热门试题:
[简答题]请简述高压冲洗车的主要组成、工作原理及功能。
[单选题]干式电压互感器检修时,接地点连接牢固可靠;螺栓材质及紧固力矩应符合规定或厂家要求。互感器应有明显的接地符号标志,接地端子应与设备底座可靠连接,并从底座接地螺栓用( )接地引下线与地网可靠连接。
A.一根
B.两根
C.三根
D.四根
[多选题]Ⅱ类手持式电动工具适用的场所为( )。
A.潮湿场所
B.金属构件上
C.锅炉内
D.地沟内
E.管道内
[单选题]在信号微机蝙捌系统中( )转换单元负责监测KZ、DZ电压是否正常。
A.J3
B.J4
C.J5
D.J7
[单项选择]项目管理团队正在分析缺陷并尝试将项目问题的原因剥离出来。他们已经通过可用数据分离出两个变量。他们怀疑问题是由于一个变量影响另一个而产生的复合效应。他们想看看在这两个变量之间是否存在着关系。以下哪一项可以帮助他们确认这一点?()
A. 趋势图
B. 帕雷托图
C. 控制图
D. 散点图
[单选题]最高运行速度为120km/h的特快货物班列,其紧急制动距离的限值为()。
A.800m
B.1100m
C.1400m
D.2000m
[单选题]KP51-2的动作范围值为( )kPa。
A.750~900
B.750—825
C.825~900
[单项选择]通过出让获得的土地使用权转让时,受让方应当遵守原出让合同附具的规划设计条件,并由哪方向城市规划行政主管部门办理登记手续
A. 出让方
B. 受让方
C. 中介方
D. 出让与受让双方
[单项选择]机动车进、出环形路口时()。
A. 进路口的先行
B. 出路口的先行
C. 有条件的先行
[填空题]各部门负责本部门的安全管理工作。组织落实事故防范及重大危险源识别与监控、隐患排查整治的闭环管理和职业健康防治工作,开展日常及专项安全检查工作,每( )安全生产全面检查;
[单项选择]在物业管理适用的各类文书中,( )的规范性最强。
A. 行政公文
B. 事务文书
C. 制度文书
D. 礼仪文书
[多选题]7.调动( )车辆时,连挂或带此种车辆在接近连挂车辆前必须一度停车。
A.易窜动货物
B. 专运
C. 公务
D. 特种用途
[填空题]高速缓冲存储器和______属于易失性存储器。
[单选题]一个增音段内导线直流电阻不平衡值,铜线应小于()Ω。
A.2
B.3
C.4
D.5
[多选题]高空作业车(包括绝缘型高空作业车、车载垂直升降机)应按GB/T9465的规定进行()。
A.试验
B.维护
C.保养
D.驾驶
[多选题]带电断、接空载线路所接引线长度应适当,与( )应有足够安全距离,连接应牢固可靠。
A.周围接地构件
B.带电线路
C.作业人员
D.不同相带电体
[单选题]200km/h~250km/h线路轨道静态几何尺寸容许偏差管理值中水平经常保养为( )。
A.3mm
B.2mm
C.5mm
D.4mm
[单选题] "为保持氮平衡,成人每天的蛋白质需要量是多少?
A.最低需要20克
B.最低需要30-50克
C.55克
D.60克 "
[单选题]不属于锚段的作用的是()。
A.缩小事故范围
B.便于加张力补偿装置
C.缩小因检修而停电的范围
D.防止由于各种原因而使导线向一侧滑动
[单项选择]MZ—1000型焊机是()焊机。
A. 电渣焊
B. 氩弧焊
C. 埋弧自动焊
[多选题]扩眼工具是用于扩大井眼直径的井下工具,按工作方式分为()扩眼工具。
A.机械式
B.随钻
C.水力式,
D.钻后
[单项选择]A team of international researchers has found new evidence that an endangered subspecies of chimpanzee is the source of the virus that causes acquired immune deficiency syndrome (AIDS) in humans. Experts said the finding could lead to new treatments for AIDS and contribute to the development of a vaccine against the disease.
The research team said the chimp -- a subspecies known as Pan troglodytes native to west central Africa carries a simian immunodeficiency virus (SIV) that is closely related to three strains of human immunodeficiency virus (HIV), the virus that causes AIDS. One of these strains, HIV-1, has caused the vast majority of the estimated 30 million HIV infections around the world.
The researchers are uncertain when the chimp virus, called SIVcpz (for simian immunodeficiency virus chimpanzee), first infected humans, although the oldest documented case of HIV has been linked to a Bantu man who died in Central Africa in 1959. But they said the virus, which does no
A. more and more wild chimpanzees are being slaughtered.
B. AIDS virus is difficult to be killed and controlled.
C. it is not easy to repair people’s deficient immune systems.
D. many dangerous viruses are being transmitted to humans.
[单选题]当看涨期权的执行价格低于当时的标的物价格时,该期权为( )。
A.实值期权
B.虚值期权
C.内涵期权
D.外涵期权
[单项选择]My father did not go to New York; the doctor suggested that he ______ there.
[单选题]超声波雾化接通电源后要预热( ),再开雾化开关。
A.10 秒钟
B.1 分钟
C.3 分钟
D.10 分钟
[单选题]夜间在右前方见到如右图所示号灯的船舶,该船是:______。( )
A.监督艇在航
B.要求减速的船舶
C.航标艇在航
D.机动船在捕鱼
[多选题]下列属于失爆的情况有( )。
A.隔爆外壳内有锈皮脱落
B.隔爆结合面严重锈蚀
C.密封挡板不合格
D.外壳连接螺丝不齐全
[单选题]长期停车,火炬系统应切断()。
A.除氮气外气体
B.原料气源
C.蒸汽源
D.所有可燃气源
[判断题]根据《胜利油田危险化学品安全管理办法》,公共事业管理部、安全环保质量管理部等主管部门对油田危险化学品实施全过程监督管理,是危险化学品管理的责任主体。
A.正确
B.错误
[单项选择]上腹部损伤后,出现右上腹及背部疼痛,可向右肩部及右睾丸放射,呕吐物为血性,查体无腹膜刺激征,直肠指检可在骶前触及捻发音。关于该病的治疗错误的是()
A. 术后应行减压手术
B. 探查既要迅速敏捷又要仔细全面
C. 腹膜后血肿、胆汁染色和捻发音是该病的典型表现
D. 关键在于是否早期手术治疗
E. 如需要放置引流T管,7天内即可拔除,以防感染
[单选题]井下每一个水平到上一个水平和各个采(盘)区都必须至少有()个便于行人的安全出口,并与通达地面的安全出口相连。
A.1
B.2
C.3
[单选题]低电压继电器的返回系数(____)。
A.等于0
B.大于1
C.小于1
D.等于1
[判断题]电气设备故障或因漏电而引起火灾时,应首先立即切断电源,然后再灭火。
A.正确
B.错误
[判断题]大型养路机械运行期间,运行司机应按日填写大型养路机械运行日志,详细记录设备运行情况。
A.正确
B.错误
[单项选择]
Passage Three
An employer has several choices he can consider when he wants to hire a new employee. First, he may look within his own company. But if none of the present employees are suitable for the position, he will have to look outside the company. If his company has a personnel office, he can ask them to help find qualified applicants.
There are other valuable sources the employer can use, such as employment agencies, professional societies and so on. He can also advertise in the newspapers and magazines and ask prospective candidates to send in resumes.
The employer has two kinds of qualifications to consider when he wants to choose from among applicants. He must consider both professional qualifications and personal characteristics. A candidate’s professional qualifications include his education, experience and skills. These can be listed on a resume. Personal characteristics must be evaluated through interviews.
"Professional qual
A. good health
B. skills
C. experience
D. education
[单项选择]
Hospital Mistreatment
According to a study, most medical interns report experiencing mistreatment, including humiliation by senior doctors,
(51) threatened, or physical abuse in their first year out of medical school.
The findings come from analysis of the
(52) a 13-page survey mailed in January 1991 to 1,733 second-year residents. The survey and
(53) appear in the April 15th issue of the Journal of the American Medical Association.
Overall, out of the 1,277 residents
(54) completed surveys, 1,185 said that they had experienced at least one incident of mistreatment in their intern year.
(55) reporting incidents where they were abused, more than 45% of the residents said they had witnessed at least one incident where other persons
(56) false medical records. Moreover, nearly three quarters of the residents said they had witnessed mistreatment of patents by other residents, att
A. In spite of
B. Therefore
C. Although
D. So
[多选题]下列藏毒方式属于利用交通运输工具直接运送的是:( )
A.藏于摩托车油箱
B.藏于汽车底盘
C.藏于挖空的木材
D.藏于自行车踏板中