热门试题:
[判断题]二次回路接线松动可能造成监控系统发出“断路器控制回路断线”信号。(1.0分)
A.正确
B.错误
[判断题]电客车运行过程中，发现有危及行车安全的情况，立即采取最大常用制动措施。（ ）
A.正确
B.错误
[单选题]()将佩戴的空气呼吸器面罩让给他人使用。
*
A.严禁
B.可以
C.允许
D.视情况
[多项选择]在网络出现拥塞后，可采用以下方法解决拥塞（）。
A. 接入控制
B. 通信量整形
C. 抑制分组
D. 负载丢弃
[多选题]带电作业过程中若遇天气突然变化，有可能危及人身及设备安全时，应立即（ ）。
A.A.停止工作
B.B.撤离人员
C.C.恢复设备正常状况
D.D.或采取临时安全措施
[单选题]某线路为直线上坡，每 500m水平距离高程是升 1m，则该线路坡度为(??? )。
A.0.5‰
B.1‰
C.2‰
D.4‰
[多选题]工作票可由（）签发。
A.经设备运维管理单位审核合格且经批准的检修单位
B.设备运维管理单位
C.电力调度控制中心
D.经设备运维管理单位审核合格且经批准的基建单位
[单选题]隧道内直线地段固定测标宜埋设低于主轨顶面( )的统一水平线上。
A.30 mm
B.40 mm
C.50 mm
D.60 mm
[多选题]机动车辆排放的废气污染杂物是哪几种（ ）。
A.一氧化碳
B.碳氢化合物
C.氮氧化合物
D.以上都不是
[判断题]营业机构员工不得为客户代购、保管、传送、私售和给付重要空白凭证。
A.正确
B.错误
[简答题]The Difference Engine: Beyond
Content
A The old-media world of
newspapers, magazines, radio stations and television networks has a daunting
task ahead of it. New-media upstarts like Internet TV, social networking,
mash-ups, web stores and online gaming—with their ability to stream content
direct to smart phones, tablets, e-readers, laptops and game consoles—have begun
to eat the green-eyeshade brigade’s breakfast, lunch and tea. At last week’s
Digital Hollywood meeting in Santa Monica, California, the question on a lot of
people’s lips was how to fight back.
B A recurring theme
was ’beyond content’. By that, the gathering of film, broadcasting and
entertainment executives meant how to turn the current threat to their
livelihoods into a solution for at least survival, if not runaway success. All
agreed that, apart from getting their content online in the best shape possible,
they needed to move much further downstream in marketing terms. In short, they
should start offering services—beyond content—that add to their audience’s
experience and satisfaction.
C The problem is rapidly
becoming too big to ignore. In a recent survey of some 10,000 consumers, IBM
found that the use of mobile music and video increased five-fold between 2007
and 2009, while readership of online newspapers more than tripled. Over half the
respondents used social-networking sites like Facebook and Twitter. Two out of
five regularly read newspapers online rather than in print. ’In terms of digital
content consumption,’ the researchers concluded, ’consumers have clearly moved
beyond the trial stage.’
D It is not just gadget freaks
and early adopters who are making this happen. Sure, the young and the
technically nimble were among the first to abandon print and airwaves for online
content capable of being accessed anywhere, anytime. But the middle-aged have
now also joined the fray. Indeed, Facebook recently had to pull the plug on
chatting housewives because they were hogging large chunks of the social
network’s bandwidth for hours on end. Even 55-year-olds and up—long the bulwark
of print and broadcast media—are nowadays getting much of their news, gossip and
amusement online.
E This migration from old to new media
is causing the industry to fragment, as publishers, record companies, film
studios, television networks and other content creators butt heads with device
makers such as Apple and Sony as well as online distributors and content
aggregators like Amazon, Google, Yahoo! and YouTube. In the process, established
ways of doing business are being overturned, calling into question how
traditional content—whether print, graphics, audio or video—is produced and
delivered.
F The change is actually twofold, and much of
the problem has stemmed from a failure to understand this. For one, not only is
content going digital but, in the process, it is also becoming connected. This
change from linear type and airwaves to interactive bits and bytes has caused
the balance of power to shift to those who aggregate and distribute digital
content online. Take the way consumers are swapping from printed books,
magazines and newspapers to digital versions that can be downloaded to
e-readers, tablets, laptops or even smart phones. It is not only bookshops and
newsstands that lose from this process. Publishers, too, are suffering as
advertisers abandon printed pages and television slots for the online
world.
G It is not as though publishers can make up the
difference by taking their wares online. A reader of a printed publication
typically brings in 18 times the value of an online reader. In part, that is
because newspapers and magazines are experts at selling their demographics to
advertisers, while websites serving up information and entertainment rely more
on generic services like Google’s advertising network. Also, there are simply
far more outlets on the web than on newsstands for advertisers to choose
from.
H Television is not much better off. The difference
in value between a broadcast viewer and an online equivalent is around three to
one. But that discrepancy is expected to widen as traditional television sets
are replaced with TVs that can download video direct from the Internet, and more
entertainment websites spring up to cater for this burgeoning ’over-the-top’
demand. Already viewers have started cancelling their $70 cable or satellite
subscriptions, and downloading their favourite television shows from online
sites like Hulu or YouTube for nothing or, at most, a small pay-as-you- go fee.
Likewise, sales of DVDs are being clobbered, as Netflix and others allow
customers to stream unlimited movies direct to their television sets for $9 a
month.
I The same disintermediation has long been
happening to music, as consumers download single tracks direct from iTunes,
Apple’s online store, for 99 cents a pop, rather than buy whole CD albums from
record shops for $10 or more. In the process, Apple has flipped the
’razor-and-blades’ model of doing business on its head. Instead of subsidising
the cost of media players like the iPod and iPad (the razor in the metaphor) and
making tons of money out of downloads from iTunes (the blades), it has done the
reverse. Thus, the device makers are joining online aggregators and distributors
to capture an increasing share of the disposable income consumers spend on
information and entertainment—all at old media’s expense.
J The second change, in the way marketers are connected to consumers, is
more subtle. New media make life easier, richer and more satisfying for the
consumer. To do so, they exploit far more of the marketing opportunities that
exist between the content and the consumer. Old-media companies have
traditionally left that to others, pleased to collect just advertising and
subscription revenues. Now they must learn to do the same.
K Easier means things like having a single subscription to a publication
or pay TV channel that applies across a variety of platforms—from television
sets and computers to tablets, e-readers and mobile phones. To make life easier
still, each platform needs the same interface, the same set of navigational
tools and the same quality of experience. Television sets—with remote
controllers capable of moving on-screen cursors only up, down and across, and
then just one step at a time—are leagues behind the swiping gestures pioneered
by the iPhone. New-media innovators are bent on making the television set as
easy to navigate as an iPad. Old-media laggards will need to do the
same.
—EconomistParagraph E
[单项选择]室内质量控制中的平均值控制图主要观察测量值的平均变化情况，用于考察（ ）
A. 精密度
B. 特异性
C. 准确度
D. 敏感性
E. 误差
[多项选择]票据和结算凭证的( )不得更改，否则票据无效，结算凭证银行不予受理。
A. 金额
B. 出票或签发日期
C. 收款人名称
D. 付款人名称
[单项选择]在显微镜下观察真菌时，常用于处理标本的物质是
A. 硝酸银
B. 甘油
C. 氢氧化钾
D. 青霉素、链霉素
E. 灰黄霉素
[判断题]后台计算机加电后，设备各部件、元器件及其他设备应无变形、变色、异味、温度异常等现象。
A.正确
B.错误
[单项选择]如果你每小时接受0.02rad的α射线照射，4h后你将接受到（）的剂量。
A. 3.2rem
B. 1.6rem
C. 0.8rem
D. 0.4rem
[单选题]正式宣告新中国实行人民代表大会制度是在______。
A.1949年
B.1950年
C.1954年
D.1952年
[单选题]男性，34岁，诊断急粒白血病M3，化疗时突发DI
C，并迅速发展到消耗性低凝期，下列检查结果，哪项是不符合的
A.血小板数明显减少
B.凝血酶原时间缩短
C.血小板因子4水平增高
D.纤维蛋白原浓度降低
E.抗凝血酶Ⅲ水平减低
[判断题]主要用来安设司机室和各种电气、机械设备，承担机车重量，产生并传递牵引力及制动力，实现机车在线路上的行驶。
A.正确
B.错误
[单选题]其他障碍物系指侵入铁路限界及线路，并影响铁路行车的（）物体。
A.动态
B.静态
C.动态及静态
D.其他
[单项选择]使用弯管机弯曲管子时，为保证弯曲半径的准确性，可采用半径与弯曲半径（）的转盘进行弯曲。
A. 较大
B. 较小
C. 稍小
D. 相同
[单选题] 道岔更换时,清筛深度一般不小于()mm,并整平道床。
A.100
B.200
C.300
D.400
[判断题]高压柜微机综合测控装置发生失真闪烁，应立即将该装置内电源断开。（ ）
A.正确
B.错误
[单选题]降糖升蛋白的激素是
A.A:甲状腺激素
B.B:胰岛素
C.C:雄激素
D.D:生长激素
E.E:雌激素
[单项选择]下列说法中正确的是（）。
A. 家用电能表上的示数表示了家庭用电的总功率
B. 有金属外壳的家用电器，一定是插在三孔插座上
C. 电风扇工作时，消耗的电能全部转化为机械能
D. 家庭电路中的熔丝熔断，一定是发生了短路
[单项选择]下列有关政府公共预算的说法中错误的是（）。
A. 没有保值增值压力
B. 体现较高的福利水平和社会公平性
C. 可以积累基金
D. 政府责任大
[判断题]《南昌局集团公司旅客声明丢失实名制车票挂失补办流程》的通知(南铁客[2021]42号)规定，旅客在检票进站前丢失实名制纸质车票且符合条件到车站办理时如原车票已经改签的，只能对改签后的车票办理挂失。
A.正确
B.错误
[判断题]与重复抽样相比，不重复抽样的抽样误差比较小。
[单项选择]下列哪项业务不属于建筑业范畴（）。
A. 土木工程施工
B. 线路、管道和设备安装
C. 房地产开发建设
D. 装修装饰
[单项选择]录用人民警察的原则有公开原则、( )、择优原则。
A. 公正原则、平等原则
B. 公平原则、平等原则
C. 平等原则、竞争原则
D. 公正原则、严格原则
[填空题] Space is a dangerous place, not only because of meteors(流星) 【B1】 because of rays from the sun and 【B2】 stars. The atmosphere again acts 【B3】 our protective blanket on 【B4】 Light gets through, and this is essential 【B5】 plants to make the food which we 【B6】 Heat, 【B7】, makes our environments tolerable and some ultraviolet (紫外线的) rays penetrate the 【B8】 Cosmic (宇宙的) rays of various kinds come 【B9】 the air from outer space, but 【B10】 quantities of radiation from the sun are screened off. 【B11】 men leave the atmosphere they are 【B12】 to this radiation but their spacesuits or the walls of their spacecraft, if they are inside, 【B13】 prevent a lot of radiation damage. Radiation is the greatest known danger to explorers in 【B14】 Doses of radiation are measured in 【B15】 called "rems(雷姆) ". We all 【B16】 radiation here on earth from the sun, from cosmic rays and from radioactive minerals. The 【B17】 dose of radiation that we receive each year is about two millirems; it 【B18】 according to where
A. A．what
B．which
C．that
D．why
[单选题]县级行社至少（ ）开展一次专项业务检查，检查面为（ ）。
A.每个月 50%
B.每季度 100%
C.每半年 50％
D.每半年 100％
[多选题]装载机在通过桥涵时,应避免( )。
A.加速
B.减速
C.制动
D.停车
E.匀速
[多项选择]坚持中西医并重，促进（）发展。
A. 中医药
B. 中西医结合
C. 民族医药
D. 传统医药
[单选题]实行网上竞价方式采购的，预算金额、概预算审批（审核）价格视为（ ）。
A.参考价
B.采购最高限价
C.预算价
D.最低限价
[多选题]下面哪一条属于变电工作负责人的安全责任？()( )
A.负责提出正确完备的工作所需的安全措施
B.结合实际对工作人员进行工作前技术及安全措施交底
C.完成工作现场的安全措施布置
D.检查核实已完成安全措施是否符合工作要求
[单选题]
关于牙刷下列哪一条是错误的
A.牙刷毛越软，清洁作用越好
B.牙刷的刷头大小要合适
C.尼龙丝牙刷较猪鬃毛牙刷好
D.牙刷毛太硬容易损伤牙齿
E.牙刷不用时应刷头朝上放在牙杯中
