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[单选题]SS4型电力机车低压试验前将牵引电机隔离开关置悬空位,测量牵引绕组对地绝缘电阻值应不小于( )。
A.0.5MΩ
B.2MΩ
C.3MΩ
D.100MΩ

热门试题:

[多选题]制定关键性吊装作业方案,方案应该包括以下哪些内容:()
A.起重机的载荷
B.吊臂的长度、角度
C.起吊过程中的各种阻碍
D.约定指挥信号
[单项选择]After I ______ the work of the department, I was transferred to another one.
A. learnt
B. had learnt
C. would learn
D. was learning
[单项选择]
Fighting Binge Drinking On Campus It Takes a Village.

It’s no secret that binge drinking is a thriving extracurricular activity on most college campuses today--any frat (兄弟会) party or tailgate bash will show you that. For years, university administrations have vowed to crack down on the practice, but their efforts seem to consistently fall short, as evidenced by student deaths and booze-induced (痛饮诱发的)sexual-abuse crimes. Nearly half of college students binge-drink, meaning they have five or more drinks in one sitting with the intention of getting drunk, says the Core Institute, a Southern Illinois University group that administers national surveys and tracks alcohol use at colleges and universities. What’s worse, more than 1,800 students die each year in alcohol-related accidents--a number that is rising.
With alcohol abuse becoming more pervasive, do universities need to get tougher with existing policie
A. to impose higher alcohol taxes
B. to produce less amount of alcohol
C. to impose more severe penalties
D. to adopt more strict regulations

[多项选择]根据《治安管理处罚法》的规定,举办文化、体育等大型群众性活动,违反有关规定,有发生安全事故危险的情况,公安机关可以采取的措施有()。
A. 强行驱散
B. 责令停止活动
C. 取缔
D. 立即疏散
[单选题]开展真理标准问题讨论的历史意义是()。
A.为改革开放奠定思想理论基础
B.开创了改革开放新阶段
C.提出了四项基本原则
D.召开了十一届三中全会
[判断题]井喷失控是井下作业中性质严重.损失巨大的灾难性事故。
A.正确
B.错误
[单项选择]女职工生育享受不少于()天的产假。
A. 30
B. 60
C. 90
D. 180
[多选题]工务段应根据维修作业项目内容配合完成以下工作:对作业地段进行( )作业,并指派专人在作业中随时测量轨温变化。
A.抽板
B.方枕
C.改道
D.更换失效轨枕
[单选题]A-D-A-009 5 2 2
新II型混凝土轨枕的质量为( )。
A.240kg
B.250kg
C.273kg
D.320kg
[判断题]轨跟端直向轨距加宽应向辙叉方向递减,距离为1.5m。( )
A.正确
B.错误
[单项选择]不具备《旅行社业务经营许可证》的商家,发布包含两项及以上服务且为买家安排行程的商品,且情节严重的,给予()处理。
A. 下架商品
B. 下架商品扣六分
C. 删除商品扣六分
D. 删除商品扣十二分
[多选题]初始附着时eNB收到UE发送的RRC Connection Request消息不会建立下述哪些无线承载
A.SRB1
B.SRB3
C.DRB
D.SRB2
[简答题]政治问题主要是什么?
[判断题]20号优质碳素钢做导汽管时壁温可超过450摄氏度。
A.正确
B.错误
[多选题]供电单位或施工单位到用户变电站内施工时,工作票应由有权签发工作票的( )签发。
A.用户单位
B.施工单位
C.供电单位
D.安监部门
[判断题]张某因宅基地纠纷被邻居殴打,该到公安机关报案要求处理的行为说明法具有可诉性。
[填空题]试验现场应装设遮栏(围栏),遮栏(围栏)与( )高压部分应有足够的安全距离。
[判断题]行车日志包括“编组(区段)站行车日志(运统2)”和“中间站行车日志(运统3)”
A.正确
B.错误
[单项选择]

In every cultivated language there are two great classes of words, which makes up the whole vocabulary. First, there are those words (56) which we become familiar in daily conversation, which we (57) , that is to say, from the (58) of our own family and from our friends, and (59) we should know and use (60) we could not read or write. They (61) the common things of life with all the people who (62) the language. Such words may be called "popular", since they belong to the people (63) and are not excluded (64) a limited class.
On the other hand, our language (65) a large number of words which are comparatively (66) used in ordinary conversation. Their meanings are known to every educated person, but there is little (67) to use them at home or in the market-place. Our (68) acquaintance (熟悉) with them comes not from our mothers’ (69) or from the talk of our schoo
A. possibility
B. way
C. reason
D. necessity

[判断题]听到“坐下”的口令后,右小腿在左小腿后交叉,迅速坐下,手指自然并拢放在两膝上,上体保持正直。( )
A.正确
B.错误
[单选题]计算机网络按网络的覆盖范围与规模分,可以分为局域网、城域网和()。
A.无线网
B.广域网
C.光纤网
D.分组交换网
[单项选择]

Most worthwhile careers require some kind of specialized training. Ideally, the choice of an (1) should (2) even before choice of a curriculum in high school. Actually, most people make several job choices during their working lives, (3) because of economic and industrial changes and partly to (4) their position. The "one (5) job" does not exist. Young people should (6) enter a broad (7) training program that will (8) them for a field of work rather than for a single job.
Unfortunately many young people have to make career plans without benefit of help from a(n) (9) vocational counselor or psychologist. Knowing (10) about the occupational world, or themselves for that matter, they choose their lifework on a hit-or-miss (11) . Some (12) from job to job. Others (13) to work in which they are unhappy and (14) they are not fitted.
One
A. ideal
B. perfect
C. imaginary
D. satisfactory

[多选题]客运车站内不出售( )等严重影响环境卫生的食品。
A.无生产单位
B.无生产日期
C.无保质期
D.口香糖
[单项选择]个人独资企业,是指依法设立,由一个自然人投资,财产为投资人个人所有,投资人以其个人财产对企业债务承担无限责任的经营实体。 根据上述定义,下列选项中叙述正确的是( )。
A. 李某以个人积蓄出资办厂,后企业经营不善,无法偿付到期债务,债权人追至李某家里,要求其家人替李某偿还债务
B. 小明患有小儿麻痹症,但不影响他成为个人独资企业的投资人
C. 晓辉,15岁,头脑灵活,利用多年的“压岁钱”出资成立个人独资企业
D. 因香烟利润丰厚,龙某决定成立个人独资企业专卖自家土制香烟
[判断题]“不可为量数:”为是介词,量数是动词。
A.正确
B.错误
[判断题]1 作业人员进入含有六氟化硫电气设备的室内时,入口处若无六氟化硫气体含量显示器,应先通风15min,并检测六氟化硫气体含量是否合格,禁止单独进入六氟化硫配电装置室内作业。——
A.正确
B.错误
[简答题]《铁路客运运价规则》(铁运〔1997〕102号)规定,迟交票款、运费、杂费时从应收该项费用之<--NRC-->起至付款日止,每迟交一日,按迟交总额的1%核收运输费用迟交金。
[单项选择]混制好的芯砂应在()小时内用完。
A. 0.5
B. 3
C. 12
[判断题]青铜器西周中期以后尊仍然流行
A.正确
B.错误
[判断题]安全教育培训的不落实或流于形式,不会导致安全技术措施和安全管理措施的不到位或不落实。( )
A.正确
B.错误
[单项选择]葡萄糖注射液的变色,主要与以下哪一项外的因素有关:()
A. 溶液的PH值
B. 灭菌温度
C. 灭菌时间
D. 葡萄糖原料的纯度
[判断题] 使用切割器具破拆时,要平稳操作、直线切割,切割器具前方可以站人辅助。
A.正确
B.错误
[填空题]高速铁路电力设备维修,对所有密封设备(GIS柜气室内设备、干式变压器、干式互感器、低压塑壳开关、微断开关、UPS等)只检测,不维修,发现密封设备内部问题应<--NRC-->。
[单选题]牙周膜的功能
A.支持功能
B.营养功能
C.感觉功能
D.形成功能
E.以上都是
[单选题]一个端子柱上,允许最多上( )线头并用垫圈隔开。
A.1个
B.2个
C.3个
D.4个
[简答题]閩土非甚磽確民亦不綿力薄材而食谷必轉於近省甚哉煙草之為害烈也田萊一頃三穀而七煙市煙之利逾穀且十倍樹煙之勞殺穀且十倍民以告窳絀與而赢取煙葉之苦澤下毒其壤數年不能成菜茹雖欲反而樹稼其道無繇殖者滋庶食者滋眾民利而玩之監司恬而狎之迾禁不設若天之無凶年也
嗟乎天下方穰穰以思罌粟之禁於此瑣且尾者則何暇議去夫不審利害之原而苟以大小權之固也罌粟大而煙草細也樹罌粟者使民食而死樹煙草者使民不食穀而死死一也何大與細之分古者萍氏有酒幾今亦禁燒鍋夫酒以成賓嘉之禮賓主百拜而後敢酬醋以道天命其下窮民冬非酒不燠然而有逊禁者害穀甚也今煙草無酒之利而有酒之害酒害穀有浚煙車害穀無涘無禁得乎或日閩民赖是久矣迮而禁之不能而適為恐猲受赇者地是擅吏資而奪民利也禁不如榷榷當如洋藥十而稅其三無厚利則止矣噫葸慎怯耍之臣聞益帑則孰敢動了者以為害穀而重困之也瞍者以為利國而不可去也則禁不得行適助之增重耳且昔之禁罌粟其病亦足以奪民而擅吏然忍志禁之者愛民以政不以小惠也夫借君相之勢誅组草茅且不能則何以為政愚以為煙草之禁政在守令而司以者老鄉先生吏無得與與者格無禁何資之擅下令之歲已栽者不芟明年無蒔蒔以番薯蓣足以代三年而臘毒盡則壤可稼矣何利之奪詔之無殼之害而動其戒心犯禁三畝者伏通衢五畝捶十畝罰白金五兩二十畝官笞之沒其地入裡校室導同疇除煙草者三畝一升醴五畝一簞羹十畝一丈布二十畝白金二兩三年以覘閩田五年以閩倉之穀
[单选题]专责监护人( )兼做其他工作。
A.可以
B.根据工作需要可
C.不得
D.在全部停电时可

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