热门试题:
[单选题]《生产安全事故报告和调查处理条例》规定,一般事故由()。
A.国务院或国务院授权有关部门组织事故调查组进行调查。
B.事故发生地升级人民政府负责调查
C.事故发生地设区的市级人民政府
D.事故发生地县级人民政府
[简答题]关于隔离开关机械连锁的说法，正确的是( )。
[单选题]“一切以条件、地点和事件为转移”,这是( )
A. 取消了人的主观能动性的观点
B. 夸大了客观条件作用的观点
C. 机械唯物论的观点
D. 唯物辩证法关于普遍联系的观点
[单选题]较大事故和一般事故由（ ）组织事故调查组进行调查。
A.国务院或国务院授权的部门
B.铁道部
C.事故发生地安全监管办
D.公安机关
[不定项选择题]高血压合并支气管哮喘者不宜选用
A.利血平
B.卡托普利
C.普萘洛尔
D.缬沙坦
E.氢氯噻嗪
[单选题]当前工种:用电监察员（用电检查员）
工种定义:从事与电力客户相关的业扩报装全过程管控、巡视检查、安全用电管理、变更用电、故障抢修、违约窃电查处、电力保障、新能源新技术推广、政策宣传等优质服务的人员。
客户电能计量装置发生故障的，选择使用（）流程。
A.违约用电；
B.验表；
C.计量装置故障处理；
D.退补电量电费。
[单选题]进站时既需办理签证，又需剪口的乘车证是（ ）。
A.临时定期乘车证
B.硬席乘车证
C.通学乘车证
D.便乘证
[单项选择]各类休克的共同点是（）。
A. 血压下降
B. 中心静脉压下降
C. 脉压减小
D. 尿量减少
E. 有效循环量减少
[多项选择]胸片示右上纵隔增宽可考虑（）.
A. 胸腺瘤
B. 畸胎瘤
C. 肺癌
D. 支气管囊肿
E. 胸内甲状腺肿
[单选题]临时旅客列车列车运行线表示方法是（）。
A.红单线加红双杠
B.红单线加红方框
C.红单线加红箭头
D.红单线加红“×”
[单选题]存款人应向开户银行提出撤销银行结算账户申请的法定情形，不包括。
A.被撤并、解散、宣告破产或关闭的
B.注销、被吊销营业执照的
C.因迁址需要变更开户银行的
D.更换法定代表人或主要负责人的
[简答题]在SQL的SELECT查询中，使用______关键词消除查询结果中的重复记录。
[单选题]危险化学品的生产、经营、储存单位，应急设置安全管理机构或者配备（ ）。人数应不少于企业员工总数的2%（不足50人的企业至少配备1人）。
A.工艺技术人员
B.设备技术人员
C.专职安全生产管理人员
D.注册安全工程师
[单项选择]某小区召开业主大会，会上物业管理处马主任现场解答业主的提问，其中符合法律规定的是（）。
A. 未经业主委员会同意，顶楼业主不得私自封闭屋顶天台
B. 经物业管理处同意，业主可在自家临街外墙设置广告牌
C. 未经业主委员会同意，开发商无权出售架空层内的车库
D. 经工商行政管理部门许可，业主可将自家住宅改为商店
[多选题]带电绝缘工具在运输过程中，应装在（ ）内。
A.专用工具袋
B.专用工具箱
C.专用工具车
D.专属固定位
[单选题]无机可燃物质不包括( )。
A. 氢气
B. 丙炔
C. 一氧化碳
[单选题]下列关于充值卡系统用户密码描述正确的是 ( )
A.密码应该符合内控要求长度不少于 8 位
B.密码必须由字母和数字混合组成
C.修改后的新密码不能与最近五次密码相同
D.以上都正确
[填空题]当压力空气送入制动缸时,将推动制动缸活塞移动,并通过（ ）的传递和放大,使闸瓦压迫车轮产生制动力。
[判断题]对称规划，指按照轴线特定的空间要求，对范围进行的区域性规划。
[单选题]近年来,中东地区局势持续动荡,恐怖主义、分离主义愈加 猖獗,教派矛盾不断升级。尤其是极端恐怖势力于 2014 年 6 月29 日宣布成立“伊斯兰国”(ISIS ),并宣称将建立地跨西亚北非的“哈里发帝国”,对该地区的秩序造成了重大冲击,并且给国家的全球战略带来了影响,这种影响表现为美国( )。
A.. “中东收缩”战略提上议程
B.“和平演变”战略归于失败
C..“北约东扩”战略被迫搁置
D.“重返亚太”战略受到牵制
[填空题]隧道洞口边、仰坡冲沟宜采用()等工程措施防排水。
[单项选择]整个转炉炉壳受力最大的部分是（）。
A. 炉帽
B. 炉身
C. 炉底
D. 出钢口
[多项选择]监理机构的组织形式大致可分为( )。
A. 直线型
B. 曲线型
C. 职能型
D. 职责型
E. 矩阵型
[判断题]水型灭火器主要用于扑救固体物质火灾。( )
A.正确
B.错误
[单项选择]Traditional superstitions and beliefs (31) disappear altogether; they assume new forms and (32) to contemporary conditions. (33) in the 21st century, people may dismiss their forefather’s customs and practices (34) superstition, many are still current. A Friday which falls on the 13th of a month is widely feared as (35) , and so are spilling salt and walking (36) a ladder. Belief (37) the power of mascots is far from (38) ；the lucky rabbit’s foot, like the horseshoe, is a popular charm. Certain foods, too, (39) their ancient lore. Many people, for example, accept the old adage "an apple a day keeps the doctor away". One aspect of traditional (40) which is still very much (41) today is folk medicine. When the causes of illness were totally (42) , and disease seemed to (43) without any reason, it was often (44) to evil spirits taking over the body. To (45) the patient, the demons
A. adopt
B. adapt
C. continue
D. go
[单选题] 牵动全省常态化打击整治工作的部门是( )
A. 厅刑侦局
B. 厅国保总队
C. 厅情报总队
D. 厅治安总队
[多选题]《行规》电动、手动脱轨器管理及作业规定中，下列说法正确的是（ ）。
A.电动、手动脱轨器使用后须保持定位
B.手摇时，须将脱轨器摇至非脱轨位置并加锁
C.调车指挥人必须亲自确认脱轨器位置正确后，方可指挥动车
D.手动脱轨器的定位和揭示办法以及调车作业的确认办法和联系制度等在《站细》内规定
[单选题]高速铁路路桥检查车间的管辖营业长度宜在300 km左右,且不超过400 km;路桥检查工区管辖营业长度100 km左右;山区路段宜适当缩小管辖长度。
A.正确
B.错误
[单选题]不得站在（）传递土石或放置传土工具；禁止由下部掏挖土层。
A.挡板上
B.撑木上
C.挡板、撑木上
D.脚手架上
[多选题]发生（ ）情况时，需要引起贷款人的警惕。
A.有关财务状况的预警信号
B.有关经营者的信号
C.有关经营状况的信号
D.有关个别消费者状况的信号
E.有关行业个别竞争对手的信号
[不定项选择题]共用题干
第一篇
Shift Work Link to Increased Risk of Heart Problems
Shift workers are slightly more at risk of having a heart attack or stroke than day workers,research suggests.
An analysis of studies involving more than 2 million workers in the British Medical Journal said shift
work can disrupt the body clock and have a negative effect on lifestyle.It has previously been linked to an
increased risk of high blood pressure and diabetes.
Limiting night shifts would help workers cope,experts said.
The team of researchers from Canada and Norway analyzed 34 studies.In total,there were 17,359
coronary events of some kind,including cardiac arrests,6,598 heart attacks and 1,854 strokes caused by
lack of blood to the brain.These events were more common in shift workers than in other people.
The BMJ study calculated that shift work was linked to a 23%increased risk of heart attack,24%
increased risk of coronary event and 5%increased risk of stroke.But they also said shift work was not linked
to increased mortality rates from heart problems and that the relative risks associated with heart problems
were"modest".
Dan Hackam,associate professor at Western University,London, Ontario in Canada,said shift workers
were more prone to sleeping and eating badly."Night shift workers are up all the time and they don't have
a defined rest period.They are in a state of perpetual nervous system activation which is bad for things like
obesity and cholesterol,"he said.
The authors say that screening programs could help identify and treat risk factors for shift workers,such
as high blood pressure and cholesterol levels.They add that shift workers could also be educated about what
symptoms to look out for,which might indicate early heart problems.
Jane White,research and information services manager at the Institution of Occupational Safety and
Health,said there were complex issues surrounding shift work."It can result in disturbed appetite and
digestion,reliance on sedatives and/or stimulants,as well as social and domestic problems."These can
affect performance,increase the likelihood of errors and accidents at work,and even have a negative effect
on health.She said the effects of shift work needed to be well managed.
"Avoiding permanent night shifts,limiting shifts to a maximum of 12 hours and ensuring workers have a
minimum of two full nights'sleep between day and night shifts are simple,practical solutions that can help
people to cope with shift work."
From Paragraph Six it can be inferred that_________.
A.shift workers have no good food to eat
B.shift workers don't know how to define rest period
C.a worker of high cholesterol level is likely to suffer more from shift work
D.shift workers have no place to sleep comfortably
[单项选择]关于脾中央破裂与真性脾破裂的超声鉴别诊断，以下哪项更支持后者（）。
A. 脾包膜下局限性积液的无回声
B. 脾实质内的强回声结节
C. 脾体积增大，包膜及实质均正常
D. 脾包膜和实质的不连续及脾周和腹内积血暗区
E. 脾包膜模糊不清而脾内及脾周无异常回声
[多项选择]随着我国信息技术的突飞猛进，基于网络的电子商务迅速发展。电子商务打破了地域区市，提供了丰富的商品和服务，加大了仓储、物流、支付等体系的建设，网上购物因此而迅猛增长。这表明（）。
A. 消费结构随经济发展而改善
B. 生产决定消费的方式和水平
C. 生产可以创造需求引导消费
D. 消费引导生产的调整和升级
[判断题]要使排尘效果最佳，必须使风速达到或接近最优排尘风速而不能超过。( )
A.正确
B.错误
[单项选择]患者经来量多，色淡质稀，或兼见面色光白，气短懒言，肢软无力，心悸怔忡，舌淡脉细弱，治法是：
A. 养血益气调经
B. 补气养心安神
C. 补气养血止血
D. 益气摄血固冲
E. 健脾益肾固冲
