热门试题:
[判断题]《线路设备状态评定评分标准》规定,现存曲线磨耗轻伤钢轨,每延长100m扣2分。
A.正确
B.错误
[判断题]因为选煤厂的集中控制系统具有严格的闭锁关系,因此对系统的抗干扰能力的可以不做要求。
A.正确
B.错误
[判断题]自动空气开关正常工作时电磁脱扣器的动作线圈串联在开关回路中。
A.正确
B.错误
[单项选择]一般注射液的pH应为()
A. 3~8
B. 3~9
C. 4~9
D. 4~10
E. 5~10
[单选题](2016真题)某总建筑面积为5200㎡的百货商场,其营业厅的室内净高为5.8m,所设置的自动喷水灭火系统的设计参数应按火灾危险等级不低于( )确定。
A.中危险Ⅱ级
B.严重危险Ⅱ级
C.严重危险I级
D.中危险I级
[单项选择]女性患者,28岁,农民。反复发作性腹痛、腹泻2年,发作时每天大便5~6次,有黏液,间歇期有时有便秘,伴全身乏力、失眠。查体:轻度贫血貌,左下腹可扪及条索状物。大便镜检:红细胞2~5/HP,白细胞20~25/HP。最可能的诊断是()
A. 急性菌痢
B. 慢性菌痢
C. 直肠癌
D. 肠结核
E. 结肠癌
[单选题]高压电气设备停电检修时,为防止检修人员走错位置,误入带电间隔及过分接近带电部分,一般采用()进行防护。
A.绝缘台
B.绝缘垫
C.遮拦
[多选题]薪酬管理的基本原则包含哪些?()
A.公平性
B.竞争性
C.激励性
D.经济性
E.合法性
[单项选择]你定义了一个对象类型myOBJ,要基于该类型来创建表tab1,语句为()。
A. CREATE TABLE tab1 OF myOBJ
B. CREATE TABLE myOBJ OF tab1
C. CREATE TABLE tab1 AS myOBJ
D. CREATE TABLE tab1 TYPE OF myOBJ
[单项选择]脑卒中偏瘫患者进行起、立床训练,其训练强度通常为
A. 30分钟/次,2次/天
B. 10分钟/次,2次/天
C. 60分钟/次,2次/天
D. 60分钟/次,1次/天
E. 30分钟/次,1次/天
[多选题]施工升降机主要由( )组成。
A.金属结构
B.驱动机构
C.附着
D.安全保护装置
E.电气控制系统
[单项选择]冲洗技术没有实际效果的管理方法是()
A. 启动液添加量的管理
B. 显影液pH的管理
C. 显影液温度的管理
D. 显影液补充量的管理
E. 定影液混入的管理
[判断题] 雷电后造成架空线路产生高电压冲击波,这种雷电称为直击雷。( )
A.正确
B.错误
[多选题]物业服务企业实施质量管理应注意( )。
A.加强人员培训
B.质量管理系列标准一定要适合企业自身
C.培育“乐于发现问题”的质量管理文化
D.质量审核要着重制定惩罚措施
[判断题]车站调度交换机查询MPU状态时只能查询左侧MPU状态,无法查询右侧MPU状态,但设备使用正常,可能是两块MPU间网络通信线不好。
A.正确
B.错误
[判断题]周向磁化就是用周向电流对工件进行磁化。
A.正确
B.错误
[单选题]相机镜头焦距越长,视角越()?
A.大
B.小
C.不变
[单选题]某正线曲线半径≤250m,用20m弦测量,圆曲线正矢连续差的日常保持容许偏差管理值为( )mm。
A.6
B.8
C.10
D.12
E.14
F.16
[单项选择]被告人甲某多次在陇海铁路沿线趁夜晚无人之际,盗剪铁路正在使用中的架空裸铜载波通讯线,然后予以变卖。共盗剪通讯线10000余米,价值12000多元,累计阻断通讯话路280路,其中有10条是铁路行车调度话路,危害了行车安全,阻断通讯时间100小时,造成直接经济损失2万余元。甲某构成何罪
A. 盗窃罪
B. 破坏公用电信设施罪
C. 破坏交通设施罪
D. 破坏公用电信设施罪和破坏交通设施罪数罪并罚
[单选题]通电导体在磁场中所受的力是_____。
A.电场作用力
B.磁场作用力
C.磁电作用力
D.电流吸引力
[单选题]电气控制线路测绘前要检验被测设备是否有电,不能( )。
A.切断直流电
B.切断照明灯电路
C.关闭电源指示灯
D.带电作业
[多选题]当进行停电作业时,27.5和35kv设备的带电部分距作业人员无防护栅小于( )mm,有防护栅小于( )mm,均须停电
A.350
B.500
C.600
D.1000
[单选题]三相四线制供电的相电压为200V,与线电压最接近的值为( )V。
A.250
B.280
C.346
D.380
[判断题]草坪无虫害、无杂草、无枯黄,草坪的覆盖度应达到90%,集中空秃不得超过5㎡。
A.正确
B.错误
[单项选择]下列项目中, 企业可以用现金支付的是( )。
A. 支付个人劳动报酬
B. 偿还银行小额借款
C. 支付前欠某单位1200元贷款
D. 返还某单位多付货款1500元。
[单选题]代理税务代保管资金业务, 是指农业银行为( ) 开设税务代保管资金的存储和结算账户, 开设二级账簿分类办理税务代保管资金的收付业务, 为作为税务代保管资金查询用户的上级税务机关, 提供对基层税务机关税务代保管资金账户的实时查询、 监控服务的一项金融服务性产品。
A.基层税务机关
B.市税务局
C.省税务局
D.国税总局
[单项选择]《长安志》是记述唐都长安宫城、坊市及属县的专著,北宋宋敏求(1019~1079)撰。书中说“棋布栉比,街衢绳直,自古帝京未之有也。”也有人感慨长安城是“六街鼓歇行人绝,九衢茫茫空有月”,这一现象反映出唐都长安()
A. 城市布局整齐
B. 城市功能单一
C. 城市规模过大
D. 经济功能突出
[单选题]注册执业人员未执行法律法规和工程质量强制性标准,造成重大安全事故的,( )
A.停止执业
B.5年不予注册
C.10年不予注册
D.终身不予注册
[单选题]计算机发展的年代划分下列排序正确的是______。
A.电子管、晶体管、集成电路、超大规模集成电路
B.晶体管、电子管、集成电路、超大规模集成电路
C.电子管、晶体管、超大规模集成电路、集成电路
D.晶体管、电子管、超大规模集成电路、集成电路
[单选题]It is everywhere,as visible as it is vilified.From car parts to crisp packets,plastic has suffuse the Earth,and beyond-in 1969 Neil Armstrong planted a nylon Stars and Stripes on the moon.More than 8bn tonnes has been produced since the 1950s,enough to wrap the continents in cling film four times over.1 Untold tonnes end up as irretrievable ocean flotsam,which sunlight and salt fragment into microscopic pieces that attract toxins and may be gulped by creatures that become seafood Plastic weighs heavily on the mind,too.2 In Britain hatred of plastic unites the right-wing Daily Mail,the leftie Guardian,and the queen,who has banned plastic straws from her castles.But hold on.The little scientists know about plastic suggests that although it is the most noticeable pollutant it is far from the most harmful.Using less is at best a partial solution.a bet-ter answer is to collect more-especially in Asia The effects of plastic on nature and human health are hard to gauge.Most polymers are chemically inert.That makes them durable.3 It also makes them less likely to be a health risk to humans and beasts.As a pollutant,their impact is much lower than less tangible menaces.By one estimate,the environmental and social costs of plastic run to 9 139bn a year,chiefly from the greenhouse gases produced in its production and transport.The figure for farming is$3trn.Fertiliser run-off alone causes S 200bn-800bn worth of damage to the ocean,compared with S 13bn from plastic marine litter.Then look at the alternatives.A cotton tote bag must be used 131 times before its carbon footprint improves on that of a throwaway carrier bag This does not stop plastic from being a problem.4 Prohibition makes sense in poor places like Bangladesh and Kenya that lack proper waste-management systems.It is less useful in tidy France where rubbish collection works smoothly.It would be more effective for rich countries to shore up their recycling industries.They may have little choice in any case A carbon tax may spur recycling,which is less energy-intensive than producing virgin plastic Mandating minimum recycled content in plastic containers,as California has since 1991,is also a useful tool.Governments could exempt second-hand polymers from value-added tax;after all,the tax has already been paid on the fresh source material 5.Among the ten biggest plastic polluters,all but two are in developing Asia.Together,they account for two-thirds of the plastic spewed into the ocean.Of these,only China could afford Western-style waste-management in the near future.Others are just waking up to the problem;before plastic began piling up,it reasonably seemed less of a priority for governments.Bangladesh may be able to copy India which,despite its 1.3bn people,falls outside the top ten thanks to armies of ragpickers.The rest,like Vietnam or Thailand,may be too wealthy for raddiwallahs,yet too poor for sophisticated rubbish collection.The rich world should focus its attention-and resources,including charity-on chivvying them along.That is the surest way to stem the plastic tide
1选?
A.But bans and penalties on plastic bags in rich countries may be better for the conscience than for the environment
B.But by itself,the West will not solve the problem
C.It also makes them less likely to be a health risk to humans and beast
D.For some 79%of the plastic produced over the last 70 years has been thrown away,either into landfill sites or into the general environment
E.Nine in len Europeans wory about ts impat on eosystems thre in four fret that it can harm their own health
F.Only 9%was recydled 60%was dumped,mosty in aills s too often in the natural word
G.Researdn shows he wi De more pasic han tsh by weignt n he wold's oceans by 2050 and srawns are a major lador because the vast maoiy are never eydlede
[单项选择]上段胸髓位于( )
A. 与相应的椎骨平面相差2节
B. 与相应的椎骨平面相差1节
C. 与相应的椎骨平面相差3节
D. T10~12之间
E. T12~L1之间
[多选题]依据《工作票实施规范(发电、变电部分)》,以下关于动火工作票的填写规范说法正确的是( )。
A. 《一级动火工作票》、《二级动火工作票》仅在签发、允许动火栏目的填写要求不同
B. 动火工作票面无"安全交代"栏目,所以作业前工作负责人无需对作业人员进行安全交代并签名确认
C. 动火工作票由值班负责人填写接收时间并签名确认
D. 需重新确认安全条件、防火安全措施或测定可燃气体、易燃液体的可燃蒸汽含量时,由动火执行人、动火工作监护人在备注栏注明,并签名、填写日期及时间
[多选题]第一种工作票()时,可采用总工作票和分工作票。
A.所列工作地点超过两个
B.有两个及以上不同的工作单位(班组)在一起工作
C.工作时间较长
D.工作人数较多
[单选题]新购进的煤气监测报警仪( )。
A.购入后即可使用
B.需要到有检验资质的单位检验合格后再使用
C.不需要检验单位出具检验合格证
D.厂家有生产经营许可证,购入后可以不经检验投入使用
[判断题]遮断信号机和半自动闭塞 、 自动站间闭塞区段线路所通过信号机 ,设预告信号机。( )(技规第76条)
A.正确
B.错误
[单选题]企业为了筹措短期资金,在货币市场上发行在将来一定时期内偿付本息的凭证,这种凭证称为()。
A.商业票据
B.大额可转让定期存单
C.银行承兑汇票
D.期权