热门试题:
[单选题]穿越线圈回路的磁通发生变化时,线圈两端就产生( )。
A.电磁感应
B.感应电动势
C.磁场
D.电磁感应强度
[单项选择]一个2岁的男婴，近4日来发热38～39℃，烦躁不安，精神不振，喷射性呕吐，2～3～／日，体检：精神萎靡，目光凝视，心音纯整，有力，呼吸粗糙，双扁桃体Ⅱ°充血，肝，脾不大，颈轻度抵抗，克氏征（++），巴氏征（+），为确诊首先应做何种检查（）
A. 血细胞计数和分类
B. 盐水灌肠查大便
C. 腰穿检查脑脊液
D. 结核菌素试验
E. 头颅CT
[单选题] 液压系统中,油泵是属于( )。
A.动力元件
B.控制元件
C.执行元件
D.辅助元件。
[判断题]（）润滑油比润滑脂的密封性好
A.正确
B.错误
[单选题]及时发现溢流并迅速关井，可以 ( ) 。 ①制止溢流继续发生 ②防止被迫放喷 ③防止井喷 ④降低压井钻井液密度
A.①②③
B.①②④
C.②③④
D.①③④
[单项选择]女婴，1岁，反复患肺炎。胸部X线检查显示肺血多，左心房及左心室增大，主动脉结增宽，可能的疾病是（）
A. 房间隔缺损
B. 室间隔缺损
C. 动脉导管未闭
D. 法洛四联症
E. 肺动脉狭窄
[简答题]公司实行（ ）领班、带班、应急值班管理。
[不定项选择题]To live in the United States today is to gain an appreciation for Dahrendorf′s assertion that social change exists everywhere. Technology, the application of knowledge for practical ends, is a major source of social change.
Yet we would do well to remind ourselves that technology is a human creation; it does not exist naturally. A spear or a robot is as much a cultural as a physical object. Until humans use a spear to hunt game or a robot to produce machine parts, neither is much more than a solid mass of matter. For a bird looking for an object on which to rest, a spear or robot serves the purpose equally well. The explosion of the Challenger space shuttle and the Russian nuclear accident at Chernobyl drive home the human quality of technology; they provide cases in which well-planned systems suddenly went haywire and there was no ready hand to set them right. Since technology is a human creation, we are responsible for what is done with it. Pessimists worry that we will use our technology eventually to blow our world and ourselves to pieces. But they have been saying this for decades, and so far we have managed to survive and even flourish. Whether we will continue to do so in the years ahead remains uncertain. Clearly, the impact of technology on our lives deserves a closer examination.
Few technological developments have had a greater impact on our lives than the computer revolution. Scientists and engineers have designed specialized machines that can do the tasks that once only people could do. There are those who assert that the switch to an information-based economy is in the same camp as other great historical milestones, particularly the Industrial Revolution. Yet when we ask why the Industrial Revolution was a revolution, we find that it was not the machines. The primary reason why it was revolutionary is that it led to great social change. It gave rise to mass production and, through mass production, to a society in which wealth was not confined to the few.
In somewhat similar fashion, computers promise to revolutionize the structure of American life, particularly as they free the human mind and open new possibilities in knowledge and communication. The Industrial Revolution supplemented and replaced the muscles of humans and animals by mechanical methods. The computer extends this development to supplement and replace some aspects of the mind of human beings by electronic methods. And it′s the capacity of the computer for solving problems and making decisions that represents its greatest potential and that poses the greatest difficulties in predicting the impact on society.
The author considers the introduction of the computer as a revolution mainly because _____________.
A.it gives rise to mass production
B.it can do the tasks that could only be done by people before
C.it has helped to switch to an information technology
D.it has a great potential impact on society
[判断题]货币制度属于国家主权范畴,并具有科学性。
A.正确
B.错误
[多选题]接触网作业用的车梯和梯子应（ ）。
A.结实
B.平稳
C.轻便
D.稳固
[多项选择]企业物流过程为（）。
A. 供应物流与生产物流
B. 采购物流
C. 销售物流
D. 逆向物流
[单选题]( )的既有提速线路,客运专线,宜采用CTCS-2级列控系统。[322000000]
A.100km/h~160km/h
B.160km/h~200km/h
C.200km/h~250km/h
D.250km/h~300km/h
[单选题]《情僧录》《风月宝鉴》《金陵十二钗》是同一部名著的名字，这部名著是()。
A.《西厢记》
B.《红楼梦》
C.《金陵春梦》
D.《镜花缘》
[多项选择]外资进入密集，且外资企业出口比重高的行业有( )
A. 机电产品
B. 文化用品
C. 家用电器
D. 电子通讯设备
E. 服装鞋帽
[单选题]关系模型数据库管理系统中所谓的关系是指()。
A.各条记录中的数据彼此有一定的关系
B.一个数据库与另一个数据库之间有一定的关系
C.数据模型符合满足一定条件的二维表格式
D.数据表中各个字段彼此有一定的关系
[单选题]（ ）是网点现场管理的第一责任人。
A.网点负责人
B.大堂经理
C.内勤行长
D.柜面经理
[单选题]工作任务单由（ ）许可，一份由工作负责人留存，一份交小组负责人。
A.值班调控人员
B.工作许可人
C.工作负责人
D.运维负责人
[单选题]乳腺脓肿通常是由于感染了
A.金黄色葡萄球菌
B.甲型溶血性链球菌
C.克雷白菌
D.表皮葡萄球菌
E.以上都不是
[单项选择]
癃的特点是
A. 小便不利，点滴而短少，病势较缓
B. 小便频急
C. 尿道灼痛
D. 小便闭塞，点滴不通，病势较急
E. 小便淋漓不尽
[多选题]爆炸物可能放置的地方有（）。
A.A.垃圾桶
B.B.花坛
C.C.盆景
D.D.无主行李
[单项选择]对首次进口的栽培介质，进口单位办理审批时，应同时将经特许审批进口的样品每份( )公斤，送国家质检总局指定的实验室检验，并由其出具有关检验结果和风险评估报告。
A. 0.5～1
B. 1～1.5
C. 1.5～5
D. 5～7
[判断题]E4301焊条焊接时的发尘量与电流关系不大,与电压关系较大。
A.正确
B.错误
[单选题]党的十五大载入史册的标志是______。( )
A.在认识上突破姓资姓社的束缚
B.提出来社会主义市场经济理论
C.高举邓小平理论的伟大旗帜
D.提出社会主义初级阶段的理论
[单项选择]引起脾、肾、肺梗死最常见的原因是（）。
A. 动脉受压阻塞
B. 动脉痉挛
C. 动脉栓塞
D. 血栓形成
E. 动脉粥样硬化
[单项选择]施工项目部按照工程验评范围划分，执行三级自检制度，做好隐蔽验收签证记录、工程验评记录及质量问题管理台账，内容真实，数据准确并应与工程进度保持同步，并按规定报审，属于（）阶段质量管理工作。
A. 施工策划
B. 施工准备
C. 施工
D. 施工验收
[单项选择]当俯仰度超过机头向上25度或13度机头向下时，除了姿态、速度、速度趋势、航向、高度和垂直速度以外的所有参数都消失。超过多少度时，一个大红箭头指示过大的姿态并表示出减小这一姿态的机头运动的方向（）
A. 22
B. 25
C. 30
[判断题]16号车钩钩身断面近似圆形，减少了钩身与车钩支撑座之间的转动阻力，钩尾框座从板接触面为球面，可围绕车体纵向中心线相对钩尾框作360度回转。 （ ）
A.正确
B.错误
[单项选择]小乔木在园林中可用作（）
A. 花坛
B. 园路树
C. 花径
D. 地被
[单选题]关于票据行为的代理，下列说法不正确的是（ ）。
A.票据当事人必须有委托代理的意思表示
B.代理人应在票据上表明代理关系
C.没有代理权而以代理人名义在票据上签章的，应当由签章人承担票据责任
D.代理人超越代理权限的，应当由代理人承担全部票据责任
[单选题]（2018年）某企业处置一台旧设备，原价为 23万元，已计提折旧 5万元。处置该设备开具的增值税专用发票上注明的价款为 20万元，增值税税额为 2.6万元，发生的清理费用为 1.5万元，不考虑其他因素，该企业处置设备应确认的净收益为（ ）万元。
A.-2.9
B.0.5
C.20
D.2
[多项选择]经常项目主要反映一国的贸易和劳务往来状况，包括( )。
A. 贸易收支
B. 企业信贷
C. 劳务收支
D. 直接投资
E. 单方面转移
[单选题]SF6配电装置发生防爆膜破裂时，应停电处理，并用（____）擦拭干净。
A.汽油或丙酮
B.煤油或丙酮
C.汽油或酒精
D.汽油或香蕉水
[多选题]4.91.第91题GOOSE可以传输以下()信息。
A.遥控
B.跳闸
C.启动失灵、联闭锁
D.部分模拟量
[单选题]5GNR的信道带宽利用率最高可达
A.0.9828
B.0.9028
C.0.9255
D.0.9732
