热门试题:
[单项选择]流行性斑疹伤寒的治疗,首选药物为
A. 氯霉素
B. 四环素
C. 青霉素
D. 环丙沙星
E. 头孢菌素类
[单项选择]Questions 14-23
·Look at the ten statements for this part.
·You will hear a story about communication through time.
·Decide whether you think each statement is right(R), wrong(W) or not mentioned(NM).
·You will listen to it twice.
·Mark your answers on the Answer Sheet.
The neighbor took Andrew for a burglar.
A. Right
B. Wrong
C. Not Mentioned
[多项选择]在建设项目限额设计中,设计单位对()造成的项目投资增加不承担责任。
A. 建设单位超出国家规定及初步设计审批意见而增加的费用
B. 国家政策变动和设计调整
C. 由于初步设计工作深度不够,在下一设计阶段由于建筑工程量、设备规格等变动所造成的投资增加
D. 土地征用费标准的改变
E. 未经原审批部门同意,建设单位要求设计单位提高工程建设标准,并经设计单位出图增加的投资
[单项选择]成熟B细胞表面不表达的是
A. MHC-Ⅰ类分子
B. MHC-Ⅱ类分子
C. CD35
D. CD21
E. CD2
[单项选择]The teacher came into the room, with his hands ()behind his back.
A. being crossed
B. having crossed
C. crossed
D. to be crossed
[简答题]青春期的性态度影响以后的性态度,进而影响未来的生活。
[多选题]扑救大跨度钢结构厂房火灾时,控制火灾发展有哪些要点?( )
A.必要时破拆彩钢板墙体,开辟进攻通道
B.出入口位置距离较远时,可从厂房两侧的窗口进攻
C.尽可能选择靠近燃烧部位或下风或侧下风方向的出入口进入内部
D.对建筑的梁、柱等承重构件进行均匀冷却
[填空题]为了削弱诸侯王势力,文帝时,政论家贾谊上(),景帝时御史大夫兆错上()。
[判断题]电子现金具有不记名、不挂失、不验密、不计息的特点,具备圈存、消费、查询等功能。( )
A.正确
B.错误
[判断题]采煤工作面放顶线上的支柱受力是均匀的。.
A.正确
B.错误
[单选题]有关止凝血筛选试验的临床意义,错误的叙述是
A.原发性血小板减少性紫癜时,血小板相关抗体阳性
B.FDP存在时,TT延长
C.DIC时,D-二聚体阳性
D.VitK缺乏时,PT正常
E.血友病A时,APTT延长
[多选题]车务、工务、()、()、()、()站段指挥中心防洪值班人员应24小时值守,实时做好降雨预报预警信息的接收、转达和应急响应情况的反馈。
A. 电务
B. 供电
C. 机务
D. 通信
[多项选择]精神疾病的康复和社区服务的宗旨是()
A. 功能训练
B. 全面康复
C. 重返社会
D. 提高生活质量
E. 完全治愈,不再复发
[多选题]检查消防水带需要用到哪些检测器具( )。 ( )
A.天平
B.电子秤
C.游标卡尺
D.钢卷尺
[单项选择]脑性瘫痪患者常采取的步态是()
A. 醉酒步态
B. 慌张步态
C. 剪刀步态
D. 跨阈步态
E. 共济失调步态
[判断题]起重操作作业必须佩戴护目镜(面罩)、手套等防护装置。()
A.正确
B.错误
[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 pools 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 pool-
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 overheard video cameras.Al software analy-
ses the images to work out swimmers trajectories(轨道,轨线).To do this reliably,it has to tell the difference
between a swimmer and the shadow of someone being cast onto the bottom or side of the pool."The under-
water 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 ra-
dio.Baylis runs a company that installs swimming pools一and he was once an underwater escapologist(表演
脱身术的人)with a circus. " I say full marks to them if this works and can save lives , " he says. But h"
adds that any local authority spending £30,000一plus a on Poseidon system ought to be investing similar
amounts in teaching children to swim.
Which of the following statements about Travor Baylis is NOT true?
A.He runs.
B.He invented the clockwork radio.
C.He was once an entertainer.
D.He runs a company.
[单选题]动车组救援联挂完毕后需打开总风管截断阀和( )。
A.列车管截断阀
B.电钩阀
C.开闭机构截断阀
D.B15阀
[多项选择]促胰液素的作用有
A. 抑制胃酸分泌
B. 抑制胃的运动
C. 抑制胰腺小导管细胞分泌水分
D. 促进胰腺小导管细胞分泌碳酸氢盐
[单选题]下列情形中,可以驾驶机动车的是( )。
A.饮酒后
B.服用麻醉药品后
C.过度疲劳
D.未携带登记证书
[单选题]在距接触网( )米以上的燃着物体,可在接触网不停电情况下使用沙土进行灭火。
A.1
B.2
C.3
D.4
[单项选择]患者女性,68岁,因“车祸外伤继发腹腔感染”来诊。诊断:多发伤,腹腔感染,感染性休克。因循环不稳定而入住重症监护病房。不属于脓毒症治疗原则的是()
A. 早期液体复苏
B. 监测乳酸水平
C. 使用抗菌药物
D. 糖皮质激素治疗
E. 监测二氧化碳水平
[单选题]电缆线路停电后用验电笔验电时有电,是因为()。
A.A-电缆线路相当于一个电容器,停电后线路还存有剩余电流
B.B-电缆线路相当于一个电容器,停电后线路还存有剩余电荷
C.C-电缆线路相当于一个电感,停电后线路还存有剩余电荷
D.D-电缆线路相当于一个电感,停电后线路还存有剩余磁场
[单选题]由大革命失败进入到土地革命战争的一个历史转折点的标志是。( )
A.八七会议
B.遵义会议
C.中共四大
D.中共五大
[单项选择]已知A点的三面投影a、a′、a″,其中a反映A到()投影面的距离。
A. H面和V面
B. H面和W面
C. V面和W面
D. 所有面
[判断题]驾驶员作为集体活动中的一员,又要单独执行任务,具有操作独立性强、活动自由度大的特点,因此,驾驶员无须受职业道德的约束。(易)( )
A.正确
B.错误
[单项选择]It makes me ______ when people don' t listen, and then ask silly questions.
A. furious
B. gorgeous
C. mysterious
D. suspicious
[填空题]途中乘务人员换班时,应将调度命令内容()。
[简答题]调质处理是指某些合金钢在正火后再进行( )的连续热处理工艺。
[简答题]根据《广西农村合作金融机构信贷资产转让管理暂行办法》规定,广西农村合作金融机构转让信贷资产应当遵守()原则,禁止资产的非真实转移。