热门试题:
[单选题]在听完一位成功的企业家讲课后,一些来自企业的学员感到有些失望,便问他:“你讲的那些内容我们也差不多知道,可为什么我们之间的差距会那么大呢? ”这位企业家回答说,“是因为你们仅是知道,而我却做到了,这就是我们的差别。”这句话表明了实践高于理论认识,因为实践具有( )。
A.普遍有效性
B.客观规律性
C.主体能动性
D.直接现实性
[单选题] 跨越施工前,( )应安装完毕且与杆塔可靠连接。 (1.0分)
A. 避雷装置
B. 接地装置
C. 防坠装置
D. 警示标志
[单选题]某用电单位月用电量有功为500MWh,无功为400MVarh,月利用小时为500h,若将功率因数提高到0.9时,则需要安装电容器的容量为(____)kVar。
A. 308
B. 318
C. 386
D. 398
[多选题]建筑施工企业取得安全生产许可证,应当具备下列哪些安全生产条件( )?
A.建立、健全安全生产责任制
B.设置安全生产管理机构
C.管理人员和从业人员每两年进行一次安全生产教育培训并考核合格
D.有职业危害防治措施
E.有生产安全事故应急救援预案
[判断题]正在发生的面积超过500平方米,时间超过1个小时的火灾,应在第一时间向支队指挥中心电话报告,每30分钟电话向支队指挥中心报告火灾扑救情况,并通过图传设备将现场图像快速传输至支队指挥中心。火灾得到控制、已被扑灭时,电话向支队指挥中心报告。火灾扑救结束后30分钟内,上报《值班信息快报》。( )
A.正确
B.错误
[单选题]钢轨探伤仪37°探头探测60kg/m钢轨时,一斜裂纹出波在刻度5,该裂纹处于( )位置。
A.轨头
B.轨腰
C.轨底
D.轨底三角区
[单项选择]当总阻值升高,且某个芯体摇动无反应时,是因为该芯体()所致。
A. 断路
B. 短路
C. 通路
D. 旁路
[单选题]测绘地形图时,通常将地物、地貌的特征点称为()。
A.地形点
B.地物点
C.控制点
D.碎部点
[简答题]1现场作业人员未经安全准入考试并合格;------------3个月以上电气作业人员,未经专门安全教育培训,并经考试合格上岗,属于Ⅲ类严重违章
[单选题]轨道车在运行中,由于空转、轮滑、轮径等原因造成轨道车位置与实际公里标产生误差,为使GYK车位与轨道车位置实际公里标保持一致,必须进行( )操作。
A.警惕
B.警醒
C.解锁
D.对标
[单选题]场内调车作业,电客车司机在场调处领取调车作业单,接到调车任务后,不需了解的内容是( )。
A.待调电客车车体号
B.停放股道号和调入股道号
C.申请调车部门
D.列车技术状态
[单项选择]输油管线法兰连接处,在非腐蚀条件下,法兰盘连接螺栓少于()根时应跨接。
A. 4
B. 5
C. 6
D. 8
[判断题]现付是指旅客票价、行李、货物运费以及发站发生的杂费(或发站计算核收到站杂费)实行发送核算制,由到站负责计费收款,发送运输企业审核列账。
A.正确
B.错误
[单选题]培养真菌常用的培养基为:
A.罗氏培养基
B.血平板
C.巧克力平板
D.营养琼脂
E.沙保弱培养基(SABourAuD’s AgAr)
[单选题]型号XZJ5330JXFDG53表示徐工集团徐州重型机械有限公司生产的登高平台消防车,额定工作高度为( )m。(中)
A..53
B.33
C.30
D.35
[判断题]在狭小空间长时间作业,当无法使用个人携带式空气呼吸器时,应使用移动式供气源。( )(难)
A.正确
B.错误
[多选题] 业务咨询是指客户对各类(____)等问题的业务询问。
A. 供电服务信息
B. 服务渠道信息
C. 业务办理情况
D. 电力常识
[单选题]保证电器的机械强度、导电、导磁性以及介质的绝缘性不受损害的最高温度称为( )。
A.最高允许温度
B.温升
C.允许温升
[单选题]电磁力的大小与导体的有效长度成()。
A.正比
B.反比
C.不变
[填空题]中途折角变更运行方向的货物列车,列车尾部<--NRC-->辆之内禁止编挂关门车。
[填空题]Although it was his first experience as chairman, ______(他还是成功地主持了整个会议)
[单选题]在列检到发作业的线路两端来车方向的( ),应设置带有固定脱轨器的防护装置。
A.警冲标
B.道岔的尖轨始端
C.右侧钢轨上
D.左侧钢轨上
[单选题]使用时要将电桥( )放置。
A.水平;
B.垂直;
C.倾斜30 度角;
D.倾斜 45 度角
[单选题]In June 1956 a TWA Constellation collided with a United Air Lines DC-7 over the Grand Canyon in Arizona,killing all 128 people on both aircraft.At the time it was the worst ever airline disaster Struggling with outdated technology and a post-war boom in air travel overworked air-traffic controllers failed to spot that the planes were on a collision course.(1)With that system again struggling to keep pace with demand,Donald Trump thinks it is time to privatise Americas air-traffic control service.This week the president out-lined a plan to turn air-traffic control into a separate non-profit entity financed by user fees,instead of the present patchwork of taxes and grants.Shorn of its air-traffic responsibility,the FAA would become a satety body America's air-traffic system is vast,consising of 14,000 controllers working in 476 airport-control towers that handle take-offs and landings,as well as in 21"en route"centres looking after flights along the nation's airways.(2)This leads to delays and frustrated flyers.With passenger numbers set to grow from 800m a year to almost Ibn by 2026,the problem will only get worse(3)Many countries,including Australia,Britain and Canada,have privatised air-traffic services or turned them into state-owned firms.Nav Canada,a non-profit firm that has long managed Canadian airspace,has costs per flight hour of 340 compared with the FAA's$450.Replacing old radar-based methods with accurate satellite navigation and better digital communications is a particular priority.Aircraft using satellite navigation can be safely spaced more closely together,which permits many more planes to be in the air at the same time.Digital systems also provide data links to control centres and to other planes by regularly broadcasting an aircraft's identification sign,its position and course.(4)The president's proposal might even speed a move towards"virtual"control towers in low-rise buildings,which can replace towers physically localed at airports.The European Union reckons such innovations will allow three times as many flights to be handled in the region and save airlines some 9bn($10bn)a year.It also,optimistically perhaps,predicts that on average aircraft will land with in one minute of their scheduled arrival time.That would count as a miraculous improvement for any one,let alone America's weary airport warriors(5)A similar plan got stuck last year,despite being backed by most airlines and the air-traffic controllers'union.At least the president can dodge the queues Air Force One flights get special clearance
2选?
A.In addition to providing air traffic services,the FAA also provides safety oversight for those services,which may create an inherent conflict of interest
A.It has a good safety record,but elderly technology limits the number of flights that can be haned
B.Many Democrats argue that changing the status quo is unnecessary given that flying in the United States is as safe as it's ever been
C.Mr Trump believes that,no longer mired in a federal bureaucracy the air-traffic service will become more efficient and better able to invest in technology
D.This would allow"free routing",which means pilots can fly diretly to a destination,rather than fllow established aiways,which often zigzag around.
E.Mr Tump.though,may struggle to get the proposal through Congress.
F.That crash led to the creation of a new body,which became the Federal Aviation Administration(FA
G.,in charge of running and modermising the world's biggest air-transport system.
[多项选择]政府间财政支出划分的原则有()。
A. 效率性原则
B. 公平性原则
C. 权责结合原则
D. 与事权相对称原则
E. 考虑支出性质特点的原则
[单选题]下列不属于固定收益证券范畴的是()。
A.中央银行票据
B.优先股
C.普通股
D.结构化产品
[单项选择]牙行使功能性咬合之后形成的牙本质称为()。
A. 刺激性牙本质
B. 原发性牙本质
C. 继发性牙本质
D. 骨样牙本质
E. 修复性牙本质
[单选题]某公司上一年度每股收益为1元,公司未来每年每股收益以5%的速度增长,公司未来每年的所有利润都分配给股东。如果该公司股票今年年初的市场价格为35元,并且必要收益率为10%,那么( )。
Ⅰ.该公司股票今年年初的内在价值约等于39元
Ⅱ.该公司股票的内部收益率为8%
Ⅲ.该公司股票今年年初市场价格被高估
Ⅳ.持有该公司股票的投资者应当在明年年初卖出该公司股票
A.Ⅰ、Ⅱ
B.Ⅰ、Ⅲ
C.Ⅱ、Ⅲ
D.Ⅱ、Ⅲ、Ⅳ
[多项选择]实事求是、群众路线、独立自主是( )。
A. 毛泽东思想活的灵魂
B. 贯穿于毛泽东思想科学体系各个组成部分的立场、观点和方法
C. 表现在毛泽东的全部科学著作中
D. 表现在毛泽东个人的实践活动中
[判断题]《国家发展改革委关于调整销售电价分类结构有关问题的通知》规定在过渡时期:暂单列大工业用电类别。将现行大工业用电中的电解铝.电炉铁合金.电解烧碱.黄磷.电石.中小化肥等用电逐步归并于大工业用电类别。
A.正确
B.错误
[填空题]The mobile handset has completely turned into the next computer.
[单选题]从业人员发现事故隐患或者其他不安全因素,应当立即向现场安全生产管理人员或者本单位负责人( )。
A.A.报告
B.B.隐瞒
C.C.请示
D.D.负责
[多选题]按照《建筑抗震设计规范》(GB 50011—2010),对于可液化土的液化判别,下列选项中哪些说法是不正确的?( )
A.抗震设防烈度为8度的地区,粉土的黏粒含量为15%时可判为不液化土
B.抗震设防裂度为8度的地区,拟建8层民用住宅采用桩基础,采用标准贯入试验法判别地基土的液化情况时,可只判别地面下15m范围内土的液化
C.当饱和土经杆长修正的标准贯入锤击数小于或等于液化判别标准贯入锤击数临界值时,应判为液化土
D.勘察未见地下水时,不需要进行液化判别
[多选题]下列属于标准化金融工具的是( )。
A.承兑汇票
B.固定收益类金融工具
C.衍生类金融工具
D.信托贷款
E.货币市场工具
[单选题]某建筑高度32米,每层建筑面积均为1400㎡,地下一层设置了歌舞厅、商场等场所,设有室内消火栓、自动喷淋和火灾自动报警系统。请问该歌舞厅的吊顶装修材料应为( )级材料;
A.A
B.B1
C.B2
D.B3