考试不挂科在线搜题-j9九游

时间:2024-06-24 08:25:00


进入激光实验室,应当遵守激光使用安全规范,以下说法错误的是:

实验中使用功率3mw的半导体激光器,属于

超市常用的标签扫描仪属于

以下哪类激光在微瓦量级,一般不必采取防范措施:

以下关于激光笔的说法错误的是

在正向驱动条件下,led的正向电压和电流之间符合什么关系?

下列数值不可能是实验所用led的正向压降的是

关于透镜通光口径的说确的是

可见光与不可见光是怎么区分的?

实验中红光和绿光混合后产生了黄光,以此证明以下哪种说法是正确的?

在实验中,将led接入电路中不发光,假设led没有坏,那可能的原因是

以下说确的是:

同种规格的红、绿、蓝三种led,在同等供电电流条件下,测得的光照度:蓝色>绿色>红色的说法:

对于红外led,可以借助光照度计判断它是否正常工作?

在验证光的独立传播的实验中,对照度和功率的多次重复测量是必要的。

在光的产生的实验中,视频中该实验所用led的限制电流为()ma

无限远处发光点发出的是平面波,对应于()光束,所以我们会利用太阳光粗测凸透镜的焦距

有限远处发光点发出的是()波,对应于同心的发散光束和会聚光束

垂轴放大倍率、沿轴放大倍率和角放大率中,按照定义进行测量,测量误差最小的应该是

当满足成像条件时,用正透镜可以对物体成实像。如果我们将透镜的中间部分从边缘开始,99%的透光面积都档掉,只保留透镜中心透光,这样的透镜还能成像吗?

平行光经过凸透镜后会聚到其焦面上(白屏)。如果将透镜整体放入纯净水中,透镜的焦距会发生变化吗?

调节光学元件共轴时,以下说确的是

用自准直法可以

在单透镜成像放大倍率的测量实验中,若光学导轨长度为1000mm,透镜焦距为160mm,则以下适合进行实验的情况有

凸透镜一定是正透镜

虚物是只能从前一光学系统获得

对一个魔方进行成像,其物像不相似

关于二次成像法,物像共轭距需大于透镜的()倍焦距

在基点基面实验中,不同孔径的平行光线入射到双凸柱透镜上,孔径高度不同的光线在光轴上是否交于一点?

在基点基面实验中,视场角不同的平行光线入射到平面柱透镜上,和0视场时的情况相比

主点与节点不一定重合,只有满足一定条件时才会重合

双透镜组合交换两个透镜的位置后,焦面位置会发生变化,因为焦距改变了。

不存在能够理想成像的实际光学系统

()是横向放大率β=+1的一对共轭点

节点是角放大率γ=()的一对共轭点

在牛顿的三棱镜分光实验中,哪种颜色的光偏折角度最大?

我国将什么光的折射率作为光学玻璃的平均折射率?

c光、d光、f光的名称分别是:

下列不属于折射率的测量方法有:

分光计是用来测量____的高精度仪器。

546.1nm是以下哪种光源的特征谱线?

实验室中有用h-k9l和 zf1这两种材料制成的三棱镜,以下哪种说法是正确的?

冕牌玻璃的折射率大于火石玻璃的折射率。

在分光计调整的实验中,考虑到狭缝越大,光通量越大,因此狭缝越大越好。

无论在哪个波段,只要波长逐渐增大,光学材料折射率总是递减的。

卤钨灯是气体放电灯。

在这个实验中所观察到的低压汞灯的谱线为吸收谱。

根据我国显微镜的现行标准,显微镜的机械筒长和光学筒长分别为:

下列有关金相显微镜的描述中,那句话是错误的?

显微镜的分辨本领跟光源的波长有关,用下列那种波段的光源观察物体时,分辨本领比较高?

以下关于望远镜的说确的是:

望远镜的放大率一般是指

实验中所使用的显微镜是生物显微镜。

显微镜的光学筒长是指:从物镜的安装定位面到镜筒上端面的距离。

实验中所观测的物体是自制的生物标本。

金相显微镜采用反射式照明,所以它应该是倒置的。

用显微镜观察物体时,眼睛应离显微目镜越近越好。

根据实验资料中所介绍的望远镜的参数测量方法,设广角平行光管的焦距为200mm,分划板上刻度尺长10mm,所能测量的10x望远镜的最大像方视场角是()度。(请填写数字,不保留小数位)

眼瞳的直径de可在2~8mm范围内调节。根据瑞利判据,并由爱里斑的半角宽度公式,可以求得人眼的最小分辨角。按照波长550nm的情况计算,正常人能分辨明视距离25cm处相隔()mm的两条刻线。(请填写数字,小数点后保留3位数字)

在进行显微镜参数测量的实验时,视频中所使用的显微镜的照明方式为:

有一个待测物镜,物镜表面的标称是:10倍、0.17/160、0.25,以下那种说法是错误的?

关于望远镜的下列说法,正确的是:

在搭建开普勒望远镜的实验中,以下说确的是:

在进行显微镜参数测量实验中,我们所使用的目镜的放大倍率有:

在用数值孔径计测量显微物镜的数值孔径实验中,待测物镜有两个,分别是100倍显微物镜和10倍显微物镜,二者可以共用一个小孔。

数值孔径计上的刻度间隔与孔径计光学材料折射率无关。

在进行显微物镜放大倍率测量的实验中,当我们将目镜更换为测微目镜时,刻尺像变模糊了,此时应该调焦获得清晰的刻尺像。

在用显微镜观察标本时,眼睛应该贴着目镜表面,这样才能看清楚标本的像。

望远镜参数测量实验中,改变被测望远镜和广角平行光管的相对位置,测量结果( )改变。(请填写,会或不会)

测量望远镜的最小分辨角时,所用平行光管的鉴别率要高,能使得鉴别率板通过平行光管后在望远镜里观察时,至少有()组鉴别图像的像方视场角小于人眼的最小分辨角。(请填写数字)

测量球差时,在平行光管后加上环带光阑的主要目的是什么?

调节环带光阑的时候,相机上只能看到环带光阑的一部分像的原因是什么?

我们用星点法测光学系统像差时,相机的探测面所在的位置是?

测量彗差时,某位同学的光路是这样的(从左到右):光源、针孔分划板、平行光管、可变光阑调到最小(约50px孔径)、彗差镜头、相机;请问下列说确的是:

关于像差,下列说确的是:

星点法测光学系统像差,星点的大小对测量没有什么影响

单独的畸变像差不影响像的清晰程度

位置色差测量时,平凸透镜的凸面朝向应该为——(平行光管或相机)

实验中我们测量单色像差时,光源用的是——光。

在实验中用iso12233测试卡进行单反相机的mtf的斜边法测量时,以下说确的是:

以下成像光学系统成像质量评价方法中,目前公认最客观和全面的方法是:

在实验中进行单反相机或手机的色彩还原性测试时,以下说确的是:

拍摄距离和拍摄视场都影响相机的mtf测量值。

拍摄一张iso12233标准测试卡,可以获得不同视场及不同方向的多条mtf曲线。

在实验中进行单反相机mtf的斜边法测量时,采用的测试板卡是基于()标准的。

在实验中进行单反相机或手机的色彩还原性测试时,采用的是()标准测试卡。

which event marks the end of the wars of the roses?

who defeated the spanish armada in 1588?

who was the first monarch to declare him/her supreme head of the church of england?

who was the best poet that synthesized the ideas and tendencies of the english renaissance?

in 1501, henry and elizabeth’s elder son arthur, having married catherine of aragon, died of an unknown ailment at the age of 15, leaving their younger son henry, duke of york, as the heir.

his desire to provide england with a male heir also resulted in his break with the pope (who would not allow an annulment of his first marriage with the widowed catherine of aragon) and the roman catholic church, leading to the english reformation.

over 800 monasteries were dissolved, demolished for building materials, confiscated, sold off or reclaimed as anglican churches.

henry had to take drastic actions, which are urging the english parliament to enact a series of acts between 1532 and 1534 breaking ties with rome, and declaring the king supreme head of the church of england.

the economically and militarily weaker england foiled the invasion or perhaps more exactly, bad luck, bad tactics and bad weather destroyed the armada.

yet the tudor legacy of meagre public revenue and endemic corruption in the central bureaucracy was ultimately ameliorated by the events of the civil war and interregnum.

henry viii achieved many of his political aims through the work of his chief ministers, so who were the most famous figures in his administration?

who were the children of henry viii?

which tudor monarch supported protestanti?

who were the writers of the tudor period?

henry tudor, the last lancastrian male, defeated the plantagenet king richard iii in the battle of bosworth field on 22 august. with his accession to the throne as henry viii, the wars of the roses came to an end.

henry viii is remembered for his six marriages in an attempt to produce a healthy son.

edward vi was a fervent catholic and carried out a series of reforms.

in order to guarantee a protestant succession, edward vi allowed lady jane grey, granddaughter of henry viii’s sister mary and an overt protestant, to become the queen.

mary i was the first queen regnant of england (a queen reigning in her own right rather than through marriage) if we exclude the disputed reigns of jane and the empress matilda.

in 1554, mary married philip, king of spain, who as a foreigner and a catholic was welcome in england.

elizabeth i was one of england’s greatest monarchs and the first monarch whose name has become a synonym for the era she dominated—the elizabethan era.

elizabeth i managed to balance the interests of the puritans and catholics and resolved the religious issue by the elizabethan religious settlement, which re-established the protestant church of england and made her its supreme governor.

henry vii was the first monarch to declare him supreme head of the church of england.

henry viii achieved many of his political aims through the work of his chief ministers.

in the summer of 1485, henry tudor, the last lancastrian male, landed in england from his exile in france and defeated the plantagenet king richard iii in the on 22 august.

henry viii was also known as the “ ” by expanding naval forces and modernizing naval administration.

mary i was a devoted catholic and also nicknamed “ ” for her persecution of over 280 protestants in a vain attempt to turn the clock back and restore roman catholici in england.

elizabeth remained the “ ” all through her life to consolidate the general policy of balancing the continental powers.

the population growth in the tudor period did not so dangerously exceed the capacity of available resources, particularly food supplies, as to precipitate a .

in 1600, the queen chartered the to share in the east indian spice trade, which had been a monopoly of spain and portugal until the defeat of the armada.

the and the flowering of literature, especially in the fields of poetry and drama, reached their apogee in the elizabethan era, adding another dimension to the “gold” of the period.

has exerted greater influence on english literature and european drama than any other single writer and his history plays, comedies, and tragedies set a standard never again equaled.

the defeat of the in 1588 is popularly viewed as one of the greatest victories in english history.

was the hub of the tudor political system and the main permanent institution of government (as opposed to the intermittent parliament).

look at the painting of jane’s execution and answer the following questions. how does the artist want us to feel about jane's execution?

how does he try to make us feel this way?

do you think that mary was justified in executing jane? explain your answer.

in which country was james i called james vi?

whose quarrels with parliament and the authoritarian rule provoked the english civil war from 1642 to 1651?

who established the royal society for the study of science and the royal observatory at greenwich?

what happened after the attempt in parliament to exclude james ii from the throne?

which may not be the cause of the british civil war?

what happened after the cromwell’s death?

which is not part of the bill of rights?

which may not be the cause of scientific development after the civil war?

which is the first real colony?

which is the milton’s work?

which happened in the reign of charles ii?

who were involved in the “great rebellion”?

who were the members of the royal society?

which documents limited royal power?

who were not the catholic?

on the death of elizabeth i in 1603, her closest male protestant relative, james vi, king of scotland (1567-1625), succeeded to the throne as james i of england.

charles ii’ quarrels with parliament and the authoritarian rule provoked the english civil war from 1642 to 1660. he was tried, convicted, and executed for high treason in january 1649.

charles ii’ quarrels with parliament and the authoritarian rule provoked the english civil war from 1642 to 1660. he was tried, convicted, and executed for high treason in january 1649.

glorious revolution, also called revolution of 1688, or bloodless revolution, in english history, refers to the events of 1688–89 that resulted in the deposition of james ii and the accession of his daughter mary ii and her huand, william iii, prince of orange and stadholder of the netherlands.

the bill of rights that william iii and mary ii accepted upon ascension strengthened the sovereign’s power, and undermined parliament’s claim to control taxation and legislation.

the english civil war, also called the “great rebellion” or “english revolution”, was a series of armed conflicts and political machinations between royalists and parliamentarians over principally the manner of its government.

the english civil war, also called the “great rebellion” or “english revolution”, was a series of armed conflicts and political machinations between royalists and parliamentarians over principally the manner of its government.

richard cromwell, the son of thomas cromwell, is one of the most controversial figures in the history of the british isles, considered a regicidal dictator by some historians but a hero of liberty by others.

in poetry the restoration is distinguished by the work of john bunyan who is seen as dominating the literary life of restoration england to such a point that the period came to be known in literary circles as the age of bunyan.

edmond halley (1656-1742) emerged from scholarly near-reclusiveness at trinity college, cambridge, in the 1690s, to become master of the royal mint, and president of the royal society in 1703. his mathematical principles of natural philosophy (1687), set science on its modern course.

charles ii, the eldest surviving son of charles i and henrietta maria of france, was restored to the throne in 1660 on the death of and the collapse of the english commonwealth after years of exile in the continent.

the years of charles ii’s reign are known in english history as the .

senior figures in the whig party invited james ii’s protestant son-in-law and nephew william of orange, to land an invasion army from the netherlands in the (1688-1689).

the that william iii and mary ii accepted limited the sovereign’s power, and reaffirmed parliament’s claim to control taxation and legislation.

the republic’s existence was initially declared through “an act declaring england to be a commonwealth”, adopted by the (nicknamed this because the army had purged the existing parliament of all members sympathetic to the king) on 19 may 1649.

mathematical principles of natural philosophy (1687) written by set science on its modern course.

the great plagueof 1665-1660 decimating approximately 100,000 of the population and the in 1666 burning 450 acres of the capital.

charles dissolved parliament three times between 1625 and 1629. in 1629, he diissed parliament again, resolved to rule alone and started his “ ”.

during the early stuart period, the size of the puritan population continued to grow. both king james i and king charles i saw them as a threat to the established church. persecution led to some leaving britain to found new colonies in america.

who is the first monarch of the house of hanover ascending the british throne in august 1714?

george iii features all of the following information except:

who is regarded as britain’s first de facto prime minister?

william’s reign saw several reforms, except:

who is the last british monarch of the house of hanover, also known as “the grandmother of europe”?

which of the following statements is true about the parliament in the georgian era?

“the government and the merchants became partners with the goal of increasing political power and private wealth, to the exclusion of other empires.” what does this refer to?

when did the american revolution start?

when did the british army surrender at yorktown, virginia ollunder a combined siege by the french and continental armies under washington?

the age of johnson (1745-1790) was characterized by the literary circle which included the following writers, except:

who succeeded the throne from his father?

what are the titles of queen victoria?

which of the following battles took place during the reign of george iii?

who were great literary masters of the hanoverian period?

on 11 june 1727, george i died on a trip. he was buried in england, and was succeeded by george ii.

george iii was born in britain, spoke english as his first language, and never visited hanover.

william iv was the last king of britain’s house of hanover.

victorian era was a period of industrial, cultural, political, scientific, and military peak within the united kingdom, and was marked by a great expansion of the british empire.

the hanoverians ruled as constitutional monarchs directly through appointed prime ministers who gathered and managed parliament.

throughout the georgian period the political rights of ordinary men and women were extremely developed.

the georgian era was moreover a time of british expansion throughout the world. the british won all the wars.

mercantili was the basic policy imposed by britain on its colonies.

the first continental congress convened in philadelphia in may and voted to form a continental army with washington as its commander in chief.

to overturn a tory or a whig cabinet only a few votes were necessary, and to influence such votes london was flooded with pamphlets.

many of britain’s american colonies were lost in the .

victoria and prince albert of saxe-coburg and gotha had nine children who married into royal and noble families across the continent, tying them together and earning victoria the sobriquet of the “ ”.

victoria’s reign of 63 years and seven months is known as the . it was a period of industrial, cultural, political, scientific, and military peak within the united kingdom, and was marked by a great expansion of the british empire.

victory over napoleon at the battle of trafalgar (1805) and the (1815) under admiral lord nelson and the duke of wellington brought a sense of triumphali and political reaction.

the second continental congress convened in philadelphia in may andvoted to form a continental army with washington as its commander in chief. on july 4, the continental congress voted to adopt the .

the american colonies enabled britain to deal with the (1789-1799) with more unity and better organization than would otherwise have been the case.

, who carried the arts of critici and conversation to new heights, both typified and helped to form mid-18th-century views of life, literature, and conduct.

the expansion of empire brought fame to stateen and explorers such as clive of india and captain , and sowed the seeds of the worldwide british empire of the victorian and edwardian eras which were to follow.

in modern britain, the cabinet heads government with parliamentary majority support. this has something to do with george i and george ii, can you explain why? william pitt the younger addressing the commons on the outbreak of the war with france (1793); painting by anton hickel.

的列车控制系统简称为

列控系统的发展是经过了几个过程

日本新干线的atc系统采用什么速度监控

ctcs一共分为几个等级

以下哪一项需要双红灯防护

我国第六次大提速,既有线采用什么级别的列控系统?

时速300-350km/h的线路采用哪个列控等级?

京沪高铁采用什么等级列控系统?

列车自动停车装置有哪些缺点?

etcs中采用g-r无线数据通信的等级有?

ctcs-2和ctcs-3共有的地面设备

阶梯式速度控制有哪两种类型?

欧洲铁路运输管理系统包含了g-r传输平台

etcs的目标只包含安全高效和降低成本

ctcs-2级的后备系统是ctcs-0级

阶梯式分级速度控制模式是分级速度控制的一种

ctcs-3是完全基于无线通信的控制系统?

应答器分为有源和无源?

ctcs-3的备用系统是ctcs-2?

第一次ctcs-3商用是在武广高铁?

一次制动模式是以前行列车所占用闭塞分区的入口为追踪目标点实行一次制动的方式?

ctcs-3设停车标,不用设区间地面信号机

列车在过分相时()

列车从实施制动开始到实际制动时间内惰行的距离叫( )

曲线阻力是指列车在拐弯时受到的( )

附加阻力的大小取决于( )

基本阻力包括( )

闸瓦压力与那些参数有关 ( )

理想情况下,惰行状态下的列车是匀速运行的( )

列车制动方式动力制动又称为电制动

空气制动力的大小数值等于闸瓦压力与轮瓦摩擦系数的乘积之和

列车惰性是指列车不受任何力

附加阻力是指在理想理想线路条件上运行受到的额外阻力

空气阻力是基本阻力的一种

车轮空转会导致车轮陷入钢轨磨损产生的深坑内事故

盘形制动是高速列车广泛采用的摩擦制动方式。

盘形制动可以延长车轮的使用寿命,是普速列车常用的制动方式

列车制动的要求主要体现在迅速准确地使运行中的列车停在某一指定点

l5码表示列车运行前方至少有()个闭塞分区空闲

ctcs-2级区段,uus码表示道岔开通侧向,允许速度为( )

jt1-cz2000中()用于接受轨道电路信息,是机车信号车载设备的接收器件。

jt1-cz2000型机车信号车载系统主机采用( )的安全结构:译码结果必须双机比较一致,输出反馈检查必须双机比较一致,防止单机出现故障而影响安全。

电源板中采用新型电源模块。每个电源模块为( )

主体化机车信号主机由左至右依次为:记录板、主机板1、主机板2、( )

机车信号机的灯光配列与地面信号显示完全一致

机车信号主机有两块主机板,两块电源板一块转换板和一块记录板构成

“双套热备”原理是提高机车信号的安全性

双套热备是指机车信号主机内具有双套主机板及双套电源和双路接收线圈共同组成的双套热备系统。

主体化设备中新的led显示器比灯丝灯泡显示具有更高的可靠性。

机车信号设备故障时,允许出现升级的错误显示。

主机采用6槽机箱结构,自左至右为记录板、电源板1、电源板2、主机板a、主机板b、连接板。

双路接收线圈内部设计为双路,每路接收线圈与另一套对应串联后对应机车信号主机中的一块主机板。

电源板的输入为110v,输出为双路50v,一路50v常有供给接收主机电路,另一路为动态控制安全点灯电源。

记录器以独立插板的形式嵌入机车信号主机箱,记录器故障后影响机车信号系统的正常工作。

ctcs-3级列控系统由()生成行车许可

调车模式下,牵引运行限制速度为()km/h

rbc向ctc发送的信息不包括()

g-r 系统实现了车地之间()信息传输

ctcs-3级列控系统的后备系统为()

ctcs-3级列控系统在()作业时,要断开与rbc的连接

ctcs-3级列控系统采用()轨道电路

ctcs-3级列控系统,( )实现列车定位检查。

ctcs-3列控系统中,计算机联锁向无线闭塞中心rbc主要传输以下哪项信息( )

ctcs-3级的最小追踪间隔是()分钟

下列那些设备属于ctcs-3级列控系统地面设备()

行车许可ma生成需要()

在下列哪些情况下需要设置临时限速( )

信号安全数据网的接入设备包括()

ctcs-3级列控车载设备(含ctcs-2级功能)有九种主要工作模式,其中仅适用ctcs-2级的模式有两种为( )

ctcs-3级列控系统工作模式有9种

ctcs-3级列控系统只能实现地对车的单向通信

g-r 无线电台可提供两个无线通道

ctcs-3级列控系统车载设备收到从tcc传来的紧急停车信息

列车制动模式曲线的计算过程必须考虑安全距离

rbc启动,上电复位后要清除所有保存的临时限速数据

单个ma只能包括一个连续锁闭进路

tsr执行命令由tsrs向tcc发送

临时限速计划调度命令内容由tcc系统负责拟定

g-r网络在ctcs-3级列控系统中无需覆盖极间转换所需要的区域

应答器信息处理模块的英文缩写( )

车站列控中心的英文缩写()

列控中心与车站微机监测通过()口连接

应答器编号中大区编号的范围()

ctcs-2级区段,l3码的含义是准许列车按规定速度运行,表示运行前方( )个闭塞分区空闲。

一台leu可以同时向( )台有源应答器发送不同信息内容的报文

常用制动模式曲线的缩写字母是( )

目标距离模式曲线反映了列车在各位置的( )值

ctcs-2级适用于时速( )的线路

ctcs-2级采用( )速度控制方式

为适配ctcs-2级列控系统,ctc系统需要增加()

列车运行过程中,应答器向列车传送( )

ctcs-2级列控系统的地面设备包括( )

无源应答器传输的是固定信息

临时限速命令在车站列控中心生成

临时限速是指线路固定限速以外的,具有时效性的限速

列控中心通过t口向轨道电路设备发送载频和低频编码命令

应答器的工作是通过电磁感应原理实现

leu可以同时向3台有源应答器发送各自相对应的报文

等级转换执行点应答器组所在处列控顶棚速度为160km/h

人机界面是列控系统提供的唯一人机操作界面

在完全监控模式下,列控车载设备能判断出列车位置和停车位置

ctcs-2级列控系统主要工作模式有6种

非引导接车时,需司机转换驾驶模式进站停车

大号码道岔是指18号以上道岔

ctcs-2级区段地面可不设通过信号机

应答器都有编号,在铁路局范围内具有唯一性

应答器链接信息包主要作用是用于列车位置的修正

当有车载天线经过有源应答器上方时,leu转换新的报文

ctcs-2级的后备级别为ctcs-0级

当进行ctcs-0级与ctcs-2级等级切换时若列车已经触发制动,应等待制动结束后才能进行等级转换。

lkj2000型监控装置采用( )英寸tft高亮度彩色液晶显示器

事故状态记录器(黑匣子)将记录( )min以内的最新列车运行状态数据

列车走行距离超过( )m,事故状态记录器(黑匣子)将产生一次相关参数记录。

lkj2000型监控装置屏幕显示器显示()

列车运行监控记录装置主要用于时速160km/s以下的路段

列车运行监控记录装置可以提高运输效率,保证行车安全。

列车运行监控记录装置将列车运行全部线路设施资料预先存储于主机中,并根据需要在地面增加附加设备。

列车运行监控记录装置采用计算机智能处理对列车运行速度进行安全监控。

lkj2000型监控装置可以记录距前方信号机距离。

lkj2000型监控装置可以记录前方信号机种类,但不能记录编号。

列车运行监控记录装置采用阶梯速度模式曲线控制。

lkj2000型监控装置可以记录装置异常状况。

第一条真正意义上的ctcs-3级高铁线路是( )

( )是列车的大脑

ctcs中采用该等级列控系统线路最少的等级为( )

应答器天线用来接收( )的信息。

处于ctcs-2级运行的列车,由( )为列车提供行车许可信息。

在ctcs-2级列控系统中自动过分相的数据由( )提供

ctcs-3级列控系统中,车载设备采用( )闭塞方式

在铁路信号设备出现故障时必须满足( )原则。

世界上第一条高速铁路是( )。

列车运行控制系统是靠控制列车运行 ( )的方式来实现的。

ctcs的最低等级为( )。

jt1-cz2000中双路接收线圈用来接收( )的信息。

ctcs-3列控系统与ctcs-2级列控系统最大的区别是( )

在ctcs-3级列控系统中自动过分相的数据由( )提供。

在4.28事故中,车载设备采用( )控车

7.23事故中暴露的最主要的问题是( )设计缺陷。

应答器在全国范围内有唯一的编号。

ctcs-3满足最小2分钟的追踪间隔。

我国轨道电路的低频信息实现了统一。

主体化机车信号较之通用式机车信号最大的区别,在于当地面信号显示与车载设备显示不一致时以车载信号显示为主。

ctcs-2级列控系统不再装设lkj设备。

ctcs-2级和ctcs-0级级间切换时,若设备已触发制动,则需等设备制动结束后再进行级间切换。

列车运行控制是保证列车 和高效运行的控制系统。

与列控系统要进行数据交换的系统包括 、 和信号集中监测系统。

在ctcs-2级列控系统中传送点式信息的设备是 。

列车在线路上运行时,其运行状态有 、 、减速。

阶梯式速度控制分为 速度控制和 速度控制。

是无线闭塞中心的英文缩写。

由 应答器实现ctcs-2级和ctcs-0级之间的等级切换。

ctcs-2级列控系统中tcc需要通过leu发送 和 给有源应答器。

ctcs-3级列控系统采用 实现车地信息的双向传输。

当列车遇到紧急情况,由调度中心给列车发送 条件的紧急停车指令。

ctcs-3级和ctcs-2级列控系统均采用 控制原理。

在rbc生成ma的过程中需要列车提供 和 等实时信息。

应答器主要储存固定不变的信息。

ctcs-3级列控系统中rbc需要通过 网络发送进路信息和临时限速信息给车载设备。

ctcs-2级列控系统采用 加 实现点连式信息的传输。

是列控中心的英文缩写。

应答器主要储存可变的信息。

与rbc要进行数据交换的系统包括 、 和信号集中监测系统。

terminology what is the function of a fully connected layer?

terminology what is a recurrent neural network?

mathematics of deep learning. what is an affine transformation? also give the formula.

face recognition. why are histograms of gradients (hog) working so well in face detection?

deep learning is a class of ______ algorithms. a. rote learning b. learning by ogy c. learning from induction d. machine learning

deep learning algorithms type(s) are ______. a. supervised b. unsupervised c. supervised and unsupervised d. neither

what do filters do? a. convolution b. pooling c. max-pooling d. deconvolution

which is not deeping learning frameworks? a. caffe b. tensorflow c. seqan d. torch

which is not the activation function? a. relu b. elu c. tan(x) d. sigmoid

instead of just looking at overall accuracy, we calculate _____ metrics. a. revising b. precision and recall c. forecasting d. prediction

output is a function of every input, or the input and output are ____ a. fully connected b. incomplete connected c. one-to-one link d. natural link

in machine learning, having more ___ is almost always more important than having better algorithms. a. data b. powerful gpu c. filters d. kernels

which situation is not convenient to utilize alexnet? a. classification of tumor b. classification of dogs & cats c. natural language understanding d. vision of self-driving taxi

using back propagation, the is? where a=2, b=1,c=3,d=2,e=6. a. 1 b. 2 c. 3 d. 4

which is not the platform for deep learning? a. pytorch b. tensorflow c. python d. maxnet

what's the name of this picture? a. gabor kernel b. gauss kernel c. relu function d. sigmoid function

what's the name of this picture? a. gabor kernel b. gauss kernel c. relu function d. sigmoid function

末次月经第1日是2016年9月17日,计算预产期是()

胎儿的孕育过程中,提供足够的叶酸就显得尤为重要,叶酸的补充要从孕前几个月开始?

人类的致畸敏感期是指?

以下孕妇为产前诊断对象的是

医学上以4周为一个孕龄单位,描述胚胎及胎儿发育的特征。孕周从末次月经第1天开始计算,全过程约多少周?

妊娠()周后是心脏负担较重的时期之一,是心脏病孕妇的危险时期,极易发生心功能衰竭?

开放性神经管畸形(ntds)不包括以下哪些?

胎儿解剖结构畸形的筛查目前最常用的检测手段是:

食品和药物管理局根据药物对胚胎、胎儿的致畸情况,将药物对胚胎、胎儿的危害性等级,由低至高分为()

唐氏综合征是精神发育迟滞最常见的原因,它是几号染色体的三体畸形?

能确诊妊娠的方法不包括?

关于胎动描述恰当的是

先兆临产的特点包括

关于预产期的说确的是

以下孕妇为产前诊断对象的是

关于见红,以下说确的是

胎头衔接是指

正常情况胎膜破裂发生在

妊娠36周产前检查示脐下左侧胎心听诊最清楚,最可能的胎位是

四步触诊法检查的内容不包括

医学会妇产科分会发布的《孕前和孕期保健指南》,建议孕前必查的检查项目包括:血常规、尿常规、abo和rh血型、肝功能、肾功能、空腹血糖、乙型肝炎等传染指标和宫颈细胞学检查。

胎盘能合成多种激素、酶和细胞因子,对维持正常妊娠起重要作用。

母血中免疫抗体如igm能通过胎盘,使胎儿在生后短时间内获得被动免疫力。

人类遗传性疾病可分为5类:染色体病、单基因病、多基因病、体细胞遗传病和线粒体遗传病。

孕妇侧卧位能解除子宫压迫,改善血液回流,因此妊娠中晚期鼓励孕妇侧卧位休息。

女性超重或体重不足,与受孕机会和妊娠后并发症的发生机会无关。

早孕期不建议做b超检查,因有辐射危险。

唐氏筛查高危说明胎儿有染色体异常,应行引产术。

oct时出现正弦波型,不能继续等待观察

人工破膜应在宫缩期进行

凶险性前置胎盘易导致严重产后出血。

妊娠期细菌首选的治疗是

某孕妇,32岁,妊娠13周,以外阴瘙痒2天就诊。妇科检查可见外阴抓痕明显,分泌物较多,呈白色稠厚样。临床诊断考虑为

下列不属于复杂性外阴假丝酵母菌病的特点的是

育龄期妇女内有大量稀薄脓性黄绿色泡沫状分泌物,最可能的疾病是

女性,29岁,停经55天,下腹痛伴流血8小时,流血量较月经量多。妇科检查:子宫稍大,宫口扩张可容1指,活动性出血。最有效的止血措施是

女性,25岁,停经9周,流血1天,为少量暗红色,无明显下腹疼痛。妇科检查:宫口闭,子宫增大如50日大小。b超提示宫内妊娠,未见心管搏动。临床诊断为

异位妊娠最常见的部位是

女性,24岁,停经50天,少量流血3天,3小时前突感左下腹撕裂样疼痛,伴头晕呕吐及坠胀感。体格检查:面色苍白,bp 80/40mmhg,p 120次/分,腹肌紧张,下腹压痛。妇科检查:少量出血,宫颈举痛( ),后穹隆饱满,子宫稍大,附件区触诊不满意。最恰当的处理是

宫颈病变的诊断方法不包括

以下流产类型中出血量多,易造成失血性休克的是

下列哪些是妊娠晚期生理性腹痛?

早产是指在妊娠多少周前出现的要分娩的情况

胎盘早剥更容易发生在以下哪种病例中?

妊娠晚期出现下列哪些症状要考虑可能合并外科疾病?

以下哪种饮食不容易发生妊娠期急性胰腺炎?

前置胎盘的主要症状是

哪一种类型的妊娠高血压疾病会出现抽搐?

正常分娩时,胎膜破裂的时间多数在

妊娠期糖尿病的缩写是什么

双胎在哪个时间段确定绒毛膜性?

我国孕产妇死亡的第2位原因是

妊娠期贫血最常见的类型是:

以下哪项是胎儿窘迫的最敏感征象

关于妊娠期糖尿病,以下说确的是

以下妊娠期皮肤瘙痒对母儿影响最大的是

胎儿生长受限对胎儿的危害不包括哪些?

妊娠期贫血是指

以下哪些不是妊娠期的生理变化?

宫颈息肉极少发生恶变,孕期如果没有症状可暂不处理。

滴虫炎主要由性行为传播,应同时进行治疗。

流产发生时间不同,其症状不同,早期流产一般先有腹痛再出现流血,晚期流产一般先有流血再有腹痛。

完全性葡萄胎的染色体核型为三倍体。

妊娠期不能进行宫颈癌的筛查,以免增加胎膜早破和早产的风险。

前置胎盘的分类有:型、边缘型和部分型。

乙肝患者孕前应进行规范的抗病毒治疗,有利于病情稳定和减少妊娠时的母婴传播。

妊娠晚期发现肌瘤红色变性,原则上行手术治疗。

妊娠合并阑尾炎一经确诊,应积极抗感染并尽快手术治疗。

子痫前期主要临床表现是高血压、蛋白尿 。疾病严重时,发生母体脏器功能不全或胎儿并发症。

妊娠期肝内胆汁淤积症常见表现是孕妇皮肤瘙痒。

妊娠合并心脏病产后需要加强预防感染的治疗。

妊娠期孕妇血容量增加的3个高峰期是孕36-40周,分娩期和产后。

妊娠期糖尿病治疗的措施有饮食控制,健康教育,运动调节和药物治疗。

妊娠期糖尿病更容易出现羊水过少。

羊水栓塞发生的可能原因是

病理性缩复环发生在()

胎儿娩出后,胎盘延迟剥离后流血不止,血液能凝固,检查:子宫轮廓不清,考虑产后出血的原因为:

产褥感染中最常见的病理改变是:

产褥期抑郁症症状最常见于产后:

产后出血是指剖宫产取出胎儿后24小时内出血超过()

产褥感染最常见的细菌是()

27岁初产妇,临产后静脉滴注缩宫素,宫口开全自然破膜,突然出现呛咳、呼吸困难、发绀,数分钟后死亡。最可能的诊断是:

先兆子宫破裂最典型的临床表现是:

产后出血最常见的原因是:

产后出血是指胎儿娩出后2小时失血量超过500ml,剖宫产时超过1000ml。

子宫破裂多发生在妊娠晚期。

产褥感染时,累及下肢静脉,形成血栓静脉炎,使血液回流受阻,引起下肢水肿,皮肤发白,习称“股白肿”。

胸部x线片见双肺有弥漫性点片状浸润影,沿肺门周围分布,伴右心扩大,可诊断为羊水栓塞。

脐带脱垂发生的根本原因是脐带过长。

胎盘是介于胎儿与母体之间,是维持胎儿宫内生长发育的重要器官,胎盘功能不包括以下哪项?

胎儿染色体非整倍体的诊断方法是

关于正常分娩下列叙述正确的是

妊娠36周产前检查示脐下左侧胎心听诊最清楚,最可能的胎位是

下列关于妊娠期cin处理错误的是

晚期流产的临床表现不包括

输卵管妊娠的辅助检查方法不包括

产后几日子宫可降至盆腔

恶露根据颜色、内容物及时间不同,分为

胎盘早剥是指

妊娠期的急性阑尾炎容易误诊的主要原因

胎儿娩出后立即出现持续性流血,色鲜红,子宫轮廓清楚,考虑出血的原因是

24岁初产妇,孕40周,临产后宫口开大4cm,自然破膜,破膜后3分钟突然出现呛咳、呼吸困难、发绀、血压进行性下降。首选措施是:

妊娠期重症肝炎与妊娠特发肝脏疾病鉴别的要点是

生理性黄疸的特点不包括

关于见红,以下说确的是

子宫收缩力的特点是

关于女性骨盆正确的是

临产的标志是

输卵管妊娠的辅助检查方法有

细菌的诊断依据包括

避孕是通过什么原理实现的?

新生儿的生理特点有

妊娠期糖尿病对胎儿的影响有哪些

妊娠期孕妇血容量增加的3个高峰期是哪些?

妊娠期糖尿病治疗的措施,以下哪些是正确的?

fgr对胎儿的危害有哪些?

正常产后如果排尿困难,可用什么方法诱导排尿

以下关于妊娠期肝内胆汁淤积症的说法,正确的是

nst反应型是指

母亲牙周炎是早产和低体重儿的独立危险因素。

在准备怀孕前6个月夫妻双方应停止吸烟、饮酒,并远离吸烟环境。

产前保健指南指出妊娠18-24周胎儿系统超声筛查是必查项目,筛查胎儿的严重畸形。

瘢痕子宫再次妊娠都应选择剖宫产。

唐氏筛查高危说明胎儿有染色体异常,应行引产术。

完全性葡萄胎的染色体核型为三倍体。

妊娠合并外阴假丝酵母菌病为单纯性外阴假丝酵母菌病。

ⅲ型残角子宫不会引起残角子宫妊娠,但可导致输卵管妊娠。

产后月经复潮及排卵时间主要受哺乳的影响。

年龄>35岁吸烟妇女、严重吸烟妇女,精神病长期服药,有严重偏头痛、反复发作的女性不适合激素避孕。

胎盘早剥对母体的影响主要是因为失血造成的损害。

前置胎盘出血多的类型是边缘型。

早产最常见的原因是宫内感染。

oct时出现正弦波型,可以继续等待观察。

男女新生儿均可见到乳腺肿大,乳腺如蚕豆或核桃大小,切不可挤压,以免感染。

胎儿循环系统的特点有哪些,与成人有哪些区别?

子宫收缩乏力所致产后出血的处理方法有哪些?

尽管企业薪酬结构类型有很种,但是,从性质上可以分成以下主要类型,他们是( )。

矩阵制师由职能部门系列和为完成某一临时任务而组建的项目小组系列组成,其最大特点师具有层命令系统。其优点在于:将企业外部联系和内部联系较好地结合起来,有利于加强与企业外部位之间的协作和配合,及时沟通情况,解决问:一般能在略微增加机构和人员编制的前提下,将不同部门的专业人员集中在一起,组建方便;能较好地解决组织结构相对稳定和管理任务变之间的矛盾,使一些临时性、跨部门的工作任务的执行变得不再困难;为企业综合管理与专业管理结合提供了恰当的组织结构形式,使组织关系变得比较简。

企业进行薪酬调查要了解的信息包括( )。

依据一个地区的()确定最低工资标准

其贯彻绩效管理制度必须获得( )。

就你目前的工作状况来看,你最希望解决的问是( )。

工资指导线的作用

属于帮助员工进行职业发展的项目有( )。

管理者在管理过程中承担的职能是( )

集体合同的协商一般有( )等步骤。

一般企业培训的产出不能纯粹以传统的经济核算方式来进行,因为它包括潜在的和发展的因素,另外还有( ):

企业组织绩效开发的目的是( )。

小王喜欢登山,小李喜欢听音乐,这体现了( )

企业进行薪酬调整的依据包括( )

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