热门试题:
[单选题]一次起道或拨道量超过40mm，进行人工捣固作业，施工期间，当日列车限速的速度阶梯是( )。
A.一列25km/h，第二列45km/h，不少于4h，以后限速60km/h至下次封锁前1h
B.第一列25km/h，第二列45km/h，不少于12h，以后60km/h、80km/h、120km/h各不少于24h，其后正常(允许速度≤120km/h的线路为80km/h，24h后恢复正常)
C.第一列15km/h，第二列25km/h，第三列45km/h，不少于4h，以后限速60km/h至下次封锁前1h
D.第一列15km/h，第二列25km/h，第三列45km/h，不少于4h，以后60km/h、80km/h、120km/h各不少于24h，其后正常
[单选题]国产 75kg/m 钢轨，轨腰厚是( )
A.20mm
B.16.5mm
C.15.5mm
D.14.5mm
[判断题]建筑安全监督管理机构应当对工程建设设计、施工阶段执行施工安全强制性标准的情况实施监督。
A.正确
B.错误
[填空题]The information system is made up of ______.
[判断题]乘坐公务机的旅客、机组人员,在机长陪同下接受安全检查;公务机公司或其地面代理机构开具的旅客人员名单可视为有效乘机凭证;机组人员需查验其机组人员证件。
A.正确
B.错误
[多项选择]肌肉锻炼需注意（ ）
A. 适度
B. 适量
C. 掌握要领
D. 不应引起明显疼痛
E. 运动前后应做准备及放松运动
[单选题]在带电的（ ）二次回路上工作。应采取措施防止电流互感器二次侧开路。短路电流互感器二次绕组，应使用短路片或短路线，禁止用导线缠绕。
A.变压器
B.电压互感器
C.电流互感器
D.电气设备
[单项选择]心脏性猝死的病因，最常见的是
A. 先天性心脏病
B. 扩张型心肌病
C. 冠心病
D. Q-T间期延长综合征
E. 充血性心力衰竭
[判断题]使用起重机组塔时，车身应使用不小于25mm2的铜线可靠接地。（ ）
A.正确
B.错误
[判断题]高压配电线路不得进行地电位作业。
A.正确
B.错误
[多项选择]根据交通银行个人业务操作规程，以下岗位必须分离的是：（）
A. 监控录像设备管理
B. 柜面经办、自助设备清装钞经办
C. 办理银行卡
D. 参数管理
[填空题]
The Side Effect of Market Mechanism
The market mechanism might also select the wrong choice about HOW to produce. Consider the message that unregulated markets communicate to producers. In an unregulated market,
(31) price would be charged for using air or waterways, since
(32) is owned by any individual. Producers,
(33) would regard the use of air and waterways as a "free" good. Under such circumstances it would be a lot cheaper for a factory to dump its waste into nearby waterways than to dispose of it more carefully. It would also be
(34) for power plants to let waste gases and soot go up in smoke than to install environmental safeguards. The resulting pollutants are an externality—a cost imposed
(35) innocent third parties. Consumers would be worse off as the quality of the air and water deteriorated.
Profit-driven producers would seldom worry about externalities in a completely unregulated
[判断题]安全帽由帽壳、帽衬和帽檐组成。
A.正确
B.错误
[判断题]政治环境涉及资本的安全性，是投资者最敏感的问题之一。（ ）
A.正确
B.错误
[单项选择]The first English dictionary, called an Alphabetical Table of Hard Words, was published in 1604. The dictionary was actually (26) a list of about 3 000 difficult words, each followed by a one word (27) . The author, Robert Cawdrey, (28) to include everyday words in his dictionary. (29) , he reasoned, would ever have to look up a word in a dictionary if he already knew the meaning of the word. During the 1600’ s more dictionaries were published. Each followed Cawdrey’ s (30) and presented a few thousand (31) words. Around 1700 one dictionary maker, John Kersey, (32) define easy words as well as hard ones. But until the 1750’ s all dictionaries were rather (33) and not very valuable.
A man named Dr. Samuel Johnson (34) all this. In 1755 Dr. Johnson produced the first modern dictionary. He (35) in his dictionary all important words, both easy and hard, and he gave good meanings. He also
A. no less than
B. much less than
C. nothing more than
D. much more than
[单项选择]跨国公司是（）。
A. 企业的一种组织形式
B. 企业的一种活动行为
C. 企业的一种活动方式
D. 商品和劳务的进出口
[单选题]跟踪出站调车,最远不得越出站界( ) m。
A.200
B.500
C.800
[单选题]爱国与否的最大政治分野是看是否( ).
A. 拥护祖国统一
B. 拥护社会主义
C.是社会主义劳动者
D.是社会主义建设
[判断题]当无法确定线路发生胀轨还是跑道时，应先设置慢行信号防护，再进行应急处理，绝不冒险放行列车。
A.正确
B.错误
[判断题]二级化学防护服为连体式全密封结构,由带大视窗的连体头罩、化学防护服、内置式正压式消防空气呼吸器背囊、化学防护靴、化学防护手套、密封拉链、超压排气阀和通风系统等组成。( )
A.正确
B.错误
[判断题]一张配电工作票中，现场工作许可人与工作负责人不得相互兼任。
A.正确
B.错误
[单选题]有毒有害化学品的高毒性和受到伤害的突然性，可通过( )使无防护的人员受到伤害。
A.表皮
B.呼吸道
C.眼睛
D.触摸
[判断题]厌氧污泥是在厌氧的条件下形成的，由微生物和无机物形成的絮状颗粒，厌氧污泥主要用于处理污水、生产甲烷以及污水中的脱氮和除磷。( )
A.正确
B.错误
[多项选择]施工单位应当制定本单位生产安全事故应急救援预案，并且( )。
A. 将演练情况报当地建设行政主管部门
B. 配备必要的应急救援器材、设备
C. 定期组织演练
D. 建立应急救援组织或配备应急救援人员
E. 各行动组接到通知后，立即赶往事发现场
[判断题]人民警察遇有暴力方法阻碍其依法履行职责的，经警告无效，可以使用警棍等驱逐性、制服性警械。
A.正确
B.错误
[单项选择]宙斯是谁？（）
A. 王子
B. 仆人
C. 天帝
[单项选择]质权因质物灭失而消灭，故因灭失所得的赔偿金不得作为出质财产。
A. 正确
B. 错误
[单选题]一个正确的认识往往需要经过 （ ）
A. 由实践到认识、由认识到实践的过程
B. 由感性认识到理性认识，由理性认识到实践的过程
C. 由实践到认识、由认识到实践的多次反复才能完成
D. 由物质到精神，由精神到物质的过程
[单选题]下列不属于非线性编辑软件的是( )。
A.SonyVegas
B.Photoshop
C.Premiere
D.Edius
[单选题]具有抵偿性特征的误差是
A.随机误差
B.系统误差
C.测量误差
D.相对误差
E.引用误差
[简答题]试述齿轮传动的总等效惯量与传动级数之间的关系。
[单项选择]牙体缺损修复时，修复体固位力最好的是哪一种类型
A. 嵌体
B. 树脂全冠
C. 铸造金属全冠
D. 3/4冠
E. 桩冠
[单项选择]以下有关数据结构的基本概念的叙述，不正确的是( )。
A. 数据的逻辑结构分为线性结构和非线性结构
B. 数据结构包括数据逻辑结构、存储结构和对数据的运算3方面内容
C. 数据项是数据的基本单位
D. 数据的运算定义在数据的逻辑结构上
[单项选择]
The home computer industry has been growing rapidly in the United States in the last ten years. Computers used to be large, expensive machines that were very difficult to use. But scientists and technicians have been making them smaller and cheaper while at the same time they have been made easier to use. As a result, their popularity has been increasing as more people have been buying computers for their homes and businesses. Computers have been designed to store information and compute complex problems. Some have voices that speak with the operators. Stores use computers to keep records of their inventories and to send bills to their customers. Offices use computers to type letters, record business and com- municate with other offices. People have been using computers in their homes to keep track of expenses and turn appliances on and off.
One important new use of computers is for entertainment. Many new games have been designed to be played on the computers. People of
A. The development of electronic computer.
B. How to operate a computer
C. What’s the use of computers
D. What do the scientists and technicians do about computers
[多选题]CRH380BL型动车组蓄电池在（ ）车。
A.1、16
B.2、7
C.4、5
D.12、13
[单选题]根据《货物贸易外汇管理指引》,外汇局实行( )。( )
A.“货物贸易企业名录”登记管理
B.“贸易外汇收支企业名录”登记管理
C.“外汇贸易企业名录”登记管理
D.“进出口贸易企业名录”登记管理
