热门试题:
[单项选择]自力式压力调节器的调节阀分（）两种。
A. A型和B型
B. 气开式和气关式
C. 单座和双座
D. 膜头式和活塞式
[单选题]一只温度计量程为0—1000℃，量程内指针最大转角为270°，此表灵敏度为（ ）。
A.0.2.7℃
B.0.27°/℃
C.0.27
D.270°/℃
[单项选择]
How Ozone Pollution Works
Introduction to How Ozone Pollution Works
The weather report on the radio or TV tells you that it is going to be sunny and hot and that an orange ozone alert has been issued. What is ozone What does an orange alert mean Why should you be concerned about it
In this article, we will examine what ozone is, how it is produced, what health hazards it poses and what you can do to reduce ozone pollution.
Ozone is a molecule of three oxygen atoms bound together (O
3). It is unstable and highly reactive. Ozone is used as a bleach, a deodorizing agent, and a sterilization agent for air and drinking water. At low concentrations, it is toxic.
Ozone is found naturally in small concentrations in the stratosphere, a layer of Earth’s upper atmosphere. In this upper atmosphere, ozone is made when ultraviolet light from the sun splits an oxygen molecule (O
2), forming two single
A. a bleach
B. a oxidizer
C. a deodorizing agent
D. a sterilization agent for air and drinking water
[填空题]远程医学的目的是为了增加医疗服务和医学教育在时间和( )的覆盖面。
[单选题]以下不属于天然甜味剂的是( )。
A.干草
B.天门冬酰苯丙氨酸甲脂
C.甜菊精
D.糖精
[单选题]发生重大、恶性案件，或一年内发生同质同类案件的，根据责任认定情况，银行业金融机构应当对( )从重处理。
A.法人代表
B.部门负责人
C.有关案件责任人员
D.客户经理
[判断题]信号中修应推广和采用先进的机具和检测手段，配备必要的交通工具，提高中修作业机械化水平和预制水平，改善现场作业条件和生活设施。
A.正确
B.错误
[填空题]某二叉树中度为2的结点有18个，则该二叉树中有（）个叶子结点。
[单选题]低压带电作业时，作业范围内电气回路的剩余电流动作保护装置应（ ）。
A.禁止投入
B.随意
C.投入运行
D.停止运行
[单选题]客货共线铁路线间距，160km/h＜v≤200km/h区间双线线间最小距离为（ ）。
A.4200mm
B.4400mm
C.5000mm
D.4000mm
[判断题]爆破施工时必须采取有效措施防止造成周边建构筑物破坏。
A.正确
B.错误
[单选题]—年前4个月，我国对主要贸易伙伴进出口总值的同比增长速度超过3％的国家(
地区)有：
A.4个
B.5个
C.6个
D.7个
[填空题]CR400AF动车组转向架采用能有效地抑制转向架（ ），提高转向架蛇行运动临界速度的各种措施。
[多项选择]装载机检查停放制动器功能的测量方法有（）
A. 启动机器直接面向前方，然后空斗驶上1/5斜度的道路。
B. 驾驶到坡顶。
C. 踩住制动器，使装载机停止行驶，将方向操作杆返回空挡位置，关闭发动机。
D. 将停放制动器开关置于ON位置，松开制动踏板，检查机器是否下滑或保持在原位。
[单项选择]属于继续医学教育的内容是：（）
A. 新理论，新知识
B. 经验体会
C. 新技术，新疗法
D. 以上均是
[单项选择]《花儿与少年》是（）
A. 甘肃民歌
B. 青海民歌
C. 宁夏民歌
D. 陕西民歌
[填空题]FOCKE350小盒包装机烟支供给处理系统由烟库、（）、推烟机构、烟组通道、组烟模轮、烟组检测、烟组通道、烟组对齐装置等组成。
[单项选择] Programs and Capital Projects of the Andre Agassi
The Andre Agassi Charitable Foundation has always and will continue to fund organizations which offer programs that consistently carry out the mission of the Foundation. The following organizations are fine examples.
THE ANDRE AGASSI BOYS & GIRLS CLUB
In 1997, Andre Agassi Boys & Girls Club first opened its doors. The club sees as many as 400 members a day in the summer and well over 2,000 members during the year. This 25,000-square-foot facility offers a full spectrum of activities, reinforcing educational, recreational and social growth to its members. It also features an indoor basketball court, outdoor tennis courts, a computer lab, library and teen center.
Team Agassi is the name of the junior tennis team at the Agassi club. A majority of the players had absolutely no previous tennis experience prior to joining the team, which now boasts four nationally ranked players as well as a number of regio
A. Y
B. N
C. NG
[单选题]在站内线路上检查、修理、整备车辆时，应在列车两端来车方向的左侧钢轨上，设置带有脱轨器的固定或移动信号牌（灯）进行防护，前后两端的防护距离均应不小于（ ）。
A.10 m
B.15 m
C.20 m
D.25 m
[单项选择] The Attitude For Computers
As Dr. Samuel Johnson said in a different era about ladies preaching, the surprising thing about computers is not that they think less well than a man, but that they think at all. The early electronic computer did not have much going for it except a marvelous memory and some good math skills. But today the best models can be wired up to learn by experience, follow an argument, ask proper questions and write poetry and music. They can also carry on somewhat puzzling conversations.
Computers imitate life. As computers get more complete, the imitation gets better. Finally, the line between the original and the copy becomes unclear. In another 15 years or so, we will see the computer as a new form of life.
The opinion seems ridiculous because, for one thing, computers lack the drives and emotions of living creatures. But drives can be programmed into the computer’’s brain just as nature programmed them into our human brains
A. Right
B. Wrong
C. Not Mentioned
[多项选择]气动薄膜双座调节阀是自动控制系统中最常用的执行器之一，它的组成部分有( )。
A. 气动薄膜执行机构
B. 直通双座阀
C. 偏心旋转调节阀
D. 球阀
[单选题] 安全生产管理的目标是减少、控制危害和事故，尽量避免生产过程中由于( )所造成的人身伤害、财产损失及其他损失。
A.事故
B.管理不善
C.危险源
D.事故隐患
[判断题]客户侧低压验电前应先在低压有电部位上试验，以验证验电器或测电笔良好。
A.正确
B.错误
[多项选择]阴阳偏盛的治疗方法有（ ）
A. 寒者热之
B. 热者寒之
C. 阳中求阴
D. 阴病治阳
E. 阳病治阴
[单选题]存单质押贷款期限( )质押存单的到期日。
A.不得超过
B.等于
C.可以晚于
D.等于或晚于
[多选题] 洗消剂是指通过物理、化学和生物作用，能将有毒有害的危险化学品消除的化学物质。较为典型的洗消剂有：( )
A.溶剂型洗消剂
B.吸附型洗消剂
C.酸碱中和型洗消剂
D.氧化氯化型洗消剂
[单选题]能有效结合组织纵向垂直管理和横向水平管理的组织结构形式是？
A.直线制
B.直线职能制
C.事业部制
D.矩阵制
[单选题]第一、二种工作票和带电作业工作票的有效时间，以批准的（ ）为限。
A.工作时间
B.申请时间
C.停役时间
D.检修期
[单选题]常用建筑结构按照建筑结构的体型划分为：单层结构、多层结构、高层结构、（ ）等。
A.筒体结构
B.桁架结构
C.网架结构
D.大跨度结构
[多选题]使用折叠式手闸，须在停车时（ ）后方可使用。
A.竖起闸杆
B.确认方套落下
C.月牙板关好
D.插销插上
[单项选择]下面________不是数据库系统必须提供的数据控制功能。
A. 安全性
B. 可移植性
C. 完整性
D. 并发控制
[单选题]设备动态管理的最佳方案=运用PDCA循环方法+（ ）
A.合理的检修和维护周期
B.计划值管理规划
C.经济分析和评估
[单项选择]液压支架依照（）的次序动作，称为滞后支护方式。
A. 推溜—降架—移架—升架
B. 推溜—移架—降架—升架
C. 移架—降架—推溜—升架
D. 降架—移架—升架—推溜
[多项选择]财政政策的优势有( )。
A. 直接刺激消费和投资
B. 见效快，时滞短
C. 调节国民收入和财富的分配
D. 弥补市场缺陷
E. 对调节物价总水平作用突出
[单项选择]男性，60岁。有冠心病史，常发生晕倒而住院，首选检查为（）。
A. 心电图
B. 心脏彩超
C. 头颅CT
D. Holter
E. 胸部CT
[判断题]每个报警区域内应均匀设置火灾警报器，其声压级不应小于80dB
A.正确
B.错误
