热门试题:
[多选题]开车前48小时以内改签,退票时按退票时间核收( )的退票费。
A.0
B.0.05
C.0.1
D.0.2
[单项选择]教师在书写板书时要求尽量用白色粉笔,所依据的感知规律是( ).
A. 活动律
B. 强度律
C. 差异律
D. 组合律
[判断题]执勤战斗预案的应用可分为平时应用和实战应用两方面。( )
A.正确
B.错误
[单选题]飞行场当地气温的变化,主要会影响以下哪种无人机的传感器
A.磁罗盘
B.速率陀螺
C.气压高度计
[单选题]下列哪个指令是主轴正转指令?
A.M03
B.M04
C.M05
D.M06
[填空题]成本估算和成本预算之间的主要区别在于是否考虑储备。( )
[单项选择]装备抢修车作业展开的时间不能超过()min。
A. 20.0
B. 5.0
C. 15.0
D. 10.0
[单选题]新八轴HXD2型电力机车在车体与转向架之间设有( )装置,即车体支撑装置。
A.传动
B.二系悬挂
C.支撑
D.一系悬挂
[填空题]用直线段逼近非圆曲线,目前常用的节点计算方法有等间距法、()和等误差法。
[多选题]驼峰色灯信号机及其复示信号机显示下列信号()。
A.一个绿色闪光灯光
B.一个黄色灯光
C.一个红色灯光
D.一个绿色灯光
[判断题]链条葫芦不得超负荷使用,起重能力在5t以下的允许2人拉链,不得随意增加人数猛拉。操作链条葫芦时,人员不准站在链条葫芦的正下方。
A.正确
B.错误
[单选题]当洪水已漫过钢轨时,司机应立即停车,并报告车站值班员;车站值班员通知工务部门现场检查,根据( )部门确定的列车运行条件组织列车开行。
A.车站
B.工务
C.电务
D.供电
[判断题]( )工程师法压井与司钻法压井相比时间长,井口装置承压大,对地层施加的压力大。
A.正确
B.错误
[多项选择]( )是影响设计进度的因素
A. 建设意图及要求改变
B. 工程变更
C. 设备选用失误
D. 资金的影响
E. 设计审批时间的影响
[多选题]关于集团安全培训教育计划,说法正确的是( )
A.专职安全生产管理人员接受再培训时间全年不少于 40 学时
B.待岗、转岗、换岗的职工,在重新上岗前,应接受一次安全培训,培训时间不得少于 15学时
C.特种作业人员在岗教育培训时间不得少于 10学时
D.集团公司、各分(子)公司、项目部、岗位对新入职员工安全培训总时长不少于 40 学时
E.新工人入场三级安全教育培训(公司、项目、班组),培训时间分别不少于 15 学时、15 学时、20 学时
[单选题]对气阀重叠角的错误认识是________。 (263327:第02-01章 柴油机基本知识)
A.利用气重叠角可实现燃烧室扫气
B.只有四冲程柴油机才有气阀重叠角
C.增压柴油机的气阀重叠角比非增压机的大
D.上止点气阀重叠角大于下止点气阀重叠角
[单项选择]"()就是指某人被网络信息左右、控制,身不由己地丧失主体性,甚至成为网络的附庸与奴隶,就像毒品成为吸毒人的需要一样。"
A. 道德失范
B. 网络犯罪
C. 网络暴力
D. 网络成瘾
[不定项选择题]共用题干
第三篇
Controlling Robots with the Mind
Belle,our tiny monkey,was seated in her special chair inside a chamber at our Duke
University lab. Her right hand grasped a joystick(操纵杆)as she watched a horizontal
series of lights on a display panel.She knew that if a light suddenly shone and she moved
the joystick left or right to correspond to its position,she would be sent a drop of fruit juice into her mouth.
Belle wore a cap glued to her head.Under it were four plastic connectors,which fed
arrays of microwires一each wire finer than the finest sewing thread一into different regions of
Belle's motor cortex(脑皮层),the brain tissue that plans movements and sends
instructions. Each of the 100 microwires lay beside a single motor neuron(神经元).When
a neuron produced an electrical discharge,the adjacent microwire would capture the current
and send it up through a small wiring bundle that ran from Belle's cap to a box of electronics
on a table next to the booth.The box,in turn,was linked to two computers,one next
door and the other half a country away.
After months of hard work,we were about to test the idea that we could reliably
translate the raw electrical activity in a living being's brain一Belle's mere thoughts一into
signals that could direct the actions of a robot.We had assembled a multijointed robot arm
in this room,away from Belle's view,which she would control for the first time.As soon as Belle's brain sensed a lit spot on the panel,electronics in the box running two real-time
mathematical models would rapidly analyze the tiny action potentials produced by her brain
cells.Our lab computer would convert the electrical patterns into instructions that would
direct the robot arm.Six hundred miles north,in Cambridge,Mass,a different computer
would produce the same actions in another robot arm built by Mandayam
A. Srinivasan.If
we had done everything correctly,the two robot arms would behave as Belle's arm did,at
exactly the same time.
Finally the moment came.We randomly switched on lights in front of Belle,and she
immediately moved her joystick back and forth to correspond to them.Our robot arm moved
similarly to Belle's real arm.So did Srinivasan's.Belle and the robots moved in synchrony
(同步),like dancers choreographed(设计舞蹈动作)by the electrical impulses sparking in
Belle's mind.
In the two years since that day,our labs and several others have advanced
neuroscience,computer science and microelectronics to create ways for rats,monkeys and
eventually humans to control mechanical and electronic machines purely by"thinking
through,"or imagining,the motions.Our immediate goal is to help a person who has been
unable to move by a neurological(神经的)disorder or spinal cord(脊髓)injury, but
whose motor cortex is spared,to operate a wheelchair or a robotic limb.
Which of the following is NOT true of the robot built by Srinivasan?
A.It was directed by signals converted from the electrical activity in Belle's brain.
B.It converted the electrical patterns into instructions for the other robot.
C.It was six hundred miles away from where Belle was.
D.It could perform the same function as Belle did.
[判断题]武德是一个历史范畴,随着现代法制的日益健全,武德基本上没有太大的作用,没有必要再继续提倡。
[单选题]下列活动中,属于最基本的实践活动的是()
A.处理人际关系的伦理活动
B.处理社会关系的实践活动
C.物质生产实践活动
D.科学实验活动
[单选题]施工用金属房内配电设备前端地面应铺设()。
A.绝缘橡胶板
B.瓷砖
C.地毯
D.工业自流坪
E.略
F.略
[单项选择]带式输送机启动时,电机不转并发出嗡嗡声,其主要原因是()
A. 皮带过负荷
B. 电机有故障
C. 按钮接触不好
D. 电机故障缺相运行
[单选题] 接收机灵敏度是指在R参考点上达到规定的误比特率时所能接收到的( )平均光功率。
A.最低
B.最高
C.偏低
D.偏高
[单项选择]既为回苏醒神的要药,又为活血通经,止痛催产常用的药物是()
A. 红花
B. 麝香
C. 冰片
D. 三七
[单项选择]
Cotton, like silk, was discovered and made (61) cloth by man before the historical period (62) . Its first recorded use was in India (63) cotton cloth of very fine texture, almost (64) silk, was made. When the Spanish (65) in the New World, they found that the Incas, the Mayas, and the Aztecs knew (66) cotton cloth. (67) of the cotton cloth made in Peru, even before the days of the Incas, (68) that it is kept in museums.
Cotton is the most important of (69) textiles. Even now, with many artificial materials (70) ,more than half of all textile products are made of cotton.
Cotton comes (71) a plant of that name. When the plant is mature, the cotton grows in a white ball around the seed. To (72) the cotton for market, the seed (73) from the cotton fiber. This (74) by a machine called the cotton gin. Then cotton is (75) into huge bundles called bales, (76) <
A. very fine
B. so fine
C. is very fine
D. is so fine
[多选题]雨情从危害风险程度分别表示一般、( )、( )、( )。
A.不严重
B.较严重
C.严重
D.特别严重
[多项选择]颅内占位性病变的治疗包括()。
A. 头高足低位,保持呼吸道通畅
B. 积极防治脑水肿
C. 改善神经代谢
D. 切除病灶
E. 姑息性手术
[单项选择]认为人类需要的强度并不都是相等的,并将人的需要由低到高分为五种类型的心理学家是( )。
A. 马斯洛
B. 奥尔德佛
C. 戴维·麦克
D. 赫兹伯格
[单选题]根据《线路安规》220kV等电位作业人员与地电位作业人员传递工具和材料时,应使用绝缘绳索进行,其有效长度不准小于( )m。
A.1.6
B.1.7
C.1.8
D.1.9
[单项选择]活塞式空压机实际工作循环中的压缩过程是()。
A. 等温过程
B. 绝热过程
C. 多变过程
D. 等压过程
[单项选择]按照统计法的要求,对统计调查对象报送的统计资料,统计人员在收集、审核、录入时,要保证二者之间的______。
A. 真实性
B. 准确性
C. 一致性
D. 完整性
[单选题]双侧闸瓦式基础制动装置的缺点:( )
A.结构复杂
B.耐磨性能较差
C.制动时阻力大
D.包含A.B.C三项
[多选题]高铁接触网高压电缆弯曲半径不小于电缆外径的“___”。电缆终端上支柱、上桥等处,电缆应预留不小于“___”。
A.2倍
B.10倍
C.20倍
D.5m
E.10m
F.15m
[不定项选择]患者甲与某医院发生医疗纠纷。甲认为由于该医院误诊,导致其疾病没有及时得到治疗,造成了财产和精神上的损害,故向法院提起诉讼,要求医院承担相应的民事责任。甲提出病历和X光片保存在医院,只要医院出示病历和X光片就可以证明医院对此负有责任。假设医院提出甲的病历等有关资料因医院工作人员保管不善而丢失,无法提供,以下何种说法是正确的?
A. 原告不能提出其他证据证明医院有责任时,原告应当承担败诉的后果
B. 法院不考虑病历等有关资料的证据意义,根据其他有关证据认定事实
C. 由于病历等有关资料保存在医院,在医院无正当理由拒不提供该资料时,法院就可以推定原告的相关主张成立
D. 法院只有在查清案件的事实基础上才能作出判决如果由于该资料丢失,导致案件主要事实不清法院应当裁定驳回起诉
[单项选择]______ film includes some recently discovered newsreels of ______ World War Ⅱ.
A. The;the
B. A;the
C. The;不填
D. A;不填
[单项选择]甲为某大学教授,乙是甲的学生,曾因为成绩不及格的事与甲发生过摩擦。后来,乙编造甲非常关心女同学的学习生活,经常对她们进行论文辅导的事情,在同学间进行宣传。后乙因为嫖娼被处理,兼管行政的甲将对乙的处分决定公布在学校的报告栏里,同时贴在校外,向社会公布。对此,下列表述正确的是( )
A. 乙的编造行为侵犯了甲的名誉权
B. 甲将对乙的处分决定贴在报告栏里侵犯了乙的名誉权
C. 甲将对乙的处分向社会公布侵犯了乙的名誉权
D. 乙的编造行为侵犯了甲的隐私权
[多选题]某新建5层停车楼,地下2层,地上3层,总建筑面积15000㎡,共设车位400个,关于该停车楼的说法,正确的有( )。
A.该停车楼应为Ⅰ类汽车库
B.该停车楼应设置消防控制室
C.设置在内转角处防火墙两侧的窗之间最小水平净距离不应小于3m
D.该停车楼的室外消防用水量不应小于20L/s
E.该停车楼每层任一点至最近人员安全出口的疏散距离不应大于60米
[多项选择]()必须在生产厂长或总工的监护下进行。
A. 大、小修后汽轮机组的第一次启动;
B. 危急遮断器定期超速试验;
C. 进行调速系统调整或试验;
D. 设备通过重大改进后的启动。
[单选题]工作期间,工作负责人若需暂时离开工作现场,应指定能胜任的人员临时代替,离开前应将工作现场交待清楚,并告知()。
A.被监护人员
B.部分工作班成员
C.全体工作班成员
D.专责监护人
[多项选择]对于如何规范出访活动这一问题,中央政治局八项规定的意见是()。
A. 从大局的需要出发进行安排
B. 严格控制出访随行人员数量
C. 严格按照规定乘坐交通工具
D. 安排华人代表等到机场迎接