热门试题:
[单项选择]γ-运动神经元的功能是
A. 肌梭感受器敏感性降低
B. 肌梭的传入冲动减少
C. α-运动神经元受抑制
D. 梭外肌舒张
E. 梭内肌收缩
[判断题]测量电力通信信号,应在万用表量程范围内进行。
A.正确
B.错误
[单项选择]女,20岁,午后发热伴咳嗽,痰中带血1周。体检:左肩胛间区有湿啰音,血沉50mm/第1小时末,白细胞10.9×109/L,中性70%,胸片示左上肺斑片状阴影,其中有1cm×1cm透光区,最可能的诊断是()
A. 支原体肺炎
B. 肺炎球菌肺炎
C. 继发性肺结核
D. 肺真菌病
E. 支气管肺癌
[多项选择]机载定位与定向系统(POS)的组成部分包括()
A. CCD
B. GPS
C. IMU
D. LIDAR
E. lnSAR
[判断题] 驾驶机动车从高速公路进入减速车道后,应通过察看行驶速度表来控制车速,不能单纯凭感觉判断车速。
A.正确
B.错误
[不定项选择]类风湿性关节炎外表现为()。
A. 类风湿结节
B. 类风湿血管炎
C. 肺间质病变
D. 干燥综合征
[单选题]动火作业负责人应负责编制办理《动火安全作业证》并对动火作业负()责任。
A.主要
B.全面
C.次要
[单项选择]电烧伤后继发性出血往往发生在()
A. 伤后2~7天
B. 伤后1~3周
C. 伤后1~2个月
D. 伤后1年
E. 以上都不对
[单选题]C5a、C3a和C4a的作用是
A.溶解细胞、溶解细菌效应
B.调理作用
C.ADCC作用
D.清除免疫复合物
E.炎症介质作用
[判断题]客车报废须经铁路局批准,并报总公司运输局。()
A.正确
B.错误
[单项选择]对于跨越腕臂的锚段关节开关引线,最大驰度下应保证对水平腕臂管()mm以上。
A. 150
B. 200
C. 300
[判断题]旅客在乘车区间中,要求一段乘坐硬座车、一段乘坐软座车时,全程发售硬座客票,另收软座区间的软座票价。
A.正确
B.错误
[单选题] 隧道内设置的火灾报警设备的防护等级不应低于( )
A.IP45
B.IP55
C.IP65
D.IP75
[判断题]事故调查重在查明原因、吸取教训、举一反三,应当实事求是,尊重科学,充分运用信息化智能化等现代技术手段,做到证据可靠、结论可信、事故经过可复现。( )
A.正确
B.错误
[单选题]进行高压电能计量装置带电调换工作时,应填用(____)。
A.第一种工作票
B.第二种工作票
C.带电作业票
D.操作票
[多选题]下列智能变电站线路保护告警信息中,属于危急缺陷的是( )?
A.SV数据异常已造成装置告警影响保护正常动作
B.反复出现SV数据异常每次都可自动恢复
C.偶发并可自动恢复
D.链路中断
[单项选择]Questions 11 to 18 are based on the conversation you have just heard.
A. It is the first time they have been on a trip.
B. They cannot do what they like before.
C. They don’t have to care the time.
D. They have to travel by schedules now.
[判断题]集成交换层基于集成交互层所提供的系统集成能力。
[单项选择]
Directions:
Read the following passage. For each numbered blank there are four choices marked A, B, C and D. Choose the best one and mark your answers on ANSWER SHEET 1.
An important factor of leadership is attraction. This does not mean attractiveness in the ordinary sense, for that is a born quality (21) our control. The leader has, nevertheless, to be a magnet; a central figure towards whom people are (22) Magnetism in that sense depends, first of all, (23) being seen. There is a type of authority which can be (24) from behind closed doors, but that is not leadership. (25) there is movement and action, the true leader is in the forefront and may seem, indeed, to be everywhere at once. He has to become a legend; the (26) for anecdotes, whether true or (27) , character. One of the simplest devices is to be absent (28) the occasion when the leader might be (29) to be there, enough in its
A. in
B. on
C. at
D. under
[单项选择]测验结果的准确性或有效性的程度是()
A. 难度
B. 信度
C. 区分度
D. 效度
[单选题]再生障碍性贫血(A
A)()
A.有出血而无贫血
B.无出血亦无贫血
C.有贫血而无出血
D.贫血和出血程度一致
E.贫血和出血程度不一致
[单选题]发展是解决我国一切问题的基础和关键,发展必须是科学发展,必须坚定不移贯彻( )的发展理念。
A.创新、协调、绿色、开放、共享
B.创造、协调、生态、开放、共享
C.创新、统筹、绿色、开放、共享
D.创造、统筹、生态、开放、共享
[单项选择]Cars are involved in many accidents, and they ______ a lot of deaths.
A. contribute to
B. attribute to
C. result from
D. due to
[多项选择]《社会保险法》规定的工伤保险基金追偿权主要表现在以下哪几个方面?()
A. 对第三人的追偿权
B. 对未依法缴纳工伤保险费的用人单位的追偿权
C. 对已依法缴纳工伤保险费的用人单位的追偿权
D. 对有过错的工伤劳动者的追偿权
[单选题]有断路器(开关)和插拔式熔断器的回路停电,应先断开断路器(开关),并在负荷侧A相验明确无电压后,方可取下熔断器。
A.正确
B.错误
C.略
D.略
E.略
F.略
[单项选择]关于凝血酶时间(TT)的叙述,下列哪项是错误的?()
A. 正常人TT为16~18秒
B. 在被检血浆中加入标准凝血酶溶液,测定其凝固时间即TT
C. 又称凝血酶凝固时间(TC
D. 主要反映凝血过程第一阶段有无异常
E. 若超过正常对照3秒以上即为异常
[判断题]作业期间应继续保持通风,通风时不得使用纯氧。通风过程中不得中断,如突然停电或通风机停止工作,必须立即退出。
A.正确
B.错误
[单选题]检修及基建单位的()应事先送有关设备运维管理单位、调度控制中心备案。
A.工作许可人名单
B.工作票签发人、工作负责人名单
C.专责监护人名单
D.工作班成员名单
[单选题]压入式局部通风机和启动装置,必须安设在距离掘进巷道回风口不小于()m的进风流中。
A.5
B.10
C.20
D.30
[单选题]露天爆破按孔径.孔深分为深孔爆破和浅孔爆破。下列关于露天爆破的说法中,错误的是()。
A.炮孔采用人工装药时,不应过度挤压或分散装药
B.当发生装药卡堵时,不得用钻杆捣捅药包
C.浅孔爆破起爆后,应至少5min后方可进入爆破区检查
D.深孔爆破起爆后,应至少10min后方可进入爆破区检查
[单项选择]下列关于“自信是一点一点成功的积累”的看法正确的是?()
A. 赞同。自卑者可以变得自信,自负者难以回落到自信
B. 不赞同。自卑者可以变得自信,自负者也能回落到自信
C. 不赞同。自卑者不能变得自信,自负者难以回落到自信
D. 赞同。自卑者可以变得自信,自负者也可以回落到自信
[单项选择]小脑幕切迹疝最有意义的临床定位体征是()
A. 患侧肢体活动减少或消失
B. 对侧腹壁反射消失
C. 患侧瞳孔散大
D. 对侧肢体腱反射亢进
E. 患侧下肢病理反射
[判断题]《变电安规》组合绝缘的水冲洗工具进行工频泄漏试验,泄漏电流以不超过0.8m正确为合格,试验时间5min。
A.正确
B.错误
[单项选择]Man, so the truism goes, lives increasingly in a man-made environment. This places a special burden on human immaturity, for it is plain that adapting to such variable conditions must depend very heavily on opportunities for learning, or whatever the processes are that are operative during immaturity. It must also mean that during immaturity man must master knowledge and skills that are either stored in the gene pool or learned by direct encounter, but which are contained in the culture pool--knowledge about values and history, skills as varied as an obligatory natural language or an optional mathematical one, as mute as levers or as articulate as myth telling.
Yet, it would be a mistake to leap to the conclusion that because human immaturity makes possible high flexibility, therefore anything is possible for the species. Human traits were selected for their survival value over a four--to five-million-year period with a great acceleration of the selection process during the last h
A. Medical students in a course on human anatomy.
B. College students in an introductory course on archaeology.
C. Psychologists investigating the uses of human immaturity.
D. Biologists trying to trace the course of human evolution.
[多选题]隧道(明洞)标应标明( )。
A.隧道号或名称
B.长度
C.中心里程
D.方向
[单选题]根据《铁路交通事故调查处理规则》,铁路交通事故造成800万元直接经济损失,认定为()事故。
A.重大事故
B.一般A类事故
C.较大事故
D.一般B类事故
[简答题]EBV电子制动阀控制器,自动手柄位置包括运转位、初制动、全制动、抑制位、___、紧急位。