热门试题:
[判断题]LAC33338电容器大量滲油时允许短时投入电容器。( )
A.正确
B.错误
[简答题]已知某连接曲线半径R=250m,曲线长K=45m,求此连接曲线两股钢轨的长度差及两股钢轨的长度(7分)[铁总高级工题库/45607]
解(0.5分):
曲线股钢轨长度差Δl=1500K/R=1500×45/250=270㎜=0.27m (2分)
曲线内股钢轨长度=K-长度差/2=45-0.27/2=44.865m (1.5分)
曲线外股钢轨长度=K+长度差/2=45+0.27/2=45.135m (1.5分)
[多选题]动火作业,是指能()。
A.A.直接产生明火的作业
B.B.间接产生明火的作业
C.C.包括熔化焊接、切割、喷枪等
D.D.包括喷灯、钻孔、打磨、锤击、破碎、切削等
[单项选择]()利用PMU数据计算机组调速系统和励磁系统的动态行为和性能参数,从而为机组参数校核提供更为精确的数据,为并网机组考核管理机构提供评价考核依据。
A. 电网运行动态监视
B. 电网扰动识别
C. 并网机组在线监测
D. 低频振荡监视与分析
[单项选择]下列哪一项不属于一般慢性炎症的变化特点
A. 炎症灶主要为淋巴细胞、浆细胞和单核细胞
B. 常有上皮细胞增生
C. 持续时间短
D. 常有腺体和实质细胞增生
E. 炎症介质参与
[填空题]堆垛火灾扑救设置水枪阵地时,应与堆垛保持( ),防止堆垛倒塌伤人。
[单选题]银行发放境外贷款资金原则上是用于企业境外的()。
A.并购贷款
B.证券投资
C.债务偿还
D.生产经营活动
[单选题] 钢的淬火处理可提高其()。
A.硬度
B.韧度
C.耐腐蚀性
[单项选择]超声成像中,下列组织结构属于典型低回声组织的是()
A. 脾
B. 钙化组织
C. 骨骼
D. 脂肪组织
E. 肺
[单选题]血过机呈:( )
A.橙色
B.绿色
C.蓝色
D.黑色
[多选题]施行常用制动时,单阀缓解量,每次不得超过()。(CCBII、法维莱型制动机除外)
A.50kpa
B.30kpa
C.20kpa
D.10kpa
[单项选择]Nationally, an ageing population is a problem. But locally it can be a boon. The over-50s control 80% of Britain"s wealth, and like to spend it on houses and high-street shopping. The young "generation rent", by contrast, is poor, distractible and liable to shop online.
People aged between 50 and 74 spend twice as much as the under-30s on cinema tickets. Between 2000 and 2010 restaurant spending by those aged 65-74 increased by 33%, while the under-30s spent 18% less. And while the young still struggle to find work, older people are retiring later. During the financial crisis full-time employment fell for every age group but the over-65s, and there has been a rash of older entrepreneurs. Pensioners also support the working population by volunteering: some 100 retirees in Christchurch help out as business mentors.
Even if they wanted to, most small towns and cities could not capture the cool kids. Mobile young professionals cluster, and greatly prefer to cluster in London. Even supposed meccas like Manchester are ageing: clubs in that city are becoming members-only. Towns that aim too young, like Bracknell and Chippenham, can find their high streets full of closed La Senzas (a lingerie chain) and struggling tattoo parlours.
Companies often lag behind local authorities in working this out. They are London-obsessed, and have been slow to appreciate the growing economic heft of the old—who are assumed, often wrongly, to stick with products they learned to love in their youth. But Caroyln Freeman of Revelation Marketing reckons Britain could be on the verge of a marketing surge directed at the grey pound, "similar to what we saw with the pink". The window will not remain open forever: soon the baby boomers will start to ail, and no one else alive today is likely to have such a rich retirement.
Meanwhile, with the over-50s holding the purse strings, the towns that draw them are likely to grow more and more pleasant. Decent restaurants and nice shops spring up in the favoured haunts of the old, just as they do in the trendy, revamped boroughs of London. Latimer House, a Christchurch furniture store full of retro clothing and 1940s music, would not look out of place in Hackney. Improved high streets then entice customers of all ages.
Indeed, gentrification and gerontification can look remarkably similar. Old folk and young hipsters are similarly fond of vinyl and typewriters, and wander about in outsized spectacles. Some people never lose their edge.The ageing population can be locally a boon in Britain in that ______.
A. old folks hold 80% of Britain"s wealth
B. older people spend more money on high-street shopping
C. older people tend to buy big houses than rent houses
D. the elderly like shopping online
[单项选择]当发现招标文件中有不确定之处并有可能据此索赔时,可报低价争取中标,再寻找索赔机会。这种招标策略称之为()。
A. 谋求长远发展战略
B. 以廉取胜
C. 以改进设计取胜
D. 以退为进
[单项选择]我国《中小学教室换气卫生标准》规定教室内空气中C02最高允许浓度为
A. 0.05%(500pp
B. 0.10%(1000pp
C. 0.15%(1500pp
D. 0.20%(2000pp
E. 0.25%(2500pp
[判断题]电务(通信)段应加强对其他施工单位施工的监督和配合,制定施工计划,加强施工全过程监督。
A.正确
B.错误
[单项选择]]上腹疼痛伴进行性加重的黄疸,最可能的疾病是()
A. 消化性溃疡
B. 胆囊炎
C. 胰头癌
D. 胰腺炎
E. 慢性胃炎
[单项选择]SWIFT银行识别代码的第5、6位代表()。
A. 银行代号
B. 国家代号
C. 方位代号
D. 分行号
[单选题]使用电器设备时。如发现有人触电,要及时( ).
A.抢救
B.切断电源
C.切断电源再进行抢救
D.送医院
[单选题]在GPS载波相位测量中,接收机始终能够准确测量的是( )
A.整周计数
B.卫星与测站间的距离
C.不足一周的小数部分
D.传播时间
E.略
F.略
G.略
H.略
[多选题]室外消防给水系统按用途不同可分为()等类型。
A.生产.生活.消防合用给水系统
B.生产.消防合用给水系统
C.生活.消防合用给水系统
D.独立的消防给水系统
[单项选择]某临时使用的测量仪器通常应采用( )方式。
A. 融资租赁
B. 经营租赁
C. 转让租赁
D. 担保租赁
[单项选择]目前使用的防病毒软件的作用是 (59) 。
A. 清除已感染的任何病毒
B. 查出已知名的病毒,清除部分病毒
C. 清除任何已感染的病毒
D. 查出并清除任何病毒
[单选题]依据《中国南方电网有限责任公司基建安全管理办法(Q/CSG2053041-
2020)》第二十四条规定:公司基建工程实行施工机具“八步骤”管理。( )应当按照国家有关规定采购、租赁、验收、检测、发放、使用、维护和管理施工机械、特种设备,建立施工设备安全管理制度、安全操作规程及相应的管理台帐和维保记录档案。
A.建设单位
B.施工单位
C.监理单位
D.运行部门
[单选题]-A-D-024 5 2 3
关于硫化亚铁较少的部位,下列选项正确的是( )。
A. 分馏塔塔顶
B. 分馏塔塔底
C. 分馏塔塔顶回流罐
D. 低压分离器
[多选题]属于活塞式压缩机填料漏气检查处理事项的是( )。
A.更换密封圈
B.更换活塞杆
C.更换密封圈弹簧
D.更换气阀
[多项选择]对于病原体检测的血清学实验,错误的有
A. 一般要在病程早期和晚期分别采血标本2~3份检查
B. IgM的检出表明原发性感染
C. 感染后即可检出抗体
D. 适于疾病的早期诊断
E. 单份血清诊断意义不大
[单项选择]对分包商,主要通过分包合同明确双方的( ),保证分包商能及时地按质按量地完成合同责任。
A. 法律义务关系
B. 分包责任关系
C. 责、权、利关系
D. 利益分配关系
[判断题]商用集中告警系统监控接入设备与隧道内中继设备监控模块之间采用RS485光纤MODEM连接。( )
A.正确
B.错误
[单选题]检查带有压力的管子、细小管接头螺母、( )以下螺母以及对光洁度要求较高或引有镀层的零件时,禁止锤击。P90T399
A. M10
B. M12
C. M14
[单选题]信号微机监测系统中开关量信息扫描周期不大于( )。
A. 100ms
B. 200ms
C. 250ms
D.300ms
[单选题]我国多年平均降水( )毫米左右。
A.100
B.640
C.2000
D.4000
[多选题]近一年多来由美国次贷危机引发的金融危机迅速在全球蔓延,在危机面前,人们应该积极主动应对,化危为机。下列名言中符合意识能动性原理的是( )。
A.信心比黄金更重要
B.我们唯一恐惧的就是恐惧本身
C.事不必难,知难不难
D.问题与解决问题的方法是同时产生的
[多选题] 新闻发布会要坚持正确的舆论导向,要做到哪几点
A. 坚持新闻真实性原则
B. 遵守新闻宣传纪律和有关规定
C. 维护国家安全
D. 维护社会稳定