热门试题:
[单选题]DR50-16CT2型电开水炉当开水箱的开水水位低于()电极，煮水箱内的发热管通电煮水。
A.4号
B.5号
C.6号
D.9号
[单选题]在带电线路、设备附近立、撤杆塔，杆塔、拉线、临时拉线、起重设备、起重绳索应与带电线路、设备保持表6-1所规定的安全距离，且应有防止（）接近带电导线的措施。
A.立杆过程中拉线跳动和杆塔倾斜
B.立、撤杆过程中拉线跳动和杆塔倾斜
C.立、撤杆过程中拉线跳动
D.撤杆过程中拉线杆塔倾斜
[单项选择]
IOPP证书在有下列（）情况之一时，即行失效。
Ⅰ、未经主管机关许可，对所要求的结构、设备、各种系统、附件、布置或材料作了重大的改变；Ⅱ、未进行规定的期间检验；Ⅲ、船舶改悬另一国国旗。
A. Ⅰ+Ⅱ
B. Ⅱ+Ⅲ
C. Ⅰ+Ⅲ
D. Ⅰ+Ⅱ+Ⅲ
[单项选择]他们对战争持稳慎态度，主张“谨慎为先”、“稳慎为主”；在战略上，强调“慎静缓图”，谋定后动，稳扎稳打，不求速效。“他们”是指（）。
A. 湘军
B. 红军
C. 淮军
D. 解放军
[简答题]某厂一位有20年工龄的工人失业，当地社会救济金标准每人每月给付额400元，如果失业保险金按照社会救济金150%的标准计发，请列出算式并计算该工人在失业期内最多可以领取的失业保险金额。
[判断题]乌龟同鸟一样,都需要孵蛋。( )
A.正确
B.错误
[单选题]绝缘操作杆在操作额定电压为220kV的带电线路时，最短有效绝缘长度为（）m。
A.1.1
B.1.3
C.2.1
D.2.0
[判断题]电务作业人员上道必须按规定穿戴防护用品，夜间作业或在隧道内作业时，必须穿反光防护服背心。
A.正确
B.错误
[单选题]有一首歌唱到“一九七九年那是一个春天”,“一九九二年又是个春天”,歌中的两个“春天”分别喻指( )。
A.“三步走”部署和“一个中心,两个基本点”
B.建立经济特区和邓小平南方谈话
C.国有企业改革和建立社会主义市场经济体制
D.家庭联产承包责任制和国有企业改革
[单选题]对设备操作人员做到“三好”中管好的要求不正确的是( )
A.A、操作者对设备负有保管责任未经领导同意不许他人动用
B.B、设备的附件、仪器、仪表、工具、安全防护装置必须保持完整无损
C.C、设备运转时要离开岗位应委托他人暂代管
D.D、设备发生事故立即停车断电保护现场及时、真实地上报事故情况
[单选题]电灯忽亮忽熄或忽亮忽暗，说明（ ）。
A.有电炉接入
B.误接入380V电源
C.电线接头或开关松动
D.供电变压器高、低压线圈之间绝缘击穿
[单选题]发动机某缸压力过低，其余各缸压力正常，其故障原因为( )。
A.节气门全开
B.该缸气门关闭不严
C.压缩比低
D.气门间隙过大
[单选题]机车小、辅修计划兑现率至少要高于()。
A.95%
B.90%
C.80%
[单选题]触电急救，胸外心脏按压频率应保持在（）次/min。
A.60
B.80
C.100
D.120
[单项选择]设A是4×6矩阵，则齐次线性方程组AX=0解的情况是（）。
A. 无解
B. 只有零解
C. 有非零解
D. 不一定
[单项选择]{{B}}Part A{{/B}}
{{I}} You will hear 10 short dialogues. For each dialogue, there is one question and four possible answers. Choose the correct answer A. ,B. ,C. or D. , and mark it in your test booklet. You will have 15 , seconds to answer the question and you will hear each dialogue ONLY ONCE.{{/I}}What is the man’s opinion about Smiths’ investment
A. He feels they have done a wise thing.
B. He doesn’t think they should move.
C. He thinks it is better to invest later.
D. He thinks it is unwise to buy stocks.
[单选题]《铁路旅客运输服务质量规范》规定：发电车供电的空调客车须在列车始发前（ ）分钟供电并开启空调预冷预热，机车供电的空调客车须在列车始发前60分钟（特殊情况（ ）分钟）完成机车连挂和供电，对车厢进行预冷或预热；
A.50,40
B.60,30
C.60,40
D.50,30
[多选题]总（分）部、省公司、直属单位两级集中采购活动需按照采购目录清单和推进进度，纳入平台实施采购的包括哪些？
A.零星物资及办公用品交易寻源
B.非招标采购
C.授权采购
D.归入公司管理的用户工程
E.纳入地方交易平台项目
[多选题]下列哪几项属于九个特殊环节的瓦斯管理?( )
A.小窑连通处
B. 采煤面隅角
C. 巷道贯通时
D. 初次来压及周期来压时
[单选题]内燃机车空气压缩机用电机是( )。
A.直流电机
B.感应式异步电机
C.同步电机
D.绕线式异步电机
[不定项选择题]共用题干
A Star Is Born
1 The VLT (Very Large Telescope) is the world's largest telescope（望远镜）and is
taking astronomers（天文学家） further back to the Big Bang than they ever thought
possible.Located 2,600 metres up in the Chilean Andes,it has four huge mirrors,each about the size of a London bus.The VLT is so powerful it can spot a burning match 10,000
kilometres away.
2 This astonishing power will allow astronomers to see events in space from the birth of
stars to the collision（碰撞）of galaxies（星系）on the edge of the cosmos（宇宙）.The
VLT is giving astronomers their best-ever view of the cosmos.The power of the VLT to see
the smallest detail at the furthest distances makes its designers amazed.
3 Take the case of Eta Carinae,one of the most explosive stars in the universe.This star
produces ultraviolet laser rays（紫外线）and it will destroy itself in a few million years' time.
It is five times brighter than the sun and when it explodes it is going to be a sight worth
waiting for!
4 But it is at distances of millions,even billions,of light years that the VLT really shows
its power. The VLT can detect light that set out on its journey before the earth even existed.
This gives astronomers their first-ever detailed views of events that took place in the earliest
days of the cosmos.
5 In other words,the VLT is a kind of a time machine.It takes astronomers back to a
time when complete galaxies crashed into each other. The effects of these past collisions
can now be seen by scientists,and astronomers believe the telescope will reveal more
about these exciting' events in the years to come.One day,we might be able to say we
have traveled back to the beginning of time,and we will have a much clearer picture of how
our planet was born.
Scientists believe the VLT will tell us more about_________.
A.its detecting power
B.millions of light years away in space
C.the location of the VLT
D.as an example
E.the birth of the earth
F.the rotation of the earth
[判断题] 吸收现象通常表现为电气设备的绝缘电阻随充电时间的增加而降低。()
A.正确
B.错误
[判断题]吹尘作业时必须佩戴口罩等防尘劳保用品。
A.正确
B.错误
[填空题] During recent years we have learned much about "race": how this race does certain things and that race believes certain things and so on. Yet, the (B1) phenomenon of race consists of few surface indications.
We judge race usually (B2) the coloring of the skin: a white race, a brown race, a yellow race and a black race. But (B3) you were to remove the skin you could not (B4) anything about the race to which the individual belonged to. There is (B5) in physical structure, the brain or the internal organs to (B6) a difference.
There are four types of blood. (B7) types are found in every race, and no type is distinct to any race. Human brains are the (B8) .No scientists could examine a brain and tell you the race to which the individual belonged. Brains will (B9) in size, but this occurs within every race. (B10) does size have anything to do with intelligence. The largest brain (B11) examined belonged to a person of weak (B12) .On
A. A．something
B．everything
C．nothing
D．anything
[单选题]仪表的精度级别指的是:( )
A.基本误差
B.最大误差
C.基本误差的最大允许误差
D.以上都不对
[单选题]扣押、楼留、查封期限为（ ）。
A.十日
B.二十日
C.三十日
D.十四日
[单选题]《12306.cn网站关于客运知识相关问答》在售票窗口购买实名制车票时，为了提高购票速度，建议中国公民使用（ ）购票。
A.驾驶证
B.护照
C.工作证
D.二代居民身份证
[单选题](id4203)着陆标高已人工设定好,指针指在“4”的位置上,其值为多少
A.4FT
B.40FT
C.400FT
D.4000FT
[判断题]沉淀处理的设备中，带泥渣层的称澄清池，不带泥渣层的称沉淀池。（1分）()
A.正确
B.错误
[单选题]起吊前应检查起重设备及其安全装置；重物吊离地面约（）cm时应暂停起吊并进行全面检查，确认良好后方可正式起吊。
A.5
B.10
C.15
D.20
[多选题]期货合约的主要条款包括（ ）等。
A.交易单位
B.最小变动价位
C.合约交割月份
D.合约价格
[判断题]2.71 社会辅助考试人员可以独立承担小型汽车、小型自动挡汽车、残疾人专用小型自动挡载客汽车科目三道路驾驶技能考试辅助评判工作。
A.正确
B.错误
[多选题]国家税务总局局长王军社会保险费和非税收入征管职责划转工作视频会议上要求各级税务部门要把按期圆满完成改革任务作为检验新税务机构战斗力的“试金石”,紧紧依靠各级政府的组织领导,紧紧依靠各相关部门的支持协作,尽职担当,主动作为,协力抓好()等一系列工作.
A.. 划转交接
B..制度建设
C..信息系统搭建
D..征管服务改进
[判断题]长径比为建筑平面几何外形尺寸中的最长尺寸与其横截面周长的积和4倍的该建筑横截面面积之比。当厂房的长径比大于3时，宜将该建筑划分为长径比小于或等于3的多个计算段，各计算段中的公共截面不得作为泄压面积。（）
[单选题]通号分公司生产用房管理细则中规定：无人值守的生产用房责任人应对生产用房_____进行巡查，并留存巡查记录。
A.固定
B.不定期
C.定期
D.随时
[单选题]下列不属于填石路基实测项目的是（）。
A.弯沉值
B.宽度
C.厚度
D.平整度
