第1题: [单项选择]
烟气中灰粒对受热面管子的磨损量与烟气速度的()成正比。A. 一次方
B. 二次方
C. 三次方
D. 四次方
参考答案:C
第2题:
[单选题]焊接工艺规程的支柱和基础是( )。A.A、工厂经济条件
B.B、焊接工艺评定
C.C、工厂生产条件
D.D、工人技术水平
参考答案:B
第3题:
[多选题]蓄电池在验收时应进行(____)检查。A.蓄电池室及其通风、采暖、照明等装置应符合设计的要求
B.布线应排列整齐,极性标志清晰、正确;电池编号应正确,外壳清洁,液面正常
C.初充电、放电容量及倍率校验的结果应符合要求;极板应无严重弯曲、变形及活性物质剥落
D.蓄电池组的绝缘应良好,绝缘电阻应不小于0
E.5MΩ
参考答案:ABCD
第4题:
[单选题]配电作业现场指配电网中的架空线路、电缆线路及其附属设备和20kV及以下配电网中的配电站、开闭所、箱式变电站、柱上变压器、()、环网单元、电缆分支箱,以及低压醴电箱、计量箱、充电桩等范围内进行工作的作业现场。
A.A.柱上开关
B.B.隔离开关
C.C.断路器
D.D.绝缘子
E.略
F.略
G.略
参考答案:A
第5题: [单项选择]
物业建设单位与物业管理企业就前期物业管理阶段为确定双方的权利义务所达成的协议是( )。A. 前期物业服务合同
B. 物业服务合同
C. 物业管理合同
D. 前期物业管理合同
参考答案:A
第6题: [单项选择]
一个梅脱是安静状态下的代谢率,约相当于消耗()的氧。A. 3.5ml/kG.min
B. 4.5ml/kg.min
C. 5.5ml/kg.min
D. 6.5ml/kg.min
参考答案:A
第7题: [单项选择]
成人眼表面泪液的量每眼约()A. (3±2)μl
B. (5±2)μl
C. (7±2)μl
D. (9±2)μl
E. (11±2)μl
参考答案:C
第8题:
[单选题]对于造成实际损失的,金额在()以 下,由员工全额赔付A.1000 (不含)
B.1000 (含)
C.5000 (含)
D.5000 (不含)
参考答案:C
第9题:
[单选题]供电方作业人员应会同客户工作负责人检查现场所做的技术措施,对具体的设备指明实际的隔离措施,证明检修设备确无电压。
A.正确
B.错误
C.略
D.略
E.略
F.略
参考答案:B
第10题: [名词解释]
地被植物参考答案:
凡能覆盖地面的植物均称地被植物,除草本植物,木本植物中个体矮小的丛木,偃伏状或半蔓性的灌木以及藤木均可能用作园林地被植物。它对改善环境,防止尘土飞扬、保持水土、抑制杂草生长、增加空气湿度、减少地面热辐射、美化环境等方面有良好作用
第11题: [多项选择]
聚合物混凝土按其胶结料及配制工艺的不同,通常分为()。A. 钢筋混凝土
B. 树脂混凝土
C. 聚合物水泥混凝土
D. 聚合物浸渍混凝土
参考答案:B, C, D
第12题:
[单选题]手术后卧位,下列哪一项是错误的( )A.全麻术后未醒的病人,应去枕平卧,头向一侧
B.颈、胸、腹术后,一般取 30~45°半卧位,膝关节稍屈曲
C.腰麻病人,去枕平卧
D.脊柱手术一般平卧硬板床
E.颅脑手术取平卧位
参考答案:E
第13题: [简答题]
什么是人文科学?参考答案:
人文主义科学通常被说成是“人文学”,是指关于人的本身的学说或者理论体系,是对人的存在、本质、价值和发展问题以及人的自然属性、社会属性、精神属性进行研究的学问。
第14题:
[判断题]突出事故发生后,切断灾区和受影响区的电源,但必须在近距离断电,防止产生电火花引起爆炸。(判断题)
A.正确
B.错误
参考答案:B
第15题: [单项选择]
( )以成本标准控制成本实际支出,并将成本的实际支出与成本标准进行比较,及时发现产生的偏差,以消除或减少这些差异。
A. 事前控制
B. 事中控制
C. 事后控制
D. 馈性控制
参考答案:B
第16题:
[单选题]用于迅速启闭的切断阀应选择( )特性的调节阀。A.快开
B.等百分比
C.抛物线
参考答案:A
第17题:
[单选题]以下不属于EP2002系统紧急制动施加条件的是( )。A.总风压力低于6.0bar
B.警惕按钮未按下达到3秒
C.EBAPR继电器失电
D.司机按下紧急制动按钮
参考答案:B
第18题: [单项选择]
商品消费部门的垄断程度越高,其需求的波动幅度就( )A. 越小
B. 越大
C. 不变
D. 以上皆有可能
参考答案:B
答案解析:一般来说,商品消费部门的垄断程度越高,这种商品的价格波动幅度就越大。
第19题:
[单选题] 用输送机敷设电缆时,下列说法错误的是( )。 (1.0分)A. 所有敷设设备应固定牢固
B. 作业人员应遵守有关操作规程;
C. 如果经验丰富,发生故障可以带电处理
D. 发生故障应停电处理
参考答案:C
第20题:
[简答题]自然冷却:参考答案:轧制终了的钢材在大气中自然冷却的方法称为称为自然冷却。
第21题:
[判断题]两个企业通过网络进行的交易肯定是B2B模式。()A.正确
B.错误
参考答案:B
第22题: [简答题]
请演示口对口人工呼吸的操作。参考答案:
1.患者置于硬板床上或地上,头向后仰,将下颌推向前上方,用拇指压下唇使口张开,清除呕吐物,保持呼吸道畅通。
2.术者半跪于患者头端一侧,用一手托起患者下颌,使患者张口,另一手捏住患者的鼻孔。
3.术者深吸一口气,将口贴紧患者的口部缓慢而均匀徐徐吹入,使患者胸部缓缓张起。
4.吹气完后,术者口离开,同时松开捏鼻孔的手,轻压患者胸部,借助肺弹性回缩排出肺内的气体。
5.如此反复进行,吹气频率成人12~16次/分,儿童18~20次/分,吹气时间占呼吸周期的1/3。
第23题:
[单选题]在桥型接线中,适用于线路短、变压器操作较多的情况的接线方式是(____)。A.A.内桥接线
B.外桥接线
C.单元接线
D.单母线接线
参考答案:B
第24题:
[判断题]工作许可人确认由其负责的安全措施正确实施。A.正确
B.错误
参考答案:A
第25题:
[判断题]要根据事实来描述事实,既准确报道个别事实,又从宏观上把握和反映事件或事物的全貌。这个说法是( )。
A.正确
B.错误
参考答案:A
第26题: [判断题]
根据能斯特方程电极电位E与离子浓度的对数成线性关系。测出电极电位,就可以确定离子浓度,这就是电位分析的理论依据。
参考答案:对
第27题:
[多选题]下列用于校验变电站电压互感器的环境条件有()。A.最大风速
B.海拔高度
C.地震烈度
D.污秽等级
参考答案:ABCD
第28题:
[单选题]高阶通道误码检测功能采用( )字节。A.B1
B.B2
C.B3
D.V5
参考答案:C
第29题: [单项选择]
发行人及其主承销商应当向参与网下配售的询价对象配售股票,并应当与网上发行同时进行。本次发行的股票向战略投资者配售的,发行完成后无持有期限制度股票数量不得低于本次发行股票数量的( )。
A. 15%
B. 25%
C. 20%
D. 10%
参考答案:B
第30题:
[单选题]游标卡尺上端有两个外量爪是用来测量()。A.内孔
B.长度
C.外径
参考答案:A
第31题:
[判断题]施工特定行车时车站可不按规定办理行车手续。A.正确
B.错误
参考答案:B
第32题:
[判断题](1分) 当地上液化石油气贮罐与站内设施之间设置防火隔墙时,贮罐与设施之间的防火间距可按绕过防火隔墙两端的距离测量值计算。()
A.正确
B.错误
参考答案:A
第33题: [单项选择]
渠(河)堤决口的抢护,—般常用的方法是在决口两端抛入除()。A. 石块
B. 土袋
C. 钢筋笼
D. 柴捆
参考答案:C
第34题:
[单选题]我国的农谚中有句话叫“谷雨前和后,种瓜又点豆”,说的就是蔬菜种植必须遵循一定的季节和时间规律。然而现代农业技术巳经使得反季节蔬菜种植成为常态,大大丰富了我国北方地区冬季“菜篮子”的选择。由此可见( )。
A.矛盾的普遍性以特殊性为补充
B.必然性离不开偶然性
C.科学技术的发展和运用可以改变自然规律
D.人可以认识和利用规律
参考答案:D
第35题:
[单选题]我国魏晋时期的著名数学家()运用极限理论提出的计算圆周率的科学方法,奠定了此后千余年来中国圆周率计算在世界上的领先地位。
A.祖冲之
B.郭守敬
C.刘徽
D.宋应星
参考答案:C
魏晋时期的数学家刘徽,运用极限理论,提出了计算圆周率的正确方法。祖冲之是南北朝时期的数学家,其他两项均不是数学家。因此,本题选择C选项。
第36题: [简答题]
If you are a policy maker, what are your Ultimate Targets of Monetary Policy
参考答案:
The Four Ultimate Targets of Monetary Policy The four targets of monetary policy include: (A) Economic growth, (B) Price stability, (C) Full employment, and (D) Balance of payments equilibrium. (A) Economic growth Economic growth refers to the growth of a nation’s GDP which is the total value of goods and services domestically produced. People’s living standard has increased dramatically over history as result of the growth of the economy and its productivity. But growth means more than merely increasing total output. It requires that output increase faster than the population so that the average output per person expands. Economic growth in every country is the first target of monetary policy. Without certain growth rate, national economy will be in a state of stop or shrinkage and it will be impossible to enhance a nation’s economic strength and raise people’s living standard. (B) Price stability Price stability means the stability of currency value and control of inflation without great change of price level within certain period. The price stability reflects the general trend of price change or average level. In modern economic society, the general price level shows a rising trend in fact. Price stability is to limit the increase rate of the price level of a certain period within certain scope. As for the certain scope within which the increase rate of price level should be kept, there are different views among economists. Generally speaking, if the rising rate of price level is within B%—C%, it can be called price stability. Consistently stable prices help create an environment in which the other economic targets are more easily reached. (C) Full employment Full employment means the people who have ability to work and are willing to work can find suitable jobs at present wage level. Full employment is measured with the unemployment rate of labor force. The unemployment rate is the ratio of the number of the unemployed and the labor force willing to work. The unemployment rate represents the extent of full employment in a society. Unemployment means a loss of potential output and imposes costs on the entire economy. For many reasons, a high employment level is one of the paramount goals of monetary policy. Unemployment deprives families of their chief source of income, triggers a host of social problems such as increased incidence of crime and mental illness, and impacts most heavily on the disadvantaged and those at the lower end of the income scale. Collectively, increased unemployment reduces the nation’s level of output and income as well as tax revenues at all levels of government, thereby impairing such public services as roads, public security, and education. Monetary policy affects the unemployment rate by influencing aggregate expenditures on goods and services and the level of the nation’s gross domestic product (GDP). As monetary policy becomes more stimulative, aggregate expenditures and GDP increase and the unemployment rate falls, sometimes below the natural rate. The natural unemployment rate is defined as the lowest level at which the nation’s unemployment rate can be maintained without triggering an increase in the existing inflation rate. If monetary policy becomes too stimulative and the nation’s unemployment rate falls below the natural rate, inflation accelerates. Hence, a goal of central bank policy is to keep the nation’s unemployment rate as close as possible to the natural unemployment rate without going below it. Unfortunately, the natural unemployment rate changes over time and is uncertain at any point in time. Most economists believe it is currently somewhere in the E to F percent range. (D) Balance of payments equilibrium Balance of payments is the total record of a country’s (or region’s) economic transactions, including money receipts from and payments to abroad, the difference between receipts and payments forms the surplus or deficit. It also includes some economic transactions even if they will never give rise to monetary settlements. Balance of payments during certain period reflects the state of economic development of a country and the country’s external economy. To maintain balance of payments equilibrium and reasonable quantity of foreign exchange are important conditions of a country’s stable development of economy and international intercourse. So to maintain balance of payment equilibrium should be another important target of monetary policy.
第37题:
[多选题]下列哪些是水灾事故的预兆( )。A.A、煤层发潮
B.B、煤壁挂汗
C.C、煤层巷道发冷
D.D、巷道出现雾气
参考答案:ABCD