热门试题:
[单选题]动车组实行计划预防修,检修方式以( )为主,主要零部件采用专业化集中修。
A.换件修
B.专业修
C.预防修
D.均衡修
[多选题]轮轴段修时,下列哪些情况须退卸轴承( )。
A.轴向游隙大于0.75mm
B.电焊作业导致电流通过轴承
C.受水浸或火灾的轴承
D.发生热轴轴承
[多项选择]慢性化脓性中耳乳突炎分型包括()
A. 单纯型
B. 肉芽肿型
C. 胆脂瘤型
D. 弥漫型
E. 坏死型
[多选题]微机线路保护装置对直流电源的基本要求是(____)。
A. 额定电压220、110V
B. 允许偏差-10%~+10%
C. 纹波系数不大于5%
D. 额定容量大于50W
[判断题]雷达标牌的颜色可以任意设定,没有任何规则限制。( )
A.正确
B.错误
[单选题]坚持创新在我国现代化建设全局中的核心地位,把()自立自强作为国家发展的战略支撑。
A.科技
B.国防
C.安全
D.经济
[单选题]婴儿开始有主动进食要求的月龄是()
A.4~5个月
B.5~6个月
C.7~8个月
D.8~9个月
E.9~10个月
[单选题]4.1. 抢救有脉搏无呼吸的触电伤员,则每6..秒吹一口气,每分钟吹气( )次。
A.9.
B.1.0
C.1.1.
D.1.2.
[单项选择]下列哪种病人排出的尿液有烂苹果味( )
A. 尿道炎
B. 膀胱炎
C. 急性肾炎
D. 糖尿病酮症酸中毒
E. 慢性肾炎
[单选题] 下列不属于常用的风险处置工具的是( )
A.风险回避
B.风险转移
C.风险预测
D.风险自留
[判断题] 冶金企业中,当设备更新或检修时存在必须带煤气作业的情况,这类作业属特殊的危险作业。
A.正确
B.错误
[多选题]下面关于完全竞争市场的叙述正确的是( ) (多选题)(2分)
A.任何一个市场成员所占的市场份额都微不足道
B.不同企业的同类产品之间在性能、价格等方面有差异
C.无论企业向市场提供多少数量的商品,平均年收益和边际收益都不随着数量变动而变动
D.企业不会在平均成本的最低点上进行生产,市场价格往往高于边际成本,资源得不到最好的利用
E.生产者与消费者对市场信息都能充分了解
[单选题]《中华人民共和国安全生产法》规定,生产经营单位的特种作业人员必须按照国家有关规定,经专门的安全作业培训,取得(),方可上岗作业。
A.特种作业操作资格证书
B.相应资格
C.职业技能等级证书
[单选题]某曲线,250<R≤350,作业验收时用20m弦测量,圆曲线正矢连续差的容许偏差管理值为( )mm。
A.5
B.10
C.15
D.20
E.22
F.24
[单选题]未经煤矿企业同意,任何单位或者个人不得在煤矿企业依法取得土地使用权的有效期间内在该土地上种植、养殖、取土或者修建( )物、构筑物
A.建筑
B.工厂
C.商店
[判断题]甲设计单位中标后,即使认为此工程利润太小不愿自行完成设计任务,也不得将该工程分包给甲、乙、丁三家设计单位。( )
A.正确
B.错误
[单选题]马克思和恩格斯进一步发展和完善了英国古典经济学理论是( )
A.辩证法
B.历史观
C.劳动价值论
D.剩余价值论
[单选题]批准大型飞机公共航空运输承运人从事特定公共航空运输运行的许可的文件是:
A.运行合格证
B.运行规范
C.运行手册
D.飞行手册
[单选题]柴油机运转中,由于各道主轴承磨损程度不同,引起曲轴:_____ (264159:第02-02章 柴油机主要部件及检修)
A.变形
B.整体变形
C.局部变形
D.整体与局部变形
[判断题]《高速铁路有砟轨道线路维修规则》规定:线路周期检修、成段保养应采用大型养路机械进行全面起拨道、捣固,并进行稳定。
A.正确
B.错误
[多选题]《安全生产法》规定,以下( )是从业人员的安全生产权利。
A.有权了解其作业场所和工作岗位存在的危险因素、防范措施及事故应急措施
B.有权对本单位安全生产工作中存在的问题提出批评、检举、控告
C.有权拒绝违章指挥和强令冒险作业
D.发现直接危及人身安全的紧急情况时,有权停止作业或者在采取可能的应急措施后撤离作业场所
[判断题]LZC30187装有氖灯泡的低压验电器可以区分火线(相线)和地线,也可以验出交流电或直流电;数字显示低压验电器除了能检验带电体有无电外,还能寻找导线的断线处。( )
A.正确
B.错误
[单选题]心交感神经末梢释放???
A.去甲肾上腺素
B.血管紧张素
C.肾上腺素
D.乙酰胆碱
E.组胺
[单选题]变电站基建工程办理设备移交手续前,由建设管理单位(部门)和运维单位共同( ),形成工程遗留问题记录,落实责任单位及整改计划,运维单位跟踪复验。
A.协商移交手续
B.确认工程遗留问题
C.办理移交手续
D.完成后续工作
[单选题]作业现场的( )和安全设施等应符合有关标准、规范的要求,作业人员的劳动防护用品应合格、齐备。
A.A.安全装置
B.B.境卫生
C.C.生产条件
D.D.技术措施
[单项选择]()不会造成行走系统阻力过大。
A. 轮胎气压不足
B. 离合器打滑
C. 轮毂轴承缺油
D. 车轮与轮轴配合间隙过小
[判断题]电气化区段在挂有接触网导线的线路上,对不能采用人力制动机防溜的车辆,应使用人力制动机紧固器或木止轮器防溜。
A.正确
B.错误
[单项选择]哪类属于高温高湿作业()
A. 轧钢、炼钢、炼铁作业
B. 印染作业
C. 建筑、修路夏季施工
D. 印刷作业
E. 缝纫作业
[不定项选择题]根据下列内容,回答206-210题。
When my family moved to America in 2010 from a small village in Guangdong, China, webrought not only our luggage, but also our village rules, customs and culture. One of the rules isthat young people should always respect eiders. Unluckily, this rule led to my very first embarrass-ment in the United States.
I had a part-time job as a waiter in a Chinese restaurant. One time, when I was serving foodto a middle-aged couple, the wife asked me how the food could be served so quickly. I told herthat I had made sure they got their food quickly because ! always respect the elderly. As soon as Isaid that, her face showed great displeasure. My manager, who happened to hear what I said, tookme aside and gave me a long lecture about how sensitive Americans are and how they dislike thedescription "old". I then walked back to the table and apologized to the wife. After the couple heardmy reason, they understood that the problem was caused by cultural differences, so they laughed
and were no longer angry.
In my village in China, people are proud of being old. Not so many people live to be seventyor eighty, and people who reach such an age have the most knowledge and experience. Youngpeople always respect older people because they know they can learn from their rich experience.
However, in the United States, people think "growing old" is a problem since "old" shows thata person is going to retire or that the body is not working well. Here many people try to keep them-selves away from growing old by doing exercises or jogging, and women put on makeup, hoping tolook young. When I told the couple in the restaurant that I respect the elderly, they got angry be-cause this caused them to feel they had failed to stay young. I had told them something they didn'twant to hear.
After that, I changed the way I had been with older people. It is not that I don't respect themany more; I still respect them, but now I don't show my feelings through words.
By Jack
Jack brought the couple their food very fast because___________.
A.the manager asked him to do so
B.he respected the elderly
C.the couple wanted him to do so
D.he wanted more pay
[判断题]干式变压器在结构上可分为以固体绝缘包封绕组和不包封绕组。(
A.正确
B.错误
[单项选择]
男性,58岁。胸闷痛反复发作二年,加重一日,现胸闷如窒而痛,气短,喘憋,心烦易怒,咯黄痰,头昏沉,大便干,夜寐不安,舌暗红苔黄腻,脉滑数弦。
根据上述临床表现及病史,按照中医的辨证。理论,考虑诊断及辨证分型为()
A. 痰热瘀阻之胸痹
B. 痰浊壅塞之胸痹
C. 气滞血瘀之胸痹
D. 肝胆火盛之胸痹
E. 阴虚阳亢之胸痹
[单项选择]高炉内部工作空间的形状称为高炉炉型。现代高炉由()、炉腹、炉腰、炉身和炉喉五段组成。
A. 炉顶
B. 炉内
C. 炉外
D. 炉缸
[单项选择]
2014年元月7日,享年107岁的香港知名实业家、慈善家邵逸夫逝世。自1985年以来,邵逸夫通过邵氏基金会,向内地教育捐赠巨款达47.5亿港元,建设各类项目6013个。被冠名为“逸夫楼”的建筑物,遍布祖国大地。他用伟大的人格力量,打造了一望无垠的慈善王国。赢得了社会的广泛尊重。这启示我们()。
①人生价值就是个人对社会的贡献
②要在个人与社会的统一中实现人生价值
③一个人的人生价值观决定他的人生轨迹
④只有投身于社会实践才有可能赢得社会的认可和尊重
A. ①②
B. ①③
C. ②④
D. ③④
[单项选择]According to Inglehart the frugality phenomenon________.
[单项选择]下列情况哪项不是全瓷冠修复的适应证
A. 过小牙
B. 前牙轻度错位
C. 牙列缺失
D. 牙体缺损
E. 釉质发育不全