热门试题:
[单选题]线路标志,按计算公里方向设在线路左侧。双线区段须另设线路标志时,应设在列车运行方向( )。
A.左侧
B.右侧
C.线路中心上方
[单项选择]下列疾病需要严密隔离的是
A. 霍乱
B. 艾滋病
C. 破伤风
D. 疟疾
E. 斑疹伤寒
[单项选择]史蒂文克尔和约翰杰迈尔提出了( )。
A. 领导者参与模型
B. 领导替代理论
C. 途径一目标理论
D. 情境领导理论
[单项选择]Scientific tradition demands that scientific papers follow the formal progression :method first, results second, conclusion third. The rules permit no hint that, as often happens, the method was really made up as the scientist went along, or that accidental results determined the method, or that the scientist reached certain conclusions before the results were all in, or that he started out with certain conclusions, or that he started doing a different experiment.
Much scientific writing not only misrepresents the workings of science but also does a disservice to scientists themselves. By writing reports that make scientific investigations sound as unvarying and predictable as the sunrise, scientists tend to spread the curious notion that science is infallible. That many of them are unconscious of the effect they create does not alter the image in the popular mind. We hear time and again of the superiority of the "scientific method". In fact, the word "unscientific" has almost becom
A. "I was just fooling around one day when it occurred to me that..."
B. "In view of recent evidence for...theory, it seemed advisable to..."
C. "For no good reason at all I hit on a way to solve the puzzle that..."
D. "No one can imagine how we were surprised at what happened..."
[填空题]等会列车时， 不准关闭空气压缩机， 并应按规定显示___。
[判断题]非运营期间,施工最早开始时间应在所有列车出清施工作业区段、停电区段和安全防护区段后,最晚结束时间应在运营开始前 20 min。( )
A.正确
B.错误
[判断题]库停或站停客车插拔外接电源时严禁带电作业。（ ）
A.正确
B.错误
[单项选择]什么是早期Ⅰ期食管癌：（）
A. 病变范围只侵及粘膜层，无转移
B. 病变范围只侵及部分肌层
C. 病变范围侵及肌层全层或有外侵
D. 病变范围只侵及部分肌层，有局部淋巴结转移
E. 有远处淋巴结转移
[判断题]( )运动物体与支承之间的接触点是在不断地变化的摩擦叫滑动摩擦 。( )
A.正确
B.错误
[单选题]中央苏区第五次反“围剿”失利,中央红军于1934年( )开始长征。
A..7月
B..8月
C..10月
[判断题]醇类化合物是浓香型白酒中重要呈味物质,它的总含量高于有机酸含量。 ( )
A.正确
B.错误
[单项选择]船长下达弃船的命令后，（）应按（）完成各自的弃船准备工作。
A. 轮机长/船长指令
B. 船长/应急部署
C. 全体船员/船长指令
D. 全体船员/应急部署
[单选题]关于客运站经营者的安全生产工作会议和安全例会频次,下列说法中正确的是( )。
A.每季度至少召开一次安全生产工作会议,每月至少召开一次安全例会
B.每季度至少召开二次安全生产工作会议,每月至少召开二次安全例会
C.每季度至少召开三次安全生产工作会议,每月至少召开三次安全例会
D.每季度至少召开四次安全生产工作会议,每月至少召开四次安全例会
[单项选择]排粪造影检查不能测量：
A. 肛直角
B. 肛上距
C. 肛管长度
D. 乙耻距
E. 结肠长度
[填空题]正在使用的胰岛素，应在室温下储存，开启后最长可以保存（），且不能超过保质期。
[单项选择] Physical Features of the Country
The Map
The map on the adjoining page represents the portion of the North American continent which is at the present time occupied by the people of the United States.
As you look upon the map imagine that you are in the air, looking down upon it as from a balloon, and take notice of what you see. On the east and on the west are the shores of two oceans. That on the east is the Atlantic. The Pacific is on the west.
The Lake Country
Toward the north is an immense tract of nearly level land, covered with forests, all of which are filled with water and form lakes, some large and others small. This land, though level, is high, so that there is a very considerable though gradual descent from the lakes to the ocean. The lakes are kept constantly full by the rains and by the melting of the snows, and the surplus waters flow off in one vast channel, northward and eastward to the sea.
One of the large lakes, t
A. Y
B. N
C. NG
[判断题]运营过程中，由车站站长及以上层级根据客流、设备、车站实际运作情况决定是否售卖预制单程票。
A.正确
B.错误
[单项选择]针状焦的机械强度比普通石油焦（）
A. 高
B. 低
C. 相等
D. 不确定
[单项选择]若发生致损事故，其可能造成的最大损失值是______
A. 损失期望值
B. 损失概率
C. 损失频率
D. 损失幅度
[单项选择]内源性医院感染的原因是
A. 患者自身免疫力增强，对本身固有的微生物感受性降低，正常菌群发生易位
B. 患者自身免疫力降低，对本身固有的微生物感受性增加，正常菌群发生易位
C. 患者自身免疫力降低，对本身固有的微生物感受性降低，正常菌群发生易位
D. 患者自身免疫力增强，对本身固有的微生物感受性增强，正常菌群发生易位
E. 患者自身免疫力增强，对条件致病菌感受性降低，正常菌群发生易位
[判断题]南京的“辟邪”，很可能受到了亚述神兽的影响。
[单选题]危货箱同一车限装同一( )、同一铁危编号的危险货物。
A.性质
B.类项
C.品名
D.包装
[单选题]艾滋病的病原体是
A.人类免疫缺陷病毒
B.单纯疱疹病毒
C.巨细胞病毒
D.人类乳头状瘤病毒
E.EB病毒
[单选题]两点之间的电位之差称为（）。
A.电动势
B.电势差
C.电压
D.电压差
[单选题]单选"实施党纪处分,应当按照规定程序经_____讨论决定,不允许任何个人或者少数人擅自决定和批准。( )
A.党代会
B.规定程序
C.党组织集体
D.党员代表"
[判断题]首次登记小家电的企业，由当地的检验检疫机构派员从生产批次中抽样并封存，由企业送至当地检验检疫部门进行型式试验，方可取得小家电产品的型式试验报告。( )
[多项选择]反洗钱行政主管部门和其他依法负有反洗钱监督管理职责的部门、机构从事反洗钱工作的下列哪种行为会受到行政处分( )。
A. 未按照规定对职工进行反洗钱培训
B. 泄露因反洗钱知悉的国家机密、商业机密或者个人隐私
C. 未按照规定设立反洗钱专门机构或者指定内设机构负责反洗钱工作
D. 违反规定进行检查、调查或者采取临时冻结措施
E. 违反规定对有关机构和人员实施行政处罚
[判断题] 生产经营单位应当在有较大危险因素的生产经营场所和有关设施、设备上, 设置明显的重大危险源标志。
A.正确
B.错误
[多选题]当发生自然灾害类突发事件时需要向上级汇报的内容有(1.0 分)
A..事件发生时间、地点、对运营的影响程度
B..事件概况(人、物的基本情况等)
C..已使用的备品备件情况
D..现场先期处置情况
E..跟进情况报告
[单项选择]
Until the late 1940s, when television began finding its way into American homes, companies relied mainly on print and radio to promote their products and services. The advent of television (1) a revolution in product and service. Between 1949 and 1951, advertising on television grew 960 percent. Today the Internet is once again (2) promotion. By going online, companies can communicate instantly and directly with prospective customers. (3) on the World Wide Web includes advertising, sponsorships, and sales promotions (4) sweepstakes, contests, coupons, and rebates. In 1996 World Wide Web advertising revenues (5) ＄ 300 million.
Effective online marketers don’t (6) transfer hard-copy ads to cyberspace. (7) sites blend promotional and non-promotional information indirectly delivering the advertising messages. To (8) visits to their sites and to create and (9) customer loyalty, companies change inform
A. merely
B. virtually
C. hardly
D. actually
[单选题]010322分配阀作用部是根据()的压力变化来控制均衡部的动作，从而达到控制制动机及制动、保压、缓解等作用。
A.均衡风缸
B.制动管
C.作用管
D.双室风缸
[单选题]电子时间继电器( )KT其功用是电阻制动时,初减压时间达到25~28 s后,使均衡风缸通过中继阀向制动管充气,缓解列车制动力。
A. 452
B. 453
C. 454
D. 456
[单选题]《中华人民共和国特种设备安全法》规定：特种设备安装、改造、修理竣工后，安装、改造、修理的施工单位应当在验收后( )日内将相关技术资料和文件移交特种设备使用单位。
A.5
B.15
C.20
D.30
[单选题]根据《建设工程安全生产管理条例》 ，施工单位应当在施工现场入口处、施工起重机械、临时用电设施、脚手架、出入通道口、楼梯口、电梯井口、孔洞口、桥梁口、隧道口、基坑边沿、爆破物及有害危险气体和液体存放处等危险部位，设置明显的（ ）。
A.安全提示标志
B.安全警示标志
C.安全警告标志
D.安全指示标志
[填空题]MK系列全液压钻机由（）、（）和（）三大部分组成。
[判断题]凡是能与空气中的氧或其他氧化剂起燃烧化学反应的物质，均称为可燃物
A.正确
B.错误
[判断题]人工拆除施工作业面的孔洞可以不封闭,只要有标识即可
A.正确
B.错误
