热门试题:
[多项选择]在电气设备上悬挂标示牌是用来()
A. 警告作业人员不得接近设备的带电部分
B. 提醒作业人员在工作地点采取安全措施
C. 指明应检修的工作地点,以及警示值班人员禁止向某设备合闸送电
D. 介绍设备运行状态
[填空题]曹植前期的代表作是();后期的代表作是()。
[单项选择]《历史文化名城名镇名村保护条例》规定所有保护规划均由( )审批。
A. 上一级城乡规划主管部门
B. 国务院文物主管部门
C. 国务院建设主管部门
D. 省、自治区、直辖市人民政府
[单选题] B-B-B-003 4 2 3
判断下列地址属于C类地址的是( )。
A. 100.2.3.4
B. 192.10.20.30
C. 138.6.7.8
D. 10.100.21.61
[单项选择]股骨髁上骨牵引的应用哪一项是错误的:()。
A. 适用于伸直型股骨髁上骨折
B. 髋关节脱位也可采用
C. 穿针方向由内向外
D. 牵引量为体重的1/7
E. 应防止感染
[单项选择]《医疗机构管理条例》的执业要求中规定,医疗机构执业必须()
A. 遵守有关法律、法规、规章制度
B. 遵守有关法律、法规
C. 遵守有关法律、法规、医疗技术规范
D. 遵守有关法律、法规、向患者承诺的公约
E. 遵守有关法律、法规、医疗道德
[单选题]警报信号为( )
A.连续短声
B.一长三短声
C.一长一短声
D.三长一短声
[单项选择]心肌的异长调节通过改变下列哪个因素调节心脏的泵血功能
A. 肌小节初长
B. 肌钙蛋白活性
C. 肌浆游离Ca2+浓度
D. 心肌收缩能力
E. 横桥ATP酶活性
[判断题]转动设备添加润滑油时,润滑油只经过“五定”方就可加入至油箱中( )。
A.正确
B.错误
[判断题]三相交流转辙机表示电路中应采用反向电压不小于500V,正向电流不小于2A的整流元件。
A.正确
B.错误
[单选题]各类罐车在电气化铁路区段发生泄漏时,( )不得登上车顶处理,速将其牵引到非电气化铁路区段处理。
A.A.任何人
B.B.公安人员
C.C.货运人员
D.D.调车人员
[单项选择]患者女,68岁,因“天气寒冷,心房颤动,诱发心力衰竭”住院治疗。卧床休息时突然出现肢体抽搐、右侧肢体呈弛缓性瘫痪,并出现严重感觉障碍伴失语。既往有风湿性心脏病致二尖瓣狭窄病史30年,高血压病史18年,心房颤动病史12年。查体:P92次/min,R20次/min,BP180/110mmHg;嗜睡状;HR110次/min。为患者提供的护理措施中不恰当的是()
A. 密切观察患者的意识、瞳孔、生命体征变化
B. 保持患者肢体于良肢位并定时更换体位
C. 遵医嘱低盐饮食,观察患者进食情况,必要时鼻饲
D. 注意观察药物的治疗效果和不良反应
E. 做好生活护理,热水袋保暖
[单选题]Ⅰ类(CATI)运行:决断高不低于60m(200ft),能见度不小于( )或跑道视程不小于550m 的精密进近和着陆。A. 200m
B. 400m
C. 600m
D. 800m
A.A
B.B
C.C
D.D
[单选题]正确选用劳动防护用品是保证企业员工劳动过程中安全和健康的重要措施之一。企业选用劳动防护用品的前提是()。
A.符台标准
B.穿戴舒适
C.外形美观
[单项选择]混悬剂中药物粒子的大小一般为
A. <0.1nm
B. <1nm
C. <10nm
D. <100nm
E. 500nm~1000nm
[单选题]电缆试验结束,应对被试电缆进行(),并在被试电缆上加装临时接地线,待电缆尾线接通后才可拆除,
A.短路,
B.开路,
C.接地,
D.充分放电,
[判断题]起重指挥信号应简明、统一、畅通,分工明确。
A.正确
B.错误
[单选题]在初步设计中进入转化器第一层的工艺气体的氧气含量是( )。
A.6.10%
B.7.10%
C.8.20%
D.8.69%
[单项选择]建设工程施工合同的适用范围,不包括( )。
A. 规模小的工程建设项目
B. 按照传统的“设计—招标—建造”模式实施的项目
C. 发包人提供设计的工程建设项目
D. 复杂程度高的工程建设项目
[单选题]各类作业人员应被告知其作业现场和工作岗位存在的危险因素、防范措施及( )。
A.A.事故紧急处理措施
B.B.紧急救护措施
C.C.应急预案
[单项选择]患儿,5岁。多次患肺炎,查体无发绀,左缘第2肋间闻及响亮的连续性机器样杂音,伴有震颤,脉压增宽,有周围血管搏动征。以下诊断最正确的是()
A. 肺动脉口狭窄
B. 室间隔缺损
C. 动脉导管未闭
D. 法洛四联症
E. 完全性大动脉错位
[多选题]二次回路通电或耐压试验前,应( )后,方可加压。
A.通知调控人员
B.通知运维人员和其他有关人员
C.派专人到现场看守
D.检查二次回路及一次设备上确无人工作
[单选题]车用消防泵进行真空密封性能试验时,1min内的真空降落值不应大于( )kPa。
A..1.5
B.2.6
C. 5
D. 15
[单选题]CPU检测到错误时,如果没有相应的错误处理OB,CPU将进入( )模式。
A.停止
B.运行
C.报警
D.中断
[单选题]2, 1,6,14, 40,108,()
A.288
B.296
C.304
D.312
[单选题]客室门具有防挤压功能,如果( )次未关好门,则此门报障碍物检知。
A.1
B.2
C.3
D.4
[单项选择]
THE HISTORY OF COMMUNICATION TECHNOLOGY
1 Communication technology influences the ways in which we think about the world.It changes the things we think about,the symbols we use to form and communicate ideas, and the arenas in which our thoughts develop.In the history of communication, there have been many
revolutionary technologies, among them the printing press in the fifteenth century and electronic media in the nineteenth century.
2 The development of writing was a major advancement in the ability to communicate over distances and to preserve information accurately.Writing conveyed knowledge of the arts and sciences, which provided foundations for other areas of investigation.However, before books and the printing press, written language was limited to a few clay tablets and parchment scrolls.It was not until books became available that writing made a major impact.For centuries,books were rare and expensive because each
A. Electronics became a standard subject taught in schools.
B. The discovery of electrons occurred during the period.
C. Writers of the period predicted the invention of computers.
D. The technology sent electrical signals along electrical wires.
[单项选择]
Brighton is a popular seaside town on the south coast of England. Not long ago, some policemen were very (21) . There (22) several serious accidents (23) by motorists driving too fast. The police started to set up a speed trap(速度监视器). They measured (24) of 88 yards on a straight road and watched to see (25) a car took to (26) that far. They knew that if a car took six seconds, it was traveling faster (27) the (28) limit of 30 miles an hour.
When the policemen were ready, they did (29) a hedge(树篱) and started to (30) passing cars. During their first half an hour, they caught five drivers. The policemen wrote down the (31) of each car and the name and address of the (32) . But for the next half an hour the policemen didn’t see anybody (33) too fast. They thought that this was very (34) . One of them drove a quarter of a mile along the road and saw two students (35) A. pilot
B. driver
C. rider
D. operator
[多选题]加载方案包括( )
A.试件的支承及加载模式
B.荷载控制方法
C.荷载分级、加载限值
D.持荷时间、卸载程序
[判断题]核查计量柜(箱)外观是否正常,封印是否完好,有异常现象拍照取证后转异常处理流程
A.正确
B.错误