热门试题:
[判断题]《中国人民解放军现役士兵服役条例》(1999年修订)规定,士官军衔重新设定为五级。( )
A.正确
B.错误
[单项选择]使用直流磁化时，发现一个显示。为了确定它是否表面缺陷，应采取的合理步骤是（）
A. 用波动法重新检验
B. 退磁后用小电流重新检验
C. 用较大电流重新检验
D. 用交流电重新检验
[单项选择]胃癌患者，胸痛1个月，进行性加重，最近出现呼吸困难。CT平扫发现左侧多发散在的胸膜结节，并见大量胸腔积液，CT增强扫描结节明显强化。最可能的诊断为（）
A. 并发结核性胸膜炎
B. 并发液气胸
C. 并发肺转移瘤
D. 并发胸膜转移瘤
E. 弥漫性胸膜间皮瘤
[单选题]氧气乙炔气集中供气间的气瓶管道的各种阀门打开和关闭时应缓慢进行。
A.正确
B.错误
[单选题]铁路运输企业应当加强铁路运输安全管理，建立、健全( )制度，设置安全管理机构，保证铁路运输安全所必需的资金投入。
A.铁路运输管理
B.安全生产管理
C.事故责任追究
D.质量管理
[判断题]青岛农商银行借记卡交易明细簿可以记录客户银行卡业务交易明细，客户不需前往柜台打印流水，查看明细更加方便快捷。
A.正确
B.错误
[单项选择]患者男，2岁，因“发热、头痛、呕吐、咳嗽3d，烦躁不安1d”来诊。查体：T39.5℃，BP98/60mmHg；精神萎靡；瞳孔等大，对光反射存在；颈强直；胸、腹部可见散在出血点；克尼格征（＋），布鲁津斯基征（－），巴宾斯基征（－）。血常规：WBC21.0×109/L，N0.85，L0.15。最可能的诊断是（）
A. 流行性乙型脑炎
B. 细菌性痢疾中毒型
C. 流感嗜血杆菌脑膜炎
D. 结核性脑膜炎
E. 流行性脑脊髓膜炎
F. 肾综合征出血热（流行性出血热）
[判断题]涉及安全生产的情况应报不报、故意拖延或者不如实报告属于涉及安全生产弄虚作假行为。（）
A.正确
B.错误
[判断题]螺杆空气压缩机螺杆的阴、阳转子具有对称的啮合型面,平行安装在一个铸铁壳体内作回转运动。 (2号线作答)
A.正确
B.错误
[单选题]公安机关消防机构统一组织和指挥火灾现场扑救,应当优先保障﹛.XZ﹜。
A. 国家财产安全
B. 个人财产安全
C. 遇险人员的生命安全
D. 集体财产安全
[判断题]正线、到发线下道避车，应遵守以下规定：120km／hA.正确
B.错误
[多选题]实施火场警戒的条件()。
A.有大量人员围观,严重影响灭火战斗行动的现场。
B.参战人员和车辆多,实施灭火战斗行动需占用道路的现场
C.火势不能迅速有效控制,有蔓延扩大趋势的现场。
D.发生有毒气体、易燃气体、易燃液体泄漏扩散的灾害事
[填空题]轨道交通高压供电方式有:__________、__________和__________。
[单选题]石蜡不溶于（ ）。
A.酒精
B.水
C.乙醚
D.汽油
E.氯仿
[多项选择]桩身的完整性评价可采用卢法，下列说法完全正确的是（）。
A. 当0.8≤β＜1.0时为基本完整桩
B. 当β＝0.8时为完整桩
C. 当0.6≤β＜0.8时为严重缺陷或断桩
D. 当β＜0.6时为严重缺陷或断桩
[单选题]甲怀有双胞胎乙丙，在怀孕期间乙丙的爷爷去世，根据遗嘱两孩子分别继承50万元。不幸的是。分娩当天(4月4日）突发地震，乙在分娩过程中未能存活，医院未为丙出具出生证明。甲认为丙出生时发生地震不吉利，便在户籍登记时将其出生日期登记为地震发生后第2天(4月6日）。就此，下列说法正确的是：( ）
A.乙娩出时为死体，自始不具有民事权利能力
B.应当由乙继承的50万元自动由丙继承
C.丙自出生时取得民事权利能力
D.即便有医院的分娩记录等作证丙真实的出生日期，丙在法律上的出生日期依旧为4月6日
[单选题]下列对血清蛋白质叙述错误的是:
A.白蛋白/球蛋白比值为( 1.5~2.5):1
B.白蛋白参考范围为35~50 g/L
C.总蛋白参考范围为60~80 g/L
D.白蛋白和球蛋白均由肝实质细胞合成
[单选题]下列活动中，属于房地产经纪活动的是( )。
A.房地产登记
B.房地产居间
C.房地产开发
D.房地产估价
[单项选择]男性，55岁。近2天出现上腹部不适，呕吐，呕吐物为酸臭的宿食，吐后症状可缓解。查体见胃型及蠕动波。该患者的诊断是（）
A. 肠梗阻
B. 胃溃疡
C. 肝炎
D. 胆囊炎
E. 幽门梗阻
[单选题] 电力线路电流速断保护是按躲过本线路( )来整定计算。
A.末端两相最小短路电流
B.首端三相最大短路电流
C.末端三相最大短路电流
[多项选择]一般来说，商业助学贷款的贷款对象是在境内高校就读的全日制( )。
A. 高中生
B. 专科生
C. 本科生
D. 研究生
E. 第二学士学位学生
[判断题]向视图是可自由配置的视图。( )
A.正确
B.错误
[判断题]预防感染严重冻伤应口服或注射抗菌素，常规进行破伤风预防注射。
A.正确
B.错误
[单选题]CR400AF型动车组车轮踏面擦伤一级检修标准：当车轮直径>900mm时，长度≤（）mm 且深度≤0.25mm。
A.25
B.30
C.40
D.50
[单选题]作业人员发现安全隐患应妥善处理或向（ ）报告；发现直接危及人身、电网和设备安全的紧急情况时，应立即停止作业或采取必要的应急措施后撤离危险区域。
A.上级
B.业主
C.监理
D.施工单位
[单选题]某站线曲线半径为450＜R≤800，用20m弦测量，圆曲线正矢连续差的日常保持容许偏差管理值为（ ）mm。
A.8
B.10
C.12
D.14
E.16
F.18
[判断题]作为行政处罚依据的相关法律、法规或者规章必须公布,未经公布不得作为处罚依据。
A.正确
B.错误
[单选题]下列选项中哪项不属于火灾隐患＿＿。
A.违章关闭消防设施
B.正常用电
C.发生火灾时会影响人员安全疏散或者灭火救援行动的
D.发生火灾时会导致火势蔓延、扩大或增加对人身、财产危害的
[单选题]脱贫攻坚“两不愁、三保障”是指:到2020年,稳定实现农村贫困人口( )。
A.不愁吃、不愁穿,住房、生活、医疗有保障
B.不愁吃、不愁喝,养老、医疗、住房有保障
C.不愁吃、不愁穿,义务教育、基本医疗和住房安全有保障
D.不愁吃、不愁穿,基本养老、基本医疗和住房安全有保障
[填空题]The Difference Engine: The Answering
Machine
A It was not quite a foregone
conclusion, but all the smart money was on the machine. Since the first
rehearsal over a year ago, it had become apparent that Watson—a supercomputer
built by IBM to decode tricky questions posed in English and answer them
correctly within seconds—would trounce the smartest of human challengers. And so
it did earlier this week, following a three-day contest against the two most
successful human champions of all time on ’Jeopardy!’, a popular quiz game aired
on American television. By the end of the contest, Watson had accumulated over
$77,000 in winnings, compared with $24,000 and $21,600 for the two human
champions. IBM donated the $1m in special prize money to charity, while the two
human contestants gave half their runner-up awards away.
B IBM has a long tradition of setting ’grand challenges’ for itself—as a
way of driving internal research and innovation as well as demonstrating its
technical smarts to the outside world. A previous challenge was the chess match
staged in 1997 between IBM’s Deep Blue supercomputer and the then world
champion, Garry Kasparov. As shocking as it seemed at the time, a computer
capable of beating the best chess-player in the world proved only that the
machine had enough computational horsepower to perform the rapid logical
analysis needed to cope with the combinatorial explosion of moves and
counter-moves. In no way did it demonstrate that Deep Blue was doing something
even vaguely intelligent.
C Even so, defeating a
grandmaster at chess was child’s play compared with challenging a quiz show
famous for offering clues laden with ambiguity, irony, wit and double meaning as
well as riddles and puns—things that humans find tricky enough to fathom, let
alone answer. Getting a mere number-cruncher to do so had long been thought
impossible. The ability to parse the nested structure of language to extract
context and meaning, and then use such concepts to create other linguistic
structures, is what human intelligence is supposed to be all about.
D Four years in the making, Watson is the brainchild of David
Ferrucci, head of the DeepQA project at IBM’s research centre in Yorktown
Heights, New York. Dr. Ferrucci and his team have been using search, semantics
and natural-language processing technologies to improve the way computers handle
questions and answers in plain English. That is easier said than done. In
parsing a question, a computer has to decide what is the verb, the subject, the
object, the preposition as well as the object of the preposition. It must
disambiguate words with multiple meanings, by taking into account any context it
can recognise. When people talk among themselves, they bring so much contextual
awareness to the conversation that answers become obvious. ’The computer
struggles with that,’ says Dr. Ferrucci.
E Another
problem for the computer is copying the facility the human brain has to use
experience—based short-cuts (heuristics) to perform tasks. Computers have to do
this using lengthy step-by-step procedures (algorithms). According to Dr.
Ferrucci, it would take two hours for one of the fastest processors to answer a
simple natural-language question. To stand any chance of winning, contestants on
’Jeopardy!’ have to hit the buzzer with a correct answer within three seconds.
For that reason, Watson was endowed with no fewer than 2,880 Power 750 chips
spread over 90 servers. Flat out, the machine can perform 80 trillion
calculations a second. For comparison’s sake, a modern PC can manage around 100
billion calculations a second.
F For the contest, Watson
had to rely entirely on its own resources. That meant no searching the Internet
for answers or asking humans for help. Instead, it used more than 100 different
algorithms to parse the natural-language questions and interrogate the 15
trillion bytes of trivia stored in its memory banks—equivalent to 200m pages of
text. In most cases, Watson could dredge up answers quicker than either of its
two human rivals. When it was not sure of the answer, the computer simply shut
up rather than risk losing the bet. That way, it avoided impulsive behaviour
that cost its opponents points.
G Your correspondent
finds it rather encouraging that a machine has beaten the best in the business.
After all, getting a computer to converse with humans in their own language has
been an elusive goal of artificial intelligence for decades. Making it happen
says more about human achievement than anything spooky about machine dominance.
And should a machine manage the feat without the human participants in the
conversation realising they are not talking to another person, then the machine
would pass the famous test for artificial intelligence devised in 1950 by Alan
Turing, a British mathematician famous for cracking the Enigma and Lorenz
ciphers during the second world war.
H It is only a
matter of time before a computer passes the Turing Test. It will not be Watson,
but one of its successors doubtless will. Ray Kurzweil, a serial innovator,
engineer and prognosticator, believes it will happen by 2029. He notes that it
was only five years after the massive and hugely expensive Deep Blue beat Mr.
Kasparov in 1997 that Deep Fritz was able to achieve the same level of
performance by combining the power of just eight personal computers. In part,
that was because of the inexorable effects of Moore’s Law halving the
price/performance of computing every 18 months. It was also due to the vast
improvements in pattern-recognition software used to make the crucial
tree-pruning decisions that determine successful moves and countermoves in
chess.
I Now that the price/performance of computers has
accelerated to a halving every 12 months, Mr. Kurzweil expects a single server
to do the job of Watson’s 90 servers within seven years—and by a PC within a
decade. If cloud computing fulfils its promise, then bursts of Watson-like
performance could be available to the public at nominal cost even sooner. Mr.
Kurzweil believes that once computers master human levels of pattern recognition
and language understanding, they will leave mankind way behind. By then, they
will have combined the human skills of language and pattern recognition with
their own unique ability to master vast corpora of knowledge.
J Will that mean game over for humans—with robots keeping people around
merely as pets ’Absolutely not’, says Oren Etzioni, director of the Turing
Centre at the University of Washington in Seattle. But it does mean, he notes,
that computers will be able to achieve vastly more than they can today. For a
start, super-smart machines capable of answering questions in English (or any
other natural language) will change search engines out of all recognition. No
longer will Google and Bing bombard users with hundreds or even thousands of
dumb links to dubious sources. Instead, people will get the unique and
meaningful answers they are seeking.The difference between humans and computers is that humans can understand complex linguistic structures and using their knowledge to create some others.
[判断题]判断题:用千分尺测量时,只须将被测件的表面擦干净,即使是毛坯也可测量。( )
A.正确
B.错误
[多项选择]当金属物或线路与引下线间有（）等静电屏蔽物隔开时，其之间的间隔距离可无要求。
A. 木板
B. 砖墙
C. 接地的钢筋混凝土构件
D. 金属板
[单选题]下列贫血发生原因不是由于红细胞生成减少造成的是
A.缺铁性贫血
B.巨幼细胞贫血
C.再生障碍性贫血
D.溶血性贫血
E.白血病
[判断题]临时处理或紧急处理时，应先在断缝两侧轨头非工作边做出标记，标记间距离约为5 m，并准确丈量两标记间的距离和轨头非工作边一侧的断缝值，做好记录。
A.正确
B.错误
[多选题]伤员在经过（ ）后，需要迅速护送到医院进一步救治。
A.A治疗
B.B急救
C.C止血
D.D包扎
E.E骨折临时固定
[判断题]()速度 160km/h 及以下时,填土厚度不宜小于 0.8m,站线涵洞填土厚度不应小于 0.6m
A.正确
B.错误
