热门试题:
[判断题]试样弯曲后,其正面成为弯曲后的拉伸面的弯曲试验叫背弯。
A.正确
B.错误
[单项选择]Though the long term ______ can't be predicted, the plan has been approved by the boss.
A) affect C) afford
B) effect D) effort
[判断题]1.(判断题)因液压千斤顶顶升高度有限,达不到顶升高度要求时可采用二只千斤顶叠起顶升。
A.正确
B.错误
[单选题]:074:从接地地带标高以上500英尺到接地,除其他标准程序外,副驾驶将要监控下列参数,
当出现偏差时,副驾驶要向机长喊出相应的口令。当飞机进入AIII模式拉平阶段后,在拉平开始
后没有拉平,过量拉平,没有收油门,长着陆,过量坡度,或其他危险,副驾驶应该喊出____
( )
A. 对应的偏差
B. “复飞
C. “偏差大”
[单项选择]Q235-B中“B”冲击试验温度为()。
A. 200C
B. 00C
C. -200C
D. 300C
[不定项选择题]A.气滞证
A.气逆证
B.气闭证
C.血瘀证
D.血热证
E.内脏绞痛,二便闭塞,呼吸气粗,属于( )
[单项选择]以下属于常用的划线涂料的是()。
A. 墨水
B. 红丹粉溶液
C. 碱水
D. 硫酸铜溶液
[判断题]追求真理是科学活动的目的,科学工作者必须具有真诚的品质,能发现真理和维护真理。
[多选题]遇有民航安检现场发生危险品事件(故)时,以下做法正确的是( )。
A.对危险品进行控制
B.防止有关人员接触该物品
C.对可疑人员进行有效控制,同时关闭安检通道
D.联系有关单位到场救助,做好个人防护和后续处理工作。
[单选题]接触网安全巡检装置简称( )。(职工)(应知应会-铁总运[2017]9号,第八条)
A.4C
B.2C
C.3C
D.6C
[多项选择]护患关系应当建立在何种基础上()
A. 患者与护士相互尊重
B. 护士对患者的理解
C. 患者对护士的信任
D. 护士对患者合理支持
E. 患者对护士的服从
[单选题]关于压缩机发生机械故障的现象,下列说法不正确的是( )。
A.电机电流超高
B.机体发出异常声响
C.压缩机出口压力高
D.轴承温度超高
[多选题]在跨境人民币业务项下,境内代理银行可为境外参加银行提供( )等金融服务。
A.开立人民币同业往来账户
B.账户铺底资金兑换
C.人民币购售
D.人民币账户融资
[多选题]带电作业开工前,工作负责人或工作许可人若认为现场实际情况与原勘察结果可能发生变化时,应重新核实,必要时应修正、完善相应的( ),或重新办理( )。
A.组织措施
B.安全措施
C.工作票
D.操作票
[单选题]带传动是用挠性传动带为中间体而靠与带轮之间的( )工作的一种传动方式。
A.重力
B.动力
C.摩擦力
D.拉力
[多项选择]单纯男性化型先天性肾上腺皮质增生症者( )
A. 血钠升高
B. 血钾正常
C. 肾素血管紧张素原升高
D. 17-羟孕酮升高
E. 睾酮下降
[单项选择]阴中求阳的治法适用于()
A. 阳盛
B. 阴阳两虚
C. 阴虚
D. 阳虚
E. 阴盛
[判断题]111.数据通信设备故障处理常用方法有:分层故障处理法、分块故障处理法、分段故障处理法、替换法。
A.正确
B.错误
[单选题]在带电杆塔上进行测量、防腐、巡视检查、紧杆塔螺栓、清除杆塔上异物等工作,应使用绝缘无极绳索,风力应不大于()级,并应有专人监护。
A.4
B.5
C.6
D.7
[单项选择]
以下提供若干组考题,每组考题共用在考题前列出的A、B、C、D、E五个备选答案,请从中选择一个与问题关系最密切的答案。某个备选答案可能被选择一次、多次或不被选择。
代表心房除极波形的是
A. T波
B. QRS波群
C. S-T段
D. Q-T间期
E. P波
[多项选择]因肺毛细血管静水压升高引起的急性肺水肿包括
A. 感染性肺水肿
B. 心源性肺水肿
C. 神经性肺水肿
D. 液体负荷过多引起的肺水肿
E. 肺复张性肺水肿
[单选题]手动破拆工具组是由冲击杆、拆锁器、金属切断器、凿子、钎子及各种撬斧工具等部件组成,无需外接动力源,( )即可操作。
A.单人
B.双人
C.三人
D.四人
[单项选择]开放个人的组织能力,以提高工作绩效是人力资源管理中的( )。
A. 组织规划
B. 人员任用
C. 薪酬管理与激励
D. 团队能力开发
[填空题]触电者神志不清,有心跳,但呼吸停止,应立即进行( )。
[判断题]( )钢轨超声波探伤仪动态范围抑制最大时:2dB-6dB,抑制最小时:不低于16dB。
A.正确
B.错误
[单选题]要换砂轮时,应注意轮孔与轴径相符,切勿勉强安装,换装好的砂轮,必须()后再试磨,才能正式使用。
A.空试
B.开机
C.无需试验
[单选题]盲板应插在阀门后的( )
A. 倒淋
B. 法兰
C. 仪表阀
[判断题]学习动机程度与学习效率成正比,学习动机越强,效率越高。()
[单项选择]
Most children at the tender age of six or so are full of the most impractical schemes for becoming policemen, firemen or train drivers when they grow up. But when I was that age, l could not be bothered with such mundane ambitions. I knew exactly what I wanted to do, I was going to have my own zoo. My friends and relatives, who had long found me strange because I showed little interest in anything that did not have fur or feathers, accepted this as just another manifestation of my strangeness. They felt that, if they ignored my often repeated remarks about owning my own zoo, I would eventually grow out of it.
As the years passed, however, to the bewilderment of those friends and relatives, my resolve to have my own zoo grew greater and greater, and eventually, after going on a number of expeditions to bring back animals for other zoos, I felt the time was ripe to acquire my own.
From my latest trip to West Africa, I had brought back a considerable collection of an
A. Hugh knew a lot about zoos.
B. Hugh owned a number of houses.
C. Hugh knew the island very well.
D. Hugh had offered land for rent.
[多项选择]()是进度偏差的计算公式。
A. 拟完工程计划投资-已完工程计划投资
B. 拟完工程实际投资-已完工程计划投资
C. 已完工程实际投资-已完工程计划投资
D. 已完工程实际时间-已完工程计划时间
E. 拟完工程计划时间-已完工程实际时间
[多选题]如图所示,脚手架材料存在哪些明显问题:( )
A.变形
B.锈蚀
C.裂缝
D.结疤
E.毛刺
[不定项选择题]共用题干
第二篇
Xerography
For a long time Chester Carison carried around his the invention,the little black box,over which he had worked and struggled for years.He presented it to the directors of twenty-one large American corporations,such as"General Electric,International Business Machines(IBM),Lockheed,and RC
A."Nobody wanted it.
Nobody wanted to invest a penny in it.
It must be painful for those directors to think of Chester Carlson now. For the little black box is the heart of the multi-billion-dollar Xerox Corporation. Carlson is the inventor of "xerography(静电复印术)"(from two Greek words meaning "dry writing"),the dry-printing process used in thousands and thousands of offices,businesses,industries,universities,shops,and government agencies around the world.
Thanks to Carlson,it now takes minutes to copy a document which,twenty years ago,would have kept a secretary busy for a whole day.And for a few pennies anyone can have a copy of anything from cooking recipes to Greek poetry.More than thirty billion such copies are made each year.
When Chester Carlson went to work in a patent office in 1930,the copying methods were slow, dirty,and expensive.In his job,Carlson had to make many copies of patents for inventions.One night,after working late and painfully,he decided that somebody had better find an easier way to do it. He went to work in the kitchen of his apartment with measuring cups and cooking pots.By 1937, having developed a simple form of xerography,he applied for his first patent on the process.
Then began Carlson's famous unsuccessful search for investors.Only in 1944,did the Battelle Memorial Institute of Columbus agreed to lent$3,000 to Carlson for research on his invention.According to the agreement,Carlson was to receive 25%of all profits.This part of the agreement later brought millions of dollars to Carlson,who borrowed money from his family to repay his debt.
Even with Battle's help,it took another year to find a company willing to buy Carlson's process. In 1945,Dr. Dessauser,director of the Haloind company,decided to adopt and market the process, which was then named"Xerox".Three years later,the Haloind company changed name to the Xerox company,which now is the 39th largest company in the United States,with sales of over four billion dollars a year.
Why did the Haloind company changed name to the Xerox company?
A.Because the company made no other machines.
B.Because the Xerox was the core of the company and brought large profits.
C.Because it was the best way to get people to know the Xerox machine.
D.Not mentioned.
[多选题] FZW28-12F 用户分界负荷开关合闸后必须进行()操作否则分界开关将不具备保护自动控制功能! 如开关本体与控制器连接正确合闸后未进行储能操作时控制器蜂鸣器()。
A.储能
B.核相
C.报警声消除
D.报警
[填空题]The continuous presentation of scary stories about global warming in the popular media makes us unnecessarily frightened. Even worse, it __62__ our kids.
AI Gore famously 63 how a sea-level rise of 20 feet would almost completely flood Florida, New York. Holland, and Shanghai, __64__ the United Nations says that such a
thing will not even happen, __65__ that sea levels will rise 20 times less than that.
When __66__ with these exaggerations, some of us say that they are for a good cause, and surely __67__ is no harm done if the result is that we focus even more on tackling climate change.
This __68__ is astonishingly wrong. Such exaggerations do plenty of harm. Worrying __69__ about global warming means that we worry less about other things, where we could do so much more good. We focus, __70__ , on global warming’s impact on malaria (疟疾) - which will put slightly more people at __71__ in 100 years - instead of tackling the half a billion people __72__ from malaria today with preven
A. A.dumped
B.dimmed
C.doubled
D.doomed
[单选题]有抗疟活性的抗阿米巴病药物是
A.吡喹酮
B.甲苯达唑
C.氯喹
D.氯硝柳胺
E.哌嗪