热门试题:
[单选题]变压器的额定电流等于绕组的额定容量除以该绕组的额定电压及相应的相系数( )。
A.三相为 1,单相为√3
B.单相和三相均为 1
C.单相和三相均为√3
[单选题]有人认为，所有的人文素质，最后都在是否“自觉”的内化中得到印证。人难免会迷茫、做错事、遇到各种挫折，关键就在于，能否有足够的、合理的文化资源和文化能力来纾解压力，以说服自我、超越自我。人要活出幸福的滋味，就必须得对自己有充分的认知。所谓自知之明，自知之后，才能明白自己的所作所为，也才能指导自己的所作所为。只有当我们客观地认知自己之后，许多事情才不会庸人自扰，才会安守本分，乐在其中。这段文字意在说明的是：( )
A.最困难的事情就是认识自己
B.我们应学会充分认知自己
C.庸人自扰多源于没有自知之明
D.人文素质最终体现在“自觉”上
[单选题]使用行灯电压不应大于36伏,进入潮湿密闭容器内作业不应大于()伏。
A.220
B.12
C.36
D.6
[判断题]紧急制动时，应迅速将自阀手柄推向紧急制动位，并立即解除接触网作业车牵引力，列车未停稳，可以移动自阀、单阀手柄实施缓解操纵。CG53)( )
A.正确
B.错误
[单项选择]女性，46岁。3个月前因胆石症在当地医院行胆总管十二指肠吻合，1天前突然出现右上腹痛、寒战、高热，呕血约1000ml，入院后立即输血。当输血10ml时，突然心前区出现压迫感，腰背部酸痛并出现血红蛋白尿，血压70/60mmHg(9.33/6.67kPa)。该病人可能发生
A. 发热反应
B. 循环超负荷
C. 变态反应
D. 溶血反应
E. 细菌污染反应
[单选题]变压器的( )，其动作电流整定按躲过变压器负荷侧母线短路电流来整定，一般应大于额定电流的 3-5 倍。
A.电流速断保护
B.过电流保护
C.差动保护
[单选题]营养不良的水肿型主要由下列哪种因素造成
A.喂养不当
B.蛋白质严重缺乏
C.疾病影响
D.总热量不足
E.先天不足
[填空题]对重要事项或者重大行动作出安排，奖惩有关单位及人员，变更或者撤销下级机关不适当的决定事项，可用（）。
[单选题]禾本科植物叶片和叶鞘相接处的背面(远轴面)有不同色泽的环状结构,称为( )。
A.叶舌
B.叶耳
C.托叶
D.叶环
[判断题]任何个人和组织不得窃取或者以其他非法方式获取个人信息，不得非法出售或者非法向他人提供个人信息。
A.正确
B.错误
[单项选择] Bill Gates, the billionaire Microsoft chairman without a single earned university degree, is by his success raising new doubts about the worth of the business world’’s favorite academic title: the MBA ( Master of Business Administration).
The MBA, a 20th-century product, always has borne the mark of lowly commerce and greed on the tree-lined campuses ruled by purer disciplines such as philosophy and literature.
But even with the recession apparently cutting into the hiring of business school graduates, about 79,000 people are expected to receive MBAs in 1993. This is nearly 16 times the number of business graduates in 1960, a testimony to the widespread assumption that the MBA is vital for young men and women who want to run companies some day.
"If you are going into the corporate world it is still a disadvantage not to have one," said Donald Morrison, Professor of marketing and management science. " But in the last five years or so, when someone says, ’’ Should I at
A. They are usually self-centered.
B. They are aggressive and greedy.
C. They keep complaining about their jobs.
D. They are not good at dealing with people.
[单项选择]雷管若在地面上堆放时，高度不得超过（）m。
A. 1
B. 1.2
C. 1.5
D. 1.8
[单项选择]What is the purpose of this conversation
A. To schedule the woman for classes next semester.
B. To discuss a change of major.
C. To file for graduation.
D. To drop a class.
[单项选择]输油管道连接的方法很多，以下哪种不属于常用的管道连接方法（）
A. 螺纹连接
B. 法兰连接
C. 焊接连接
D. 铆接
[单项选择]灌注水下混凝土时哪种情况将产生离析现象（）。
A. 含砂率偏低
B. 导管未埋入混凝土中
C. 拌合物和易性太好
D. 导管漏水
[多项选择]下列权利属于劳动权的有（）
A. 取得劳动报酬的权利
B. 平等就业和选择职业的权利
C. 获得劳动安全卫生保护的权利
D. 享受社会保险
[多选题]新投运的110(66)kV及以上电压等级电流互感器,对于明确要求不取油样的产品,确需(____)时应由生产厂家配合进行。
A.
补气
B. 补油
C. 取样
D. 放气
[判断题]按调味工艺分,调味分为一次性调味和多次性调味两种方法。（）
[判断题] 运行单位应结合实际需要,具备下列记录检测记录与运行维护管理记录()
A.正确
B.错误
[多项选择]在累进税率条件下，边际税率与平均税率的关系表现在( )。
A. 边际税率往往要大于平均税率
B. 边际税率的提高会带动平均税率的上升
C. 边际税率的升降直接影响到平均税率的高低
D. 边际税率与平均税率呈反方向变化
[判断题]对电务设备机房应严格机房管理和交接班管理，保证设备物理安全，严禁无关人员随意接近网络设备及其他相关设备。
A.正确
B.错误
[填空题]“大雪压青松，青松挺且直。欲知松高洁，待到雪化时”，这首诗的作者是（）。
[不定项选择题]共用题干
第一篇
The Northern Lights
The sun is stormy and has its own kind of weather.It is so hot and active that even the Sun's gravity cannot hold its atmosphere in check!Energy flows away from the Sun toward the Earth in a stream of electrified particles that move at speeds around a million miles per hour.These particles are called plasma （等离子体）,and the stream of plasma coming from the Sun is called the solar wind.The more active the Sun,the stronger the solar wind.
The solar wind constantly streams toward the Earth,but don't worry because a protective magnetic field surrounds our planet.The same magnetic field that makes your compass point north also steers the particles from the Sun to the north and south poles.The charged particles become trapped in magnetic belts around the Earth.When a large blast of solar wind crashes into the Earth's magnetic field,the magnetic field first gets squeezed and then the magnetic field lines break and reconnect.The breaking and reconnecting of the magnetic field lines can cause atomic particles called electrons trapped in the belts to fall into tile Earth's atmosphere at the poles.As the electrons fall to the Earth,they collide with gas molecules in the atmosphere,creating flashes of light in the sky.
Each atmospheric gas glows a different color.Oxygen and nitrogen glows red and green arid nitrogen glows violet purple.As these various colors glow and dance in the night sky,they create the Northern Lights and the Southern Lights.
Watching auroras（北极光）is fun and exciting, but normally you can only see them in places far north like Alaska and Canada.The movement of the aurora across the sky is usually slow enough to easily follow with your eyes but they can also pulsate（跳动）,flicker（闪烁）,or even move like waves.During solar maximum,5 auroras are seen as far south as Florida,even Mexico!Auroras often seem to be very close to the ground,but the lowest aurora is still about 100 kilometers above the ground,a distance much higher than clouds are formed or airplanes can fly.A typical aurora band can be thousands of kilometers long,a few hundred kilometers high,but only a few hundred meters thick.
We hope you are able to travel to far north places like the Arctic Circle and see the Northern Lights at least once during your lifetime.We know you will never forget it!
What happens when solar wind comes to the Earth?
A.It is trapped in magnetic belts around the Earth.
B.A protective magnetic field is formed at the same time.
C.It destroys the protective magnetic field surrounding the Earth.
D.It breaks magnetic field lines and does severe damage to the Earth.
[单选题]铁路供电设备应满足下列要求:一级负荷应有两上( ),保证不间断供电,二
级负荷应有可靠的寺用电源。
A.电源开关
B.共用电源
C.独立电源
D.开关柜
[单项选择]治疗效果最差的疼痛是
A. 外伤性疼痛
B. 精神性疼痛
C. 末梢性疼痛
D. 中枢性疼痛
E. 神经障碍
[多选题]依据《胜利油田安全培训与安全能力提升管理细则》,管理原则与要求包括( )。
A.依法合规原则
B.提升安全能力原则
C.教考分离原则
D.实操培训与理论培训相结合原则
[单项选择]患者，女，32岁，因口腔黏膜上有白色覆盖物3个月就诊。检查：咽部和软腭可见白色的假膜，可擦去，留下红色基底。自述半年前因车祸有过输血，近3个月来经常发热和腹泻，体重明显减少。根据患者的临床表现和病史，应考虑的诊断是（）
A. 艾滋病
B. 球菌性口炎
C. 慢性红斑型念珠菌性口炎
D. 淋病
E. 梅毒性口炎
[多项选择]工资费用的分配就是按照工资用途，将其记入的成本费用账户包括( )。
A. “生产成本”
B. “制造费用”
C. “管理费用”
D. “在建工程”
[判断题]呼吸防护用品应保存在清洁.干燥.无油污.无阳光直射和无腐蚀性气体的地方。
A.正确
B.错误
[判断题](判断题, 1 分)
建设性冲突,又称功能失调的冲突,是指对组织有消极影响的冲突。
A.正确
B.错误
[多选题]作业人员应被告知其作业现场和工作岗位存在的（ ）。
A.危险因素
B.设备缺陷
C.防范措施
D.事故紧急处理措施
[单项选择]外阴尖锐湿疣的病因是（）
A. 人乳头状病毒
B. 性伴侣不稳定
C. 宫颈受损后细菌感染
D. 雌激素水平过高
E. 阴道内清洁度改变
[单选题]机械根管预备注意事项如下，除外(1分)
A.已确定了根管的工作长度
B.术前检查器械的状况
C.选择好第一支根管挫
D.按器械型号顺序进行
E.扩挫力量越大越好
[填空题] 课的类型大致可分为________ 和_________ 两大类。
[判断题]电镀厂灾害事故处置后，必须进行人员和装备洗消。（）
A.正确
B.错误
[多选题]Ⅲ类反光膜的特点()。
A.称超高强级反光膜
B.使用寿命一般为10年
C.通常为密封胶囊式玻璃珠型结构
D.用于永久性交通标志和作业区设施
[判断题]《ATA单证删》项下进境的展品自货物进境之日起6个月内应当复运出境，特殊情况要延长，延长期不超过6个月的可以向直属海关申请延期，延长期超过6个月的需经海关总署批准。( )
