热门试题:
[单选题]在正常情况下,阀型避雷器中( )。
A.无电流流过
B.流过工作电流
C.流过工频续流
[单项选择]关系表中的每一横行称为一个( )。
A. 元组
B. 字段
C. 属性
D. 码
[单选题]1912年3月10日,袁世凯就任的职务是( )。
A. 总统
B. 皇帝
C. 正式总统
D. 临时大总统
[填空题]驻调度所(驻站)联络员必须与现场防护员、作业负责人保持联系,一旦<--NRC-->,防护人员应立即通知作业负责人停止作业,并立即组织作业人员下道避车。
[判断题]消防员管理贯彻依法管理,实行严肃的纪律、严密的组织,按照准现役、准军事化标准建设,以战斗力为标准,以提高能力素质为核心。( )
A.正确
B.错误
[单选题]电力主管部门应当保证铁路牵引用电以及铁路运营用电中( )负荷的电力供应。
A. 主要
B.专业
C.重要
D.一级
[判断题]安检在处理乘客事务时应服从车站站务人员的领导,听从指挥,不得有推诿拖拉行为。
A.正确
B.错误
[单选题] ( )是扑救精密仪器火灾的最佳选择。
A. 二氧化碳灭火剂
B. 干粉灭火剂
C. 泡沫灭火剂
D. 卤代烷灭火剂
[单选题]1.47 办理机动车业务时,可作为居民的身份证明的是________。
A.《临时居民身份证》
B.《居民身份证》补换领凭证
C.公安机关的户籍证明
D.《居民户口薄》
[判断题]消费品购买者大多是商品的外行( )
A.正确
B.错误
[单项选择]宋朝张先《木兰花》中云:“人意共怜花月满,花好月圆人又散”。下列诗句与题诗所含哲理相近的是()
A. 月满中秋夜,人人惜最明
B. 年年岁岁花相似,岁岁年年人不同
C. 但愿人长久,千里共婵娟
D. 年年今夜,月华如练,长是人千里
[单项选择] You have a server that runs Windows Server 2003 Service Pack 2 (SP2). You create an Automated System Recovery (ASR) backup of the server. You restart the server and receive a critical error. You need to restore the server by using ASR. What should you do first? ()
A. Start the computer by using Safe mode.
B. Start the server by using the ASR floppy disk.
C. Start the computer by using the Last Known Good Configuration option.
D. Start the server by using the Windows Server 2003 SP2 installation media.
[多选题]在劳动争议纠纷案件中,因用人单位作出 ( ) 等决定而发生劳动争议的,由用人单位负举证责任。
A.开除
B.辞退
C.解除劳动合同
D.减少劳动报酬
[单选题]在超过()深的基坑内作业时.向坑外抛掷土石应防止土石回落坑内.并做好防止土层塌方的临边防护措施。
A.1m
B.1.5m
C.2m
D.2.5m
E.略
F.略
[多选题]
班组安全生产考核方法有(____)。
A. 依据安全生产岗位责任进行考核
B. 按照领导的要求进行考核
C. 采取自评和互评相结合的方式进行考核
D. 以月度、季度和年度为周期进行考核
[单项选择]风险分解过程中,一般需要采用多种方法的组合进行分解,常用的组合是()。
A. 时间维、目标维和结构维
B. 时间维、结构维和因素维
C. 时间维、目标维和因素维
D. 目标维、结构维和因素维
[单项选择]对应安全电压36V,在矿井及多导电粉尘等场所,使用的行灯空载电压上限值为()V。
A. 29
B. 36
C. 43
D. 48
[多选题] ( ) 刚性架空接触网悬挂点的正线最大跨距:曲线、直线依次分别为( )m。
A.5~7
B.7~9
C.9~10
D.10~11
E.11~12
[单项选择]下面不属于活动目录分区的是()。
A. 配置分区
B. 架构分区
C. 可选的应用程序分区
D. 域控制器分区
[填空题]我国《国防法》将国防活动分为()、()和()三部分。
[判断题]Q351~SQ356型曲(直)刃水平滚刀式切丝机,按巻烟工艺规范和烟厂的制丝工艺要求,可分别对烟片、烟梗进行切丝加工,在切丝机上设定切制物料的切丝宽度(切叶丝机:0.5~1.5mm 切梗丝机:0.1~0.30mm,实现对物料切削加工。( )
A.正确
B.错误
[判断题]地下民用建筑的疏散走道和安全出口的门厅,其顶棚、墙面和地面的装修材料应采用A级装修材料。
A.正确
B.错误
[判断题]在有限空间内进行涂装作业,因通风设备故障,可开启井盖进行自然通风后,经准入检测气体合格后,进入有限空间内进行作业。
A.正确
B.错误
[单选题]下列哪一项气体泄露,一般不会发生爆炸?( )
A.煤气
B.氯气
C.天然气
D.氨气
[单项选择]专用机械装置的构成,不包括()
A. X线管
B. 摄影床
C. X线管专用支架
D. 诊视床
E. 体层专用床
[单选题]进入边学边练是否需要检查更新视频:
A.是
B.否
[填空题] When it comes to getting ahead, experts say, the ABCs of business should include a P, for politics, as in office politics.
Dale Carnegie (36)________as much more than 50 years ago: Hard work alone doesn’’t (37)________career advancement. You have to be able to sell yourself and your ideas, both publicly and behind the scenes. Yet, despite the obvious (38)________of engaging in office politics, a better job, a raise, praise, many people are still unable or (39)________to play the game. People (40)________that office politics involves some manipulative behavior. But politics (41)________from the word "polite". It can mean lobbying and forming associations. It can mean being kind and helpful, or even trying to please your (42)________, and then expecting something in return.
In fact, today, experts define office politics as proper (43)________used to pursue one’’s own self-interest in the workplace. (44)________________, not just in large companies, but in small workplaces a
[单项选择]安全密封的锁紧作用是靠()起作用的。
A. 压滑阀和止回阀
B. 补偿活塞
C. 密封活塞
D. 旁通阀
[单选题]控制盘和低压配电盘、配电箱、电源干线上的工作应填用()工作票。
A.第一种
B.第二种
C.带电作业
D.电力电缆第二种
[单选题]单独设置的操作平台应设置供人上下、踏步间距不大于( )的扶梯。
A.350MM
B.400MM
C.450MM
D.500MM
[多选题]2.4GHz频段WiFi和5GHz频段WiFi各有什么优点和缺点?()
A.2.4GHz信号优点:频率较低,覆盖范围相对较大,穿过障碍物能力较强
B.2.4GHz信号缺点:2.4GHz是公开频段,干扰较大;频宽最高只能达到40MHz,连接速率最高达到300Mbps
C.5GHz信号优点:80MHz频宽下连接速率可以达到433Mbps,160MHz频宽下连接速率可以达到867Mbps
D.5GHz信号缺点:频率较高,覆盖范围相对较小,穿过障碍物的能力较弱
[多选题]当验明确已无电压后,应立即()。工作地段各端和工作地段内有可能反送电的各分支线都应接地。
A.将检修的高压配电线路和设备接地并三相短路
B.电缆及电容器接地前应逐相充分放电
C.星形接线电容器的中性点应接地、串联电容器及与整组电容器脱离的电容器应逐个多次放电
D.装在绝缘支架上的电容器外壳也应放电
[单选题]CCBⅡ制动机“第四步闸”自阀移至“制动”位,均衡风缸减压100kPa,列车管减压到均衡风缸压力的±10kPa,制动缸增压到( )kPa;
A.230~250
B.110~150
C.230~300
[判断题]法兰垫片更换紧固螺栓时应从上到下逐步紧固螺栓
A.正确
B.错误
[单项选择]Pamela: Business has an interest in enabling employees to care for children, because those children will be the customers, employees, and managers of the future. Therefore, businesses should adopt policies, such as day-care benefits, that facilitate parenting.
Lee: No individual company, though, will be patronized, staffed, and managed only by its own employees’ children, so it would not be to a company’s advantage to provide such benefits to employees when other companies do not.
In which one of the following pairs consisting of argument and objection does the objection function most similarly to the way Lee’s objection functions in relation to Pamela’s argument
A. New roads will not serve to relieve this area’s traffic congestion, because new roads would encourage new construction and generate additional traffic.
B. Humanity needs clean air to breathe, so each person should make an effort to avoid polluting the air.
C. Advertised discounts on products draw customers’ attention to the products, so advertised discounts benefit sales.
D. If people always told lies, then no one would know what the truth was, so people should always tell the truth.
E. (E) Human social institutions have always change so even if we do not know what those changes will be, we do know that the social institutions of the future will differ from those of the past.
[单项选择]下列没有错别字的一句是:
A. 按照上级布署,他们认真组织了一系列观摩课,师生们反应热烈。
B. 别看他俩在一起有说有笑的,其实是貌和神离。
C. 我们都迫不急待地想知道,究竟是谁能赢得最后的胜利。
D. 这哥儿俩,一个标新立异,一个循规蹈矩,差别太大了!