热门试题:
[判断题]根据《民用航空安全检查规则》第22条, 民航安检机构设立单位应当按照民航局规定,建立并运行民航安检设备的使用验收、维护、定期检测、改造及报废等管理制度,确保未经使用验收检测合格、未经定期检测合格的民航安检设备不得用于民航安检工作。
A.正确
B.错误
[不定项选择题]下列关于时间序列的说法中，正确的有( )。
Ⅰ．趋势性时间数列是指按月统计的各期数值，随一年内季节变化而周期性波动的时间数列
Ⅱ．时间序列是指社会经济指标的数值按照时间顺序排列而形成的一种数列
Ⅲ．随机性时间数列是指由随机变量组成的时间数列Ⅳ．时间数列又称“时间序列”
A.Ⅱ、Ⅲ、Ⅳ
B.Ⅰ、Ⅲ、Ⅳ
C.Ⅰ、Ⅱ、Ⅳ
D.Ⅰ、Ⅱ、Ⅲ
[单选题]施工现场自备电源通常是( )。
A.南孚电池
B.发电机
C.铅蓄电池
D.直流不间断电源
[判断题]《中华人民共和国安全生产法》的制定目的是为了加强安全生产工作,杜绝生产安全事故,保障人民群众生命和财产安全,促进经济社会持续健康发展。
A.正确
B.错误
[判断题]高管人员违规积分管理办法中所指的高管人员主要包括省联社各部门助理（含）以上人员，各法人行社领导班子成员。
A.正确
B.错误
[单选题]以下哪项不是白癣的特点
A.多见于学龄儿童
B.毛发干枯无光泽
C.可形成永久性脱发
D.易在距头皮0. 3～0. 8cm处折断
E.病发根部有白色菌鞘包绕
[多选题]急性血源性化脓性骨髓炎治疗原则为（ ）
A. 增加全身抵抗力
B. 联合使用大量抗生素
C. 局部外固定
D. 病灶清除
E. 病灶冲洗引流
[多项选择]表示空气中水汽含量距离饱和程度远近的湿度参量有（）。
A. 绝对湿度
B. 相对湿度
C. 水汽压
D. 露点温度
E. 饱和差
F. 温度露点差
[单选题]在露天工作的轨道式起重机必须装设抗风制动装置和锚定装置。
A.正确
B.错误
[多选题]电子商业汇票系统城市处理中心系统出现重大故障，基本处置流程和方法为（）。
A.实施技术救治
B.业务应急处置
C.系统紧急切换
D.系统恢复和业务恢复
[填空题]GPS
A The Global Positioning System is a space-based triangulation system using satellites and computers to measure positions anywhere on earth. It is first and foremost a defense system developed by the United States Department of Defense, and is referred to as the "Navigation Satellite Timing and Ranging Global Positioning System" or NAVSTAR GPS. The uniqueness of this navigational system is that it avoids the limitations of other land-based systems such as limited geographic coverage, lack of continuous 24-hour coverage, and the limited accuracies of other related navigational instruments. The high accuracies obtainable with the Global Positioning System also make it a precision survey instrument. GPS Components: the Space Segment, the Control Segment, and the User Segment.
B The Space Segment of the system consists of the GPS satellites. These space vehicles (SVs) send radio signals from space. The GPS Operational Constellation consists of 24 satellites that orbit the earth in 12 hours. There are often more than 24 operational satellites as new ones are launched to replace older satellites. The satellite orbits repeat almost the same ground track (as the earth turns beneath them) once each day. The orbit altitude is such that the satellites repeat the same track and area over any point approximately each 24 hours (4 minutes earlier each day). There are six orbital planes (with four SVs in each), equally spaced (60 degrees apart), and inclined at about fifty-five degrees with respect to the
equatorial
(赤道的) plane. This constellation provides the user with between five and eight SVs visible from any point on the earth.
C The Control Segment consists of a system of tracking stations located around the world. The Master Control facility is located at Schriever Air Force Base (formerly Falcon AFB) in Colorado. These monitor stations measure signals from the SVs which are incorporated into orbital models for each satellites. The models compute precise orbital data and SV clock corrections for each satellite. The Master Control station uploads orbital data and clock data to the SVs. The SVs then send subsets of the orbital
ephemeris
(星历表) data to GPS receivers over radio signals.
D The GPS User Segment consists of the GPS receivers and the user community. GPS receivers change SV signals into position, speed, and time estimates. Four satellites are required to compute the four dimensions of X, Y, Z (position) and Time. GPS receivers are used for navigation, positioning, time distribution, and other research. Navigation in three dimensions is the primary function of GPS. Navigation receivers are made for aircraft, ships, ground vehicles, and for hand carrying by individuals. Precise positioning is possible using GPS receivers at reference locations providing corrections and relative positioning data for remote receivers. Surveying, geodetic control, and plate tectonic studies are examples.
E Time and frequency distribution, based on the precise clocks on board the SVs and controlled by the monitor stations, is another use for GPS. Astronomical observatories, telecommunications facilities, and laboratory standards can be set to precise time signals or controlled to accurate frequencies by special purpose GPS receivers. Research projects have used GPS signals to measure atmospheric parameters.
F At present the system consists of 24 satellites at an altitude of about 20,000 km having an orbital inclination of 55 degrees. The orbits are almost circular and it takes 12 hours for a satellite to complete a pass around the Earth. GPS signals are broadcast from a cluster of 24 or more earth orbiting satellites. Because the GPS signals are derived from the atomic frequency standards on board each satellite, they are widely used as a reference for time synchronization and frequency adjustment. The real time positioning accuracy of a single receiver is normally up to 100 meters horizontally and 150 meters vertically. However, various methods have been developed which enable much higher accuracy (centimeter level).
G There are a variety of different types of GPS receivers on the market for commercial and public use. Prices range from $500 to $30,000, reflecting the accuracy and capabilities of the instruments. For the general outdoorsman, a good GPS receiver should have 8 satellite tracking capability and be capable of receiving the GPS satellite signals through forest covering in northern Ontario shield area; for the professional user, a minimum 8 satellite tracking capability, high memory capacity, differential GPS capability, and resistance to signal weakening under forest covering is essential; for the professional surveyor requiring high level precision and accuracy capability, they should assess the project or application for which the technology is to be used with the help of an unbiased consultant, in order to determine the most cost effective and appropriate instrument.
H Small hand held navigational units at relatively low cost allow boaters and hikers to know their position within a few hundred meters. This accuracy is sufficient for recreational use. A hand held or similar mapping unit at mid-range price that is linked to a fixed broadcast base station. These units allow utility companies, municipalities and others to locate various items (telephone poles, waterlines, valves) with a positional tolerance of several meters. This is suitable for some Geographical Information Systems (GIS) mapping purposes.
I GPS technology offers numerous benefits to law enforcement agencies of all types. For some agencies, the navigational capabilities offered by GPS enhance efficiency and safety. These navigational applications can be used to support a variety of policing and criminal justice functions. Other agencies use GPS positioning technologies to carry out special operations or to provide enhanced personnel safety. For example, using computerized maps of their rights given by law, cooperated with GPS, aviation personnel can determine location, speed and time.
J The positioning capabilities offered by GPS may also contribute to the success of specialized law enforcement operations such as in controlling vehicles. One such program operated in Minneapolis led to a 60% reduction in auto theft after only one month. The automatic vehicle location systems can not only provide efficiency of response and help ensure officer safety, but also provide officer with accurate information concerning the best response route to an incident. What"s more, they can provide officers information that allows the closest patrol officers to be dispatched to a particular incident.
K Advanced Transportation Management Systems (ATMS) are heavily dependant upon GPS technology to provide data about the road system. GPS allows for law enforcement personnel to clear roadway blockages to ensure the safety of motorist. Most people associate law enforcement with the prevention, reduction, and prosecution of criminal activity. In fact, a large portion of local law enforcement resources are involved in facilitating the movement of people and vehicles in a safe manner. In conclusion, large-volume commercial applications such as cellular phones, personal communication systems, and in-vehicle navigation systems will fuel continued development of these technologies. What was ultimately the domain of the Department of Defense is rapidly becoming available for business, private, and general government use. Policing and public safety in general, will benefit from these market forces. It is clear that there are a number of GPS applications for policing.The Space Segment of GPS consists of many GPS satellites, which send radio signals from space.
[判断题]道岔用阿拉伯数字从车站两端由里向外依次编号。
[单选题]通力隔离开关分、合闸继电器线圈电阻值约为( ).
A.9Ω
B.9KΩ
C.1KΩ
D.100Ω B
[单选题]在经停站旅客不下飞机时，要保证发动机关闭并且至少保持打开一个-_____出口。
A.地板高度出口
B.登机门
C.紧急出口
D.以上都不对
[单选题]在其他条件相同的情况下，无人机越( )，需要的拉力越( )。
A.轻；大
B.重；大
C.轻；小
D.重；小
[判断题]调车作业要准确掌握速度及安全距离，在空线上牵引运行时，不准超过30km/h。
A.正确
B.错误
[单项选择]实行建设项目总承包，一开始就参与设计阶段工作，从而对建设项目的经济性产生积极的影响，这一优点是针对( )而言。
A. 建设项目主
B. 建筑施工企业
C. 设计单位
D. 金融机构
[单项选择]生长发育的一般规律不包括（）。
A. 发育的不平衡性
B. 身高、体重发育的两个高峰期：7～8岁和青春期
C. 发育的渐进性
D. 由头到尾、由近到远、由粗到细、由动到静
E. 发育的个体性
[单项选择]下列哪种药物增加颅内压（）
A. 氯胺酮
B. 硫喷妥钠
C. 依托咪酯
D. 丙泊酚
E. 咪哒唑仑
[判断题]对重大事故隐患不采取措施，致使发生重大事故，造成生命、财务损失的，只追究其人事责任，不追究刑事责任。
A.正确
B.错误
[单选题]（）应对进入有毒区域的人员进行实时监测。
A.战斗员
B.安全员
C.指挥员
D.通讯员
[判断题]( ) 坐岗是指在钻井作业过程中,泥浆工坐岗观察钻井液出口流量变化、钻井液循环罐液面变化及钻井液性能变化。
A.正确
B.错误
[多项选择]概括八脉交会理论，应该是（）。
A. 后溪通督脉
B. 照海通阴跷脉
C. 外关通阳维脉
D. 公孙通冲脉
E. 列缺通带脉
[判断题]对于检验不合格的机动车,应根据检测出的数据结果向车主给出维修建议。( )
A.正确
B.错误
[单项选择]维持呼吸功能正常的重要环节是
A. 肺主肃降的生理功能
B. 宗气的生理功能
C. 肝主疏泄的生理功能
D. 肾主闭藏的生理功能
[多选题]《铁路旅客运输办理细则》（铁运〔1997〕103号）规定，哪些情况下应在代用票记事栏内记载某些事项？
A.发售学生票时
B.发售包车时
C.办理团体票时
D.在列车上发生退款时
[多项选择]物流成本管理系统由物流成本( )组成。
A. 决策层
B. 核算层
C. 管理层
D. 效益评估层
E. 经营层
[多选题]多选题：下列选项关于一、二号线ATS报警队列描述正确的是（ ）。
A.登录系统时报警队列自动显示在界面最前端
B.登录后报警队列无法最小化或关闭
C.列表最多可显示300条报警
D.报警持续36小时未经确认系统会自动确认
[判断题]单位定期存款开户证实书可以作为质押凭证。
A.正确
B.错误
[单选题]油轮上禁止在甲板上_( )_。
A.清洁卫生
B.检查油泵
C.铲锈
[判断题]开挖深度超过1.5米的基坑,必须在外沿边设立两道防护栏杆,用密目网或金属网封闭。 ( )
A.正确
B.错误
[填空题]倒闸作业完成后，确认开关（）无误后，操作人向要令人通报倒闸结束，由要令人向供电调度员申请消除倒闸作业命令。
[单项选择]柴油机进气门调整数据为（）。
A. 0.1mm
B. 0.2mm
C. 0.3mm
D. 0.4mm
[多选题]TPM自主保全给企业带来的变化 （ ）
A.A、加深员工对微缺陷的认识
B.B、打破传统分工局限
C.C、满足员工的二次谋职需求
D.D、员工素质的提高
[不定项选择题]负责()、()及()等作业，并()前台值班员作业，称为后台值班员。
A.办理接发列车
B.接受段（场）调度的调车作业计划
C.与外界联系沟通
D.指挥、监督
[单选题]车辆在行驶中着火,应( ),切断电源油路或关闭天然气瓶手动截止阀,使用( )扑救。
A.立即停车 水桶接水
B.立即停车 自备灭火器
C.立即驶回场区 自备灭火器
[单选题]调车作业要准确掌握速度及安全距离，接近被连挂的车辆时，不准超过（ ）。
A.5 km/h
B.20 km/h
C.30 km/h
D.15 km/h
[单选题]公民应当增强大气环境保护意识，采取低碳、节俭的生活方式，自觉履行( )。
A.大气环境保护权利
B.大气环境保护职责
C.大气环境保护义务
D.大气环境保护责任
[多选题]对于设备材料进场及设备安装，下列说法正确的是（ ）
A.设备吊装前，操作人员应掌握设备的重量、平台受力情况等，起
重指挥人员与汽车吊驾驶员及时沟通，汽车吊的坐车、出杆须仔细计算，
避开周围建筑。
B.起
重指挥人员与汽车吊驾驶员及时沟通，汽车吊的坐车、出杆须仔细计算，
避开周围建筑。
C.起重用各机具必须经过安全性检查，对于吊装的吊具、绳索、措
施构件等应进行试吊，确认安全可靠后方可行吊装，防止断索、脱钩、失
稳等安全事故的发生。
D.起吊作业时，无关人员不得接近吊装区域并设专人监护。
