热门试题:
[单选题]生产经营单位的( )有依法获得安全生产保障的权利,并应当依法履行安全生产方面的义务。
A.全体人员
B.在职人员
C.从业人员
D.生产人员
[判断题]人行过道及平过道的道路路面上,一般情况下普通线路不得放置钢轨。( )
A.正确
B.错误
[单选题]对限速(或允许速度)不大于( )的区段,可使用单人能随时撤出线路的轻便小型机具进行改道作业。
A.45km/h
B.55km/h
C.60km/h
D.80km/h
[单选题]23.尿毒症最早出现的症状是
A.厌食、恶心、呕吐
B.嗜睡、定向力障碍
C.咳嗽、胸痛
D.皮肤黏膜出血
E.血压升高
[填空题]液压泵在能量转换过程中必然存在功率损失,功率损失可分为( )和机械损失两部分。
[多选题]供配电监测系统对哪些参数进行监测( )。
A.变电室照明
B.电压、电流、功率因数
C.供电变压器温度
D.供配电系统二次继电保护
[多选题] 5G基带集中部署面临的挑战包括
A.A: CPRI接口数据大,所需光纤资源急剧增加
B.B: eCPRI接口可降低光纤需求,但AAU体积变大
C.C:机房供电能力要求高
[判断题]CIR在450MHZ工作模式,应能查询通讯录。
[判断题]灭火救援战评工作应当遵循“发扬民主、实事求是。
A.正确
B.错误
[单选题]保证基层指战员()、探亲休假等权益,不得插手涉及基层指战员切身利益的敏感问题,不得挪用、截留、克扣、拖欠基层的经费和物资,违者必须依法依纪严肃查处。
A.请假外出
B.日常休息
C.日常娱乐
D.婚恋自由
[多选题]陈某因涉嫌故意伤害罪被某公安局决定取保候审移送起诉后,因取保候审期限即将届满,检察机关又重新作出了取保候审决定,陈某在检察机关决定取保候审期间,未经批准,多次擅自离开所居住的市、县,公安机关应当:( )
A.提出变更强制措施意见,连同有关材料一在交检察机关
B.立即自行变更强制措施
C.将陈某提请检察机关批准逮捕
D.作出没收保证金决定,并通知检察机关
[单选题]施工作业地点在站外,距离进站信号机(反方向进站信号机)小于 820m时,现场防护人员应站在距进站信号机(反方向进站信号机)(??? )m附近;
A.20
B.50
C.800
D.820
[单选题]单个人员和建制单位出列、入列,通常用跑步,( )步以内用齐步,1 步用正步,或者按照指挥员指定的步法执行 。
A.2
B.3
C.4
D.5
[单选题]【单选题】(4.28②)关于借款/垫资给合作方,以下哪种行为是恰当的?
A.不给合作方借款或垫资
B.给合作方垫资,约定后期垫资本金、利息在项目预期收益中扣回
C.为了合作方良好关系的维系,给合作方借款偿还前期债权债务,可不收取利息
D.给合作方垫资,不稀释合作方股权
[单项选择]石灰氮()
A. 13
B. 25
C. 23
D. 22
[单项选择]运输计划性最强的运输方式是()。
A. 铁路
B. 公路
C. 航空
D. 水运
[判断题]如果线路是用金属杆塔或钢筋混凝土杆架设,可用金属杆塔本身或钢筋混凝土杆内的钢筋作为避雷线的接地引下线。( )
A.正确
B.错误
[填空题]进口的特种设备,应当向()负责特种设备安全监督管理的部门履行()义务。
[填空题]A
The cost-effectiveness and flexibility offered by large-format digital imaging has also helped diversify the number of out-of-home media. Out-of-home was a concept that didn’t have a name until digital technology gave it one. Instead of hand- painting a bus or shelter, a self-adhesive graphic can be digitally imaged in a short amount of time and applied with relative ease. Advances in the durability and weatherability of inks and vinyl substrates keep the images looking sharp for a longer time.
B
Other technologies contribute to improvements in outdoor advertising. Satellite lighting systems allow outdoor companies to remotely adjust billboard lighting to change with seasons and daily light differences. For instance, lights can be programmed to turn off at the end of an advertiser’s contract, while two-way communication lets outdoor companies know when there is no power.
C
Another electronic device barcode-identification tracks an advertiser’s camp
[单选题]同时承受径向力和轴向力的轴承是( )。
A.向心轴承
B.推力轴承
C.向心推力轴承
D.拉力轴承
[判断题]低压电气工作,应采取措施防止误入相邻间隔、误碰相邻带电部分。( )
A.正确
B.错误
[单项选择]单根更换混凝土枕,把新枕运到更换的地点,曲线散布在(),复线放在线路外侧妥当的位置。
A. 上股
B. 下股
C. 左股
D. 右股
[单项选择]中餐宴席的流程是()
A. (1)酒水;(2)冷菜;(3)热菜;(4)随饭菜
B. (1)冷菜;(2)热菜;(3)随饭菜;(4)水果
C. (1)酒水;(2)随饭菜;(3)热菜;(4)水果
D. (1)冷菜;(2)随饭菜;(3)热菜;(4)水果
[单项选择]Text
An animal species becomes extinct when it fails to produce enough young in each generation to keep pace with the death-rate. We can (26) from fossil evidence in rocks that many living species have become extinct over the millions of years (27) life began. It is a natural (28) and extinction is the (29) of any animal that has specialized too far to change (30) its environment changes, or has to compete with a better- (31) and more powerful animal. (32) remarkable technical developments during the past few centuries, man has destroyed or (33) destroyed some species by killing them (34) such a rate that they couldn’t produce enough offspring, or by completely changing their natural environment at surprising speed.
A number of examples can be given of the way (35) which natural environments are being rapidly changed—Amazonia, for instance. There is every (36) that m
A. after
B. until
C. since
D. before
[单选题]在特别潮湿或周围均属金属导体的地方工作时,如在金属容器或水箱等内部,行灯的电压不准超过( )V。
A.12
B.24
C.36
D.48
[单选题]据统计,火灾中死亡的人有80%以上属于( )。
A.被火直接烧死
B.烟气窒息致死
C.跳楼或惊吓致死
[单项选择]Internet上的主机系统经常被“黑客”光顾,所谓“黑客”含义是( )。
A. 一批专门以闯入别人的电脑系统为乐的不速之客
B. 一批经常穿着黑衣服的网络使用者
C. 经过特别训练的网络间谍
D. 经过系统管理员批准的系统使用者
[单项选择]下列()不是货币政策工具。
A. 公开市场业务
B. 税率
C. 法定准备金率
D. 再贴现率
[判断题]主从JK触发器在CP=1期间,存在一次性变化()。
A.正确
B.错误
[判断题]追诉期限从犯罪之日起计算;犯罪行为有连续或者继续状态的,从犯罪行为终了之日
起计算。
A.正确
B.错误