热门试题:
[单项选择]P(A)=0时,表示事件()
A. 可能发生
B. 极可能发生
C. 不可能发生
D. 在一次抽样中不会发生
E. 已经发生
[单项选择]根据美国临床实验室标准委员会规定,药敏实验结果报告中,“Ⅰ”代表( )
A. 敏感
B. 轻敏
C. 中介度
D. 耐药
E. 以上都不对
[单选题]员工自()起参加日常考核。
A.入职之日
B.入职次月
C.转正
D.入职满三个月
[单选题]( )是不能提高淬透性的合金元素。
A.铬
B.锰
C.钴
D.以上都不可以
[判断题]吊柱型号、规格、防腐措施符合设计要求,锈蚀面积不超过 25% 。当采用圆吊柱时,腕臂底座处应采取防扭转及滑动措施。
A.正确
B.错误
[单项选择]The solution works only for couples who are self-employed, don’t have small children and get along ____________ to spend most of their time together.
A. so well
B. too well
C. well as
D. well enough
[单选题]院前急救三点一线的呼叫网络顺序是
A.急诊科一急救中心-急救现场
B.急救中心-急救现场-急诊科
C.急救现场一急救中心-急诊科
D.急救现场一急诊科一急救中心
E.急诊科一急救现场一急救中心
[单选题]《价规》中,带运、押运包裹的运价里程按( )计算。
A.最短径路
B.指定径路
C.实际径路
D.近径路
[单选题]对于中小容量电动机来说,多用( )进行短路保护。
A.纵差动保护
B.电流速断保护
C.熔断器
D.断路器
[多选题]经检测,裂纹长度不大于( )mm且深度不大于( )mm时,使用白粉笔圈划故障部位,并在距裂纹()mm范围内标注“#”及“()”标识。
A.50
B.0.6
C.100
D.磨修
[单选题]56.(90425)金属材料的工艺性能是( )。(1.0分)
A.A、耐酸性
B.B、抗氧化性
C.C、可锻性
D.D、热膨胀性
[判断题]装置开车时,燃料油循环一般在侧线开正常后才进行。
[多选题]常用的电缆敷设方式,除直埋外,还包括(____)。
A. 隧道或电缆沟敷设
B. 桥架敷设
C. 水底敷设
D. 排管敷设
[单选题] 使用氧乙炔设备时,操作人员必须按规定穿戴劳动保护用品,其他人员应远离喷嘴前方,防止烧伤。乙炔瓶不得靠近热源和电器设备。乙炔瓶与明火的距离不得小于()m。
A.5
B.8
C.10
D.15
[多项选择]甲在投标某施工项目时,为减少报价风险,与乙签订了一份塔式起重机租赁协议。协议约定,甲中标后,乙按照协议约定的租金标准向甲出租塔式起重机,如甲方未中标,则协议自动失效。该协议是()。
A. 既未成立又未生效合同
B. 附条件合同
C. 已成立但未生效合同
D. 有效合同
E. 附期限合同
[单选题]It is impossible to__________the news unless you read the newspaper everydav.
A.100k up in
B.keep up with
C.put up with
D.catch up
[单项选择]现金漏损率是指现金漏损与( )之间的比率。
A. 存款总额
B. 贷款总额
C. 库存现金
D. 存款准备金
[单项选择]在主城区从事网约车经营的车辆采用增压发动机的,排量在()及以上。
A. 1.4T
B. 1.5T
C. 1.6T
[单项选择]
NAC’s (Network Access Control) role is to restrict network access to only compliant endpoints and (66) users. However, NAC is not a complete LAN (67) solution; additional proactive and (68) security measures must be implemented. Nevis is the first and only comprehensive LAN security solution that combines deep security processing of every packet at 10Gbps, ensuring a high level of security plus application availability and performance. Nevis integrates NAC as the first line of LAN security (69) . In addition to NAC, enterprises need to implement role-based network access control as well as critical proactive security measures—real-time, multilevel (70) inspection and microsecond threat containment.
(67)()
A. crisis
B. security
C. favorable
D. excellent
[填空题]严禁在道心、( )上行走,不准脚踏钢轨面、道岔连接杆、尖轨等。
[单项选择]腰俞麻醉的解剖标志是:()
A. 第二骶骨棘突
B. 第三骶骨棘突
C. 第四骶骨棘突
D. 骶骨角
E. 骶裂孔
[判断题]辙叉心、辙叉翼轨面剥落掉块,长度超过30mm、深度超过6mm时,属重伤。
A.正确
B.错误
[单选题]吸收塔的设计中,若填料性质及处理量(气体)一定,液气比增加,则传质推动力()。
A.增大
B.减小
C.不变
D.不能判断
[单项选择]Which of the following statements is NOT true according to the passage
A. Color probably has an affect on us which we are not conscious of.
B. Yellow fire engines have caused many bad accidents in some advanced communities.
C. People exposed to pure blue start to breathe more slowly.
D. The psychology of color is of some practical use.
[单项选择]
Airport baggage screeners in the USA, displaying seized chain saws, machetes and knives, (21) travelers to check their luggage for offensive objects before boarding a (22) .
Officials of the Transport Security Administration (TSA) (23) that since February 2002 more than 7.5 million (24) items had been seized. They included 50,000 box cutters-- a (25) said to be used by the Sept. 11, 2001 hijackers --and 1,437 firearms as (26) as 2.3 million knives.
The TSA officials told a news conference most people with (27) items in their bags intended no malice but advised (28) to consult the website www. tsatraveltips.usa for advice on what to leave behind when (29) a trip.
Since the Sept. 11 attacks screeners have confiscated seemingly (30) items like nail clippers and cigarette lighters (31) passengers.
But some carry more obviously (32) items. Chain saw
A. pictured
B. displayed
C. published
D. disagreed
[判断题]轮系中轴线的位置会发生改变的齿轮,叫行星轮。
[单选题]使用钳形电流表测量,应保证钳形电流表的( )与被测设备相符。
A.量程
B.规格
C.电压等级
D.参数
[单选题]自耦变压器一般除有高、中压自耦绕组外,还带有三角形接线的低压绕组,以减小零序电抗和改善波形。
A.A.对
B.B.错
[简答题]变压器的运行电压超过或低于额定电压值时,对变压器有什么影响?
[简答题]Warum hat er sich nicht an seine Freunde gewandt ,als er in Schwierigkeiten war
[单项选择]果树、蔬菜等带土移栽比未带土移栽的成活率高,主要原因是保护了()。
A. 叶
B. 枝
C. 芽
D. 幼根和根毛
[判断题](86334)( )检衡车是检测车辆机能的特种车辆,是车辆静态实载法的一种检衡装备。( )(1.0分)
A.正确
B.错误
[单选题]应力单位是( )。
A.kg/cm2
B.kg/mm2
C.N/cm2
D.N/mm2
[填空题]中国居民膳食宝塔共分五层,其中第三层为()食物。
[单选题](单选题)1940年11月,中共在华中成立华中总指挥部,叶挺任总指挥,刘少奇任政治委员,主要领导华中的( )。
A.八路军
B.新四军
C.八路军和新四军