]区别7,8-呋喃香豆素和6,7-呋喃香豆素的反应为
A.醋酐-浓硫酸反应
B.三氯化铁反应
C.Emerson反应
D.Molish反应
E.茚三酮反应
[判断题]发动机的柴油油轨压力在任何转速下都必须保持一致。
A.正确
B.错误
[单选题]驻地宜设在()变电站,原则上省检修公司运维班工作半径不宜大于90公里或超过90分钟车程,地市公司运维班工作半径不宜大于60公里或超过60分钟车程。
A. A.重要枢纽
B.B.重要中心
C.C.一类
D.D.二类
[判断题]通过金融手段来融资最常见的是通过发行股票及证券交易筹集建设资金。
[填空题]人本主义心理学思潮对学校教育的影响,一是表现在学校教育教学方面的变化,二是表现在()。
[判断题]鸣笛二短声是缓解及溜放信号。(技规)
A.正确
B.错误
[多选题]jzsy.建筑物倒塌事故处置中,救生排险的主要措施有()。
A.迅速清除现场障碍,确保现场拥有一个急救平台和供救援车辆出入的通道
B.立即疏散建筑结构受到影响,有可能倒塌的建筑物内人员
C.协助供水、供电、供气部门切断倒塌建筑的水、电、气供应
D.对现场有可能再次发生倒塌的建筑物要采取加固或事先拆除等措施
E.使用开花或喷雾水枪扑灭事故次生火灾
[判断题]合金的烘温度一般为800~900℃。( )
A.正确
B.错误
[多选题]根据《国家电网有限公司基建安全管理规定》,下列关于安全监理师职责说法正确的是()。
A.编制监理项目部安全管理制度
B.审查人员管理系统中专职安全管理人员、特种作业人员的上岗资格
C.审查施工项目部风险清册
D.审核安全文明施工设施进场验收单
[单选题]与蛋白质载体结合后才具有免疫原性的物质是( )
A.完全抗原
B.TD抗原
C.TI抗原
D.半抗原
[填空题]在封锁时间(天窗点)内进行隧道作业,除按规定防护外,还应编好作业组,进出隧道由小组负责人<--NRC-->。
[判断题]实时掌握暴风、台风(飓风)等热带气旋或龙卷风的中心位置、风速风力、中心气压、风圈直径、发展趋势等信息是消防救援队伍风灾处置预警准备的Ⅲ级准备内容
A.正确
B.错误
[单项选择]世界上第一个社会主义国家是()
A. 巴黎公社
B. 苏维埃俄国
C. 中华人民共和国
D. 巴伐利亚苏维埃共和国
[单项选择]
A. single
B. sole
C. specialized
D. specific
[判断题]电气化铁路区段声屏障、风屏障、栅栏等应可靠接地。(电气安全规则6.31) (1分)
A.正确
B.错误
[多选题]‡年5月4日,祁韶特高压直流输电线路年检期间,专业承包单位在进行杆塔耐张线夹X光无损探伤检测作业后,作业人员在撤离移动时,在没有系好安全带板带的情况下擅自解开二道保护安全绳,发生坠落死亡。该事故暴露的问题有( )。
A.
A.风险隐患排查整治不深入
B.B.对安全生产部署和工作要求贯彻不力、落实不细
C.C.缺乏对专业承包项目安全实施的有效管控
D.D.即时报告制度执行不严肃等问题
[判断题]所有工作人员(不包括工作负责人和值班员),不得单独留在高压室内和室外变电所高压设备区内。
A.正确
B.错误
[单选题](28246)齿轮安装中心距误差不仅影响齿轮的接触位置,而且影响( )。(1.0分)
A.齿侧间隙
B.接触面积
C.传动比
D.传动效率
[单项选择] Your network includes the servers shown in the following table. Server n ame Operating s ystem Role s ervices S erver 1 Windows Server 2008 R2 Standard RDS Licensing S erver 2 Windows Server 2008 R2 Enterprise Remote Desktop Server3 Windows Server 2008 R2 Enterprise Remote Desktop Per-device Remote Desktop Services client access licenses (RDS CALs) are installed on Server1. After you refresh a group of client computers with Windows 7, users on those computers can no longer connect to Server2. You need to ensure that the users can connect to remote applications. What should you do?()
A. From the affected client computers, initiate a Remote Desktop connection to Server1.
B. From the affected client computers, initiate a Remote Desktop connection to Server3.
C. On the affected client computers, open port 3389 on the Windows Firewall.
D. On Server1, revoke the RDS device CALs of the affected client computers.
[多项选择]关于热痉挛正确的是()
A. 高热
B. 肌痉挛
C. 肌痛
D. 神志不清
E. 实验室检查见低钠、低氯
[单选题]电阻和电容串联的单相交流电路中的有功功率计算公式是( )。
A.P=UI
B.P=UIcosφ
C.P=UIsinφ
D.P=Ssinφ
[判断题]卸料平台上的操作人员不应超过4人。
A.正确
B.错误
[单选题]周先生,40岁。患十二指肠溃疡5年。近2日来,每日解成形黑便1次,量约50g。最佳处理为
A.流质饮食,静脉滴注雷尼替丁、输液
B.输液、冰盐水洗胃、口服制酸剂
C.手术治疗
D.软食、输血、注射酚碘乙胺(止血敏)
E.立即输血
[单选题]( )人员或单位必须依法参加工伤社会保险。
A.劳动者
B.各级政府
C.用人单位
D.施工管理人员
[单选题]剥离绝缘导线的绝缘层、半导体层应使用专用切削工具,不得损伤导线,切口处绝缘层与线芯宜有( )倒角。
A.30°
B.35°
C.45°
D.50°
[判断题]如维修作业时间内,接触网不需要停电且无作业车配合的情况下,车站值班员必须在确认所有设备管理单位均销记并签认,向列车调度员报告后,方可接发列车。
A.正确
B.错误
[单项选择]得到电压或电流信号以后,经过一定时间再动作的继电器称为()。
A. 时间继电器
B. 电压继电器
C. 电流继电器
D. 中间继电器
[单选题]请阅读Passage l,完成第小题。
Passage 1
Move over Methuselah. Future generations could be living well into their second century and still doing Sudoku, if life expectancy predictions are true. Increasing by two years every decade,they show no signs of flattening out. Average lifespan worldwide is already double what it was 200 years ago. Since the 1980s, experts thought the increase in life expectancy would slow down and then stop, but forecasters have repeatedly been proved wrong.
The reason behind the steady rise in life expectancy is "the decline in the death rate of the elderly", says Professor Tom Kirkwood from Newcastle University. He maintains that our bodies are evolving to maintain and repair themselves better and our genes are investing in this process to put off the damage which will eventually lead to death. As a result, there is no ceiling imposed by the realities of the ageing process. "There is no use-by-date when we age. Ageing is not a fixed biological process," Tom says.
A large study of people aged 85 and over carried out by Professor Kirkwood discovered that there were a remarkable number of people enjoying good health and independence in their late 80s and beyond. With people reaching old age in better shape, it is safe to assume that this is all due to better eating habits, living conditions, education and medicine.
There are still many people who suffer from major health problems, but modern medicine means doctors are better at managing long-term health conditions like diabetes, high blood pressure and heart disease. "We are reaching old age with less accumulative damage than previous generations. We are less damaged," says Professor Kirkwood. Our softer lives and the improvements in nutrition and healthcare have had a direct impact on longevity.
Nearly one-in-five people currently in the UK will live to see their 100th birthday, the Office for National Statistics predicted last year. Life expectancy at birth has continued to increase in the UK--from 73.4 years for the period 1991 to 1993 to 77.85 years for 2007 to 2009. A report in Science from 2002 which looked at life expectancy patterns in different countries since 1840 concluded that there was no sign of a natural limit to life.
Researchers Jim Oeppen and Dr. James Vaupel found that people in the country with the highest life expectancy would live to an average age of 100 in about six decades. But they stopped short of predicting anything more.
"This is far from eternity: modest annual increments in life expectancy will never lead to immortality," the researchers said.
We do not seem to be approaching anything like the limits of life expectancy, says Professor David Leon from the London School of Hygiene and Tropical Medicine. "There has been no flattening out of the best of the best--the groups which everyone knows have good life expectancy and low mortality," he says.
These groups, which tend to be in the higher social and economic groups in society, can live for several years longer than people in lower social groups, prompting calls for an end to inequalities within societies.
Within populations, genes also have an important role to play in determining how long we could survive for--but environment is still the most important factor.
It is no surprise that healthy-living societies like Japan have the highest life expectancies in the world. But it would still be incredible to think that life expectancy could go on rising forever. "I would bet there will be further increases in life expectancy and then it will probably begin to slow," says Tom, "but we just don't know."
The underlined phrase "low mortality" in Paragraph 8 could best be replaced by“__________ ”.
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A.short life span
B.low death rate
C.low illness rate
D.good health condition
[单选题]警告标志形状为( )。 ( )
A.圆形
B.长方形和正方形
C.顶角朝上的等边三角形
[多项选择]证券投资基金的参与主体主要是基金发起人、基金管理人、( )。
A. 基金托管人
B. 基金销售人
C. 基金份额持有人
D. 基金使用人
E. 基金会
[多选题]国产HXD1型机车供电系统技术参数单相交流25kV,()Hz
A.25 kV
B.50 Hz
C.12 kV
D.12 Hz
[单选题](0.8分)
男性,57岁。足刺伤8日,头痛、乏力、张口困难及颈项强直,伤口红肿。临床诊断为
A.气性坏疽
B.狂犬病
C.破伤风
D.脑膜炎
E.颞下颌关节炎
[填空题]软件是计算机系统中与硬件相互依存的另一部分,它是包括()、()及其()完整集合。其中,()是按事先设汁的功能和性能要求执行的指令序列,()是使程序能够正确操纵信息的数据结构,()是与程序开发、维护和使用有关的图文资料.