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[单选题](28223)液压传动装置实质上是一种( )装置。(1.0分)
A.运动传动
B.力的传递
C.液体变换
D.能量转换

热门试题:

[多选题]信号集中监测系统包括( )及数据传输设备,应全程联网,实现远程诊断和故障报警功能。
A.站机
B.采集设备
C.服务器
D.各级终端
[判断题]存查煤样粒度应小于1mm。
[多选题] 民航地区管理局作出的危险品航空运输许可应当包含下列内容( )
A. 说明经营人应按本规定和《技术细则》的要求,在批准的经营范围内实施运行
B. 批准运输的危险品类别
C. 许可的有效期
D. 必要的限制条件
[判断题]医院管理向职业化、科学化、系统化、信息化发展。()
[多项选择]目前使用最广泛的抗焦虑药有()
A. 阿普唑伦
B. 氯氮
C. 安定
D. 卡马西平
E. 苯妥英钠
[单选题]注汽锅炉燃料一般采用天然气或乳化油,其中被加热的介质水应具备( )条件,防止锅炉发生意外事故或降低炉管使用寿命。( )
A.低含盐量
B.硬度、机杂,含油、含氧达标
C.经过化学处理
D.添加除氧剂
[单选题]人体与6--10KV有安全遮栏带电体之间最小安全距离不小于( )。
A.1.00m
B.0.70m
C.0.60m
D.0.35m
[单选题]

患者,女,45岁,急性肺炎收入院,护士立即为患者测量生命体征。测口腔温度时,患者不慎咬破体温计,吞下水银后应立即


A.

催吐或洗胃


B.

口服蛋白或牛奶


C.

大量补液,冲洗毒物


D.

服解毒药物


E.

清除玻璃碎屑

[单选题]居民客户计量故障、差错处理到达现场时间:城区范围(____)分钟、农村地区(____)分钟,特别偏远地区(____)小时。
A.30,60,1.5
B.45,90,2
C.45,60,1.5
D.30,90,2
[单选题]搜救水域遇险人员时,组织灾情侦察的方式有:(1)询问知情人,初步了解遇险人员的位置和数量以及受水势威胁的程度等情况;(2)利用无人机或消防舟(艇)进行水域侦察,查明遇险人员的具体位置和数量、被困状态情况,()。
A.联络医护人员
B.评估救助可行性
C.迅速展开救援行动
D.确定救人的途径和方式
[多项选择]对财政资金实行集中收缴与支付的制度称之为( )。
A. 国库单一账户制度
B. 国库分散账户制度
C. 国库集中收付制度
D. 国库双重收付制度
E. 国库双重账户制度
[单项选择]最强大的脊柱伸肌是()
A. 背阔肌
B. 斜方肌
C. 竖脊肌
D. 腰大肌
E. 腰方肌
[填空题]巡道工在当班巡回时,应打紧浮起道钉,拧紧松动的螺栓,清扫无人看守道口的( )。
[单选题]由于设备原因,()与检修设备之间连有断路器(开关),在接地刀闸和断路器(开关)合上后,在断路器(开关)的操作处或机构箱门锁把手上,应悬挂“禁止分闸!”标示牌。
A.停电设备
B.非检修设备
C.接地刀闸
D.隔离开关
[单选题]737NG整流罩防冰活门(TAI)在地面进行测试时,气源可以用:
A.APU
B.地面气源
C.发动机
D.以上ABC都可以
[填空题]长江中游成为游览地的三大名矶是______矶、______矶和______矶。
[单选题]桥跨结构在计算荷载最不利组合作用下,横向倾覆稳定系数不应小于( )。
A.1.1
B.1.2
C.1.3
D.1.4
[单项选择]The ethical judgments of the Supreme Court justices have become an important issue recently. The court cannot _1_ its legitimacy as guardian of the rule of law _2_ justices behave like politicians. Yet, in several instances, justices acted in ways that _3_ the court’s reputation for being independent and impartial. Justice Antonin Scalia, for example, appeared at political events. That kind of activity makes it less likely that the court’s decisions will be _4_ as impartial judgments. Part of the problem is that the justices are not _5_by an ethics code. At the very least, the court should make itself _6_to the code of conduct that _7_to the rest of the federal judiciary. This and other similar cases _8_the question of whether there is still a _9_between the court and politics. The framers of the Constitution envisioned law _10_having authority apart from politics. They gave justices permanent positions _11_they would be free to _12_ those in power and have no need to _1
A. line
B. barrier
C. similarity
D. conflict
[单选题]仅开行客车的350km/h高铁线路,出站信号机与既有线的出站信号机不同,增加了()显示。
A.绿黄
B.双黄
C.红白
D.白
[单项选择]某人,因工作压力大,多年来经常反复出现心烦、心跳过速、胸部不适、出汗,经心电图、血压、血脂、心脏多普勒检查均正常。这个患者有可能为( )。
A. 躯体疾病
B. 心身障碍
C. 心理症状
D. 神经衰弱
E. 精神疾病
[判断题]氧气是助燃性气体,它与油接触时,可能引起燃烧和爆炸。( )
A.正确
B.错误
[单项选择]根据()可确定液体生产、加工、储存的火灾危险性分类。
A. 燃点
B. 着火点
C. 闪点
D. 自燃点
[单项选择]《2000年国际贸易术语解释通则》中,卖方义务最大,买方义务最小的术语是( )。
A. EXW
B. FAS
C. DDU
D. DDP
[单项选择]在Word2007中打印文档,下列说法不正确的是()。
A. 在同一页上,可以同时设置纵向和横向打印
B. 在同一文档上,可以同时设置纵向和横向两种页面方式
C. 在打印预览时可以同时显示多页
D. 在打印时可以指定需要打印的页面
[判断题]用户变、配电站的工作许可人应是持有效证书的高压电气工作人员。( )
A.正确
B.错误
[填空题]重点旅客是指老、()、病、残、孕旅客。
[单选题]不作为栓剂质量检查的项目是
A.融变时限测定
B.重量差异检查
C.刺激性试验
D.药物溶出速度与吸收试验
E.稠度检查
[单选题]不同型的电缆之间()直接连接。
A.可以
B.必须
C.严禁
[单选题]医务人员进行自我道德评价的方式是( )
A.名誉
B.效果
C.感觉
D.动机
E.良心
[判断题]
Xx断路器SF6气压低告警属于一次设备异常告警信号。
A.正确
B.错误
[不定项选择题]共用题干 Rainmaking

1 The idea of rainmaking is almost as old as man,but it was not until 1946 that man succeeded in
making rain.In ancient times,rainmakers had claimed to bring rain by many methods:dancing,singing,
killing animals(including humans).
2 For a long time,men have understood where rain comes from.Water from the surface of oceans and
lakes becomes part of the air,where it forms clouds from which rain falls.But exactly what starts the forma-
tion of raindrops was not known until quite recently.A man named John Aitken proved that drops of water
gather around tiny bits of dust or other matter. The centers of the drops are so small that the human eye can-
not see them.Without such centers,it seems raindrops do not form.
3 During World War Ⅱ,Dr. Irving Langmir,and his assistant Schaefer,were hired by the General
Electric Company to study how and why ice forms on the wings of airplanes.They went to a mountain in New
Hampshire,where snowstorms are common and cold winds blow. They were surprised to find that often the
temperature of the clouds surrounding them was far below the freezing point,and yet ice did not form in the
clouds.
4 After the War,Schaefer experimented with a machine that created cold,moist air similar to the air
found in clouds.To imitate the moist air of a cloud.Schaefer would breathe into the machine.Then he
would drop into the freezer a bit of powder,sugar,or some other substance.For weeks and months he tried
everything he could imagine.Nothing happened.No crystals of ice were formed.None of the substances
would serve as the center of a snow crystal or raindrops.
5 One July morning,Schaefer was dropping in bits of various substances and watching the unsuccessful
results.Finally,a friend suggested that they go to eat lunch and Schaefer went with him.As usual,he left
the cover of the freezer up,since cold air sinks and would not escape from the box.
6 Returning from lunch,Schaefer found that the temperature of the freezer had risen to a point higher
than that required for ice crystals to remain solid.There were two choices now.He could close the cover and
wait for the freezer itself to lower the air temperature,or he could make the process occur faster by adding dry
ice a gas in solid form that is very,very cold.He chose the latter plan.As he dropped the steaming white
dry ice into the freezer,he happened to breathe out a large amount of air. And there,before his eyes,it
happened ! He had made ice crystals,not by adding centers to the moisture,but by cooling the breath so
much that the liquid had to form crystals!Then he began to blow his breath into the freezer and drop large
pieces of dry ice through it to create crystals which became a tiny snowstorm falling slowly to the floor of his
laboratory.
7 After planning carefully,Schaefer made an experiment by dropping dry ice from his plane to the
clouds below him.As was expected,snow formed and fell from the bottom of the cloud.Schaefer succeeded.
He made history. Schaefer successfully made a field experiment on rainmaking after planning_________.
A.imaginatively
B.recently
C.carefully
D.unscientifically
E.accidentally
F.satisfactorily
[单项选择]肝硬化患者出现全血细胞减少,最主要的病因是哪项()。
A. 营养吸收障碍
B. 脾功能亢进
C. 功能性肾衰竭(肝肾综合征)
D. 上消化道出血
E. 血容量增加
[单项选择]女性患者,56岁,脑外伤昏迷合并肺部感染,应采取的最重要的措施是
A. 翻身、拍背
B. 吸氧、药物雾化吸入
C. 及时气管切开、抗感染
D. 吸痰
E. 半坐卧位
[单选题](B757)可从何处进行一次RA自检:
A.RA控制面板
B.相应一侧的EFIS控制面板
C.RA收发机前面板
D.相应一侧的EFIS SG
[单选题]三相负载对称指的是它们的()相等。
A.电流
B.电压
C.阻抗
D.电磁性
[多选题] 物联网2/3/4G终端和手机终端共用网络中的哪些部分?( )
A.物联网短信中心
B.无线基站
C.漫游地核心网SGSN/MME
D.物联网八大区PGW
E.物联网HSS

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