热门试题:
[单选题] 电流继电器是由流过继电器线圈的电流作用在线圈上产生电磁场, 吸引与触点联动的含铁使触点闭合或分离,电流继电器线圈必须与负载 ( ) 。 ( )
A.串联
B.并联
C.先串联后并联
D.先并联后串联
[单选题][难度:0.5][分数:1]高速切削螺纹时螺距明显不均主要是()。
A.丝杠的轴向窜动
B.开合螺母的间隙过大
C.主轴径向间隙过大
D.挂轮有误差
[判断题]落料点不正是造成皮带跑偏的一个重要因素。
A.正确
B.错误
[多选题]第二次世界大战以来，从事国际经济协调、维护国际经济秩序的国际经济组织主要有（）。
A.国际货币基金组织
B.世界银行
C.世界贸易组织
D.七国集团
[单项选择]在代议制度下，议会是重要的政治机构，各国大多实行两院制。以下对近代各国议会的表述正确的是（）
A. 18世纪中期以后，英国内阁需上院支持成为惯例
B. 根据美国1787年宪法，众议员由每州2名组成
C. 根据德国1871年宪法，帝国议会是拥有权力的上议院
D. 根据法国1875年宪法，内阁要对参议院负责
[填空题]四显示自动闭塞区段，出站信号机兼作调车信号机时，显示一个红色灯光，表示<--NRC-->越过该信号机。
[判断题]2.146查验包应配置伸缩旋转镜、轮胎花纹深度尺、平面放大镜、VIN码信息读取仪器、汽车行驶记录仪检查装置、车身反光标识查验仪器等仪器装置。
A.正确
B.错误
[单项选择]中国最先引进的国外教育管理方面学术著作大都来自（）。
A. 美国
B. 德国
C. 日本
D. 法国
[填空题] I asked successful people what the secret of their success was. I (36)______an early discussion with a vice president of a large oil company. "Oh, I just keep a To Do List," he said. I passed over that quickly, little (37)______ the importance of what he said.
I was in another city the next day and I had lunch with a businessman who (38)______owned the town. He was chairman of the gas and light company, president of five (39)______companies, and had his hand in a dozen other (40)______. I asked him how he (41)______to get everything done. "Oh, that’’s easy," he said. "I keep a To Do List."
The first thing in the morning, he told me, he would come in and list what he wanted to (42)______that day. He would arrange the items in (43)______. During the day (44)____________. In the evening he would check to see how many of the items he had written down still remained undone and then give himself a score. (45)____________.
Again and again in the years since, when I have tal
[单选题]所属人将员工卡转借他人使用的，第一次违规罚款（ ）元。
A.A.200元
B.B.2000元
C.C.500元
D.D.1000元
[单项选择]下列白肋烟等级中叶片结构稍疏松的是（）
A. B3
B. C2
C. B5
D. C5
[多选题] “危险品”是指列在《技术细则》危险品清单中或者根据该细则归类的能对( )构成危险的物品或者物质。
A. 健康
B. 安全
C. 财产
D. 环境
[填空题]离心泵主要部件有 （） 、吸入室、压出室、 （）、轴承部件和泵轴。
[填空题]出库-委外发运单据的IM移动类型为（）。
[不定项选择题]变压器运行电压长时间超过分接头电压运行，使变压器（）
A.空载电流和空载损失增加，影响其使用寿命
B.空载电流和空载损失减少，增加其使用寿命
C.空载电流和空载损失增加，使用寿命没有任何影响
D.仅空载损失增加
[单项选择]胆囊炎胆石症腹痛的部位在（）.
A. 右下腹
B. 左下腹
C. 右上腹
[单项选择]为了补偿振动和压缩空气温升带来的管系膨胀的影响，空气压缩机的出风口与螺旋冷却管之间一般采用（）弹性连接。
A. 金属弹簧
B. 气缸活塞
C. 油缸活塞
D. 橡胶管
[多项选择]下列那些药能健脾治小儿泄泻
A. 婴儿健脾口服液
B. 儿康宁糖浆
C. 龙牡壮骨颗粒
D. 婴儿素
E. 启脾丸
[不定项选择题]共用题干
第一篇
Pool Watch
Swimmers can drown in busy swimming pools when lifeguards fail to notice that they are in trouble.The
Royal Society for the Prevention of Accidents says that on average 15 people drown in British poois each
year,but many more suffer major injury after getting into difficulties.Now a French company has developed
an artificial intelligence system called Poseidon that sounds the alarm when it sees someone in danger of
drowning.
When a swimmer sinks towards the bottom of the pool,the new system sends an alarm signal to a pooi-
side monitoring station and a lifeguard's pager. In trials at a pool in Ancenis,near Nantes,it saved a life
within just a few months,says Alistair McQuade,a spokesman for its maker,Poseidon Technologies.
Poseidon keeps watch through a network of underwater and overhead video cameras.Al software
analyses the images to work out swimmers'trajectories.To do this reliably,it has to tell the difference be-
tween a swimmer and the shadow of someone being cast onto the bottom or side of the pool."The underwater
environment is a very dynamic one,with many shadows and reflections dancing around,"says McQuade.
The software does this by"projecting"a shape in its field of view onto an image of the far wall of the
pool.It does the same with an image from another camera viewing the shape from a different angle.If the
two projections are in the same position,the shape is identified as a shadow and is ignored.But if they are
different,the shape is a swimmer and so the system follows its trajectory.
To pick out potential drowning victims,anyone in the water who starts to descend slowly is added to the
software's "pre-alert" list,says McQuade.Swimmers who then stay immobile on the pool bottom for 5
seconds or more are considered in danger of drowning. Poseidon double-checks that the image really is of a
swimmer,not a shadow, by seeing whether it obscures the pool's floor texture when viewed from overhead.
If so,it alerts the lifeguard,showing the swimmer's location on a poolside screen.
The first full-scale Poseidon system will be officially opened next week at a pool in High Wycombe,
Buckinghamshire.One man who is impressed with the idea is Travor Baylis,inventor of the clockwork
radio.Baylis runs a company that installs swimming pools一and he was once an underwater escapologist with
a circus." I say full marks to them if this works and can save lives,"he says.But he adds that any local
authority spending ￡30,000-plus on a Poseidon system ought to be investing similar amounts in teaching
children to swim.
AT means the same as________.
A.an image
B.an idea
C.anyone in the water
D.artificial intelligence
[单项选择]女性，52岁，既往有胆囊炎、胆结石病史，亦有胰腺炎病史。超声表现：胰腺区见一约9.2cm×3.6cm不均质回声，形态欠规则，边界可见，并于胰头部见5.0cm×5.5cm囊性暗区，形态规则，边界尚清，壁厚薄不均。确诊需做的检查是（）。
A. CT
B. MRI
C. PET
D. 血常规
E. 尿常规
[判断题]一个提单号下可以有多个集装箱，而一个集装箱内的货物也可有多个提单号。
A.正确
B.错误
[单选题]发现溢流、井漏等异常情况，应立即报告（ ）。
A.平台经理
B.值班监督
C.值班干部
D.当班司钻
[单选题]下列说法，你觉得正确的是 。
A.我的电脑中又没有什么重要的信息，黑客是不会攻击我的电脑的
B.时刻抱有一颗信息安全的心，做好病毒库升级，及时给系统打补丁等工作，防患未然
C.没有绝对的安全，所以不用注意信息安全
D.信息安全是信息安全部门的事情，与其他人员无关
[判断题]( ) LWD 的深度跟踪系统包括深度传感器、钩载传感器、及计算机内部深度软件系统等部分组成。
A.正确
B.错误
[多选题] 在专用无线系统中,基站对( )模块配置了冗余。
A.PSU
B.TSC
C.BR
D.FAN
[多项选择]要加强治安综合治理，就要做到( )。
A. 目标管理
B. 现场施工管理
C. 措施严格到位
D. 制度落实
E. 责任到人
[单选题]TXP7型平波电抗器引线采用( )。
A.裸圆线
B.纸包圆线
C.裸母线排
D.电缆和铜管
[单选题]（ ）是指旅行社所设计的旅游产品必须具有交通上的便利使购买该产品的旅游者能够容易地进入和离开旅游目的地或旅游景点。
A.针对性原则
B.市场导向原则
C.可进入性原则
D.可接受性原则
[单选题]冬季对有大量流冰的河流，应预先在桥梁（ ）范围内开凿多道纵横冰沟，以防流冰撞击桥墩。
A.上游不少于50m、下游不少于30m
B.上游不少于40m、下游不少于25m
C.上游不少于35m、下游不少于20m
D.上游不少于30m、下游不少于15m
[判断题]游客住宿宾馆的房间内发现蟑螂、臭虫等，游客提出换房时，应婉言谢绝，但必须立刻打扫和消毒。（）
[单选题]轨道动态不平顺峰值管理中线路（含道岔及调节器范围）各项偏差等级划分为四级，Ⅰ级为（ ）标准。
A.限速
B.临时补修
C.舒适度
D.经常保养
[单项选择]关于胸膜腔负压生理意义的叙述，错误的是
A. 胸膜腔负压消失可导致肺塌陷
B. 使中心静脉压升高
C. 维持正常肺通气
D. 有利于静脉回流
E. 保持肺的扩张状态
[多选题]下列(_)原因可能造成长期高损。
A.用户电能表采集失败
B.台户关系不对应
C.光伏发电用户售电量采集错误
D.用户互感器故障
[单选题]64、当160km/hA.2
B.2.5
C.3
D.3.5
[单项选择]责任保险承保的民事责任主要是______。
A. 侵权的民事责任一种
B. 违反合同的民事责任一种
C. 侵权的民事责任和违反合同的民事责任两种D．以上都不对
[单项选择]对于人工燃气来说，有害杂质H2S含量的质量指标是( )。
A. 小于40mg/m3
B. 小于30mg/m3 C．小于20mg/m3 D．小于10mg/m3
[单选题]下列有关药物的定义哪项是错误的
A.药物能影响机体的生理功能及病理状态
B.药物可用以预防、治疗和诊断疾病
C.药物是有营养、保健作用的物质
D.药物在防治疾病的同时可能产生不良反应
E.药物也可用以计划生育
