热门试题:
[单选题]单开道岔中，尖轨前第一拉杆的中心位置距尖轨实际尖端（ ）。
A.330 mm
B.380 mm
C.490 mm
D.510mm
[单项选择]The government had （ ） them permission to leave the country.
A. promised
B. attributed
C. granted
D. qualified
[判断题]消费者权益保护法意义上的受害者只能是购买者或者使用者。
[判断题]运营时刻表以列车运行图为依据编制，是运行图的表格化。
A.正确
B.错误
[单项选择]在项目寿命周期成本分析中，为了权衡系统设置费中各项费用之间的关系，可采取的措施是( )。
A. 进行节能设计以降低运行费用
B. 采用整体结构以减少安装费用
C. 培训操作人员以减少维修费用
D. 改善设计材质以降低维修频度
[多项选择]乘人车信号员一定要尽职尽责，把乘车人员安全运送到地点，保证本次列车的人身安全，不准坐在车上（）、不拿行车路线牌。
A. 睡觉
B. 不报站
C. 挂防护链
D. 不瞭望
[单选题]加快完善社会主义市场经济体制。经济体制改革必须以（）和（）为重点，实现产权有效激励、要素自由流动、价格反应灵活、竞争公平有序、企业优胜劣汰
A.完善产权制度，要素市场化配置
B.要素市场化配置，建立现代财政制度
C.完善产权制度，创新和完善宏观调控
D./
[单选题] 个人防护装备的穿戴必须要严格遵守操作规程和(),确保防护效果。
A.个人习惯
B.技术
C.相关标准
D.要求
[单项选择]计算机通信中，信道上的基带信号是指 (45) ，宽带信号是指 (46) 。
A. 信道上的直流信号直接传输
B. 信道上的交流信号直接传输
C. 信道上的模拟信号直接传输
D. 信道上的数字信号1或0直接表示两种不同的电压，然后送到线路上传输
[单项选择]关于药物的转运，正确的是（）
A. 被动转运速度与膜两侧浓度差无关
B. 简单扩散有饱和现象
C. 易化扩散不需要载体
D. 主动转运需要载体
E. 滤过有竞争性抑制现象
[判断题]无论何种车型，一般主销后倾角均是不可调的。
A.正确
B.错误
[单选题]怪味是( )菜系的特色味型。
A.淮扬菜系
B.鲁菜系
C.粤菜系
D.川菜系
[单项选择]ST段抬高性心肌梗死，其心电图表现不包括（）
A. T波倒置
B. 宽而深的Q波
C. ST段抬高呈弓背向上型
D. 肺型P波
E. 在背向心梗区的导联则出现R波增高，ST段压低和T波直立
[单选题]机械加压送风防烟设施由（ ）构件组成①送风门口
② 送风管道
③ 送风机
④ 防烟部位
⑤ 风机控制柜
A.①②③④
B.②③④⑤
C.①③④⑤
D.①②③④⑤
[单选题]我国现阶段建设工程安全生产管理必须坚持( )的方针。
A.安全第一、预防为主、综合治理
B.事中控制与事后控制相结合
C.经济效益第一
D.技术先进
[单项选择]患儿。3岁．惊厥反复发作入院。为防止该患儿惊厥时外伤。以下处理哪项错误（）
A. 将纱布放在患儿的手中
B. 移开床上一切硬物
C. 用约束带捆绑四肢
D. 床边设置防护栏
E. 压舌板裹纱布置上、下磨牙之间
[单项选择]《建筑施工安全技术统一规范》GB50870-2013规定，机械设备和施工机具使用前应进行（）
A. 检验检测
B. 安全检查
C. 交接验收
D. 性能检测
[多选题]行政监督中的社会监督包括（ ）。
A.民主党派监督
B.工青妇组织监督
C.社会舆论监督
D.公民监督
[单选题]梭阀可视为()的一种特殊形式。
A.单向阀
B.溢流阀
C.换向阀
D.节流阀
[多选题]对无法进行直接验电的设备、高压直流输电设备和雨雪天气时的户外设备，可以进行间接验电，即通过设备的（）及各种遥测、遥信等信号的变化来判断。
A.机械指示位置
B.电气指示
C.带电显示装置
D.仪表
[单选题]新建300 km/h及以上铁路、长度超过（ ）km的隧道及隧道群地段，可采用无砟轨道。
A.1
B.2
C.3
D.4
E.6
F.8
[单选题]客户关系管理的终极目标是( )的最大化。
A.客户资源
B.客户资产
C.客户终身价值
D.客户关系
[单项选择]影响牙周疾病流行的主要因素是（）
A. 地区分布
B. 时间分布
C. 年龄状况
D. 民族分布
E. 口腔卫生
[单项选择]西魏的（）是我国历史上第一次以“式”为形式的法规汇编。
A. 《大统式》
B. 《封诊式》
C. 《户调式》
D. 《章程品式》
[不定项选择题]共用题干
The World's Best-Selling Medicine
Since ancient times,people all over the world have used willow to stop pain. The willow tree contains salicylic acid（水杨酸）.This stops pain, but there is one problem. Salicylic acid also hurts the stomach. In 1853,a French scientist made a mixture from willow that did not hurt the stomach.
However,his mixture was difficult to make,and he did not try to produce or sell it.
In 1897,in Germany,Felix Hoffmann also made a mixture with salicylic acid. He tried it himself first and then gave it to his father because his father was old and in a lot of pain.
His father's pain went away,and the mixture did not hurt his stomach.
Hoffmann worked for Bayer,a German company. He showed his new drug to his manager,who tested the drug and found that it worked well.Bayer decided to make the drug.
They called it aspirin and put the Bayer name on every pill.
Aspirin was an immediate success. Almost everyone has pain of some kind,so aspirin answered a true need. Aspirin was cheap,easy to take,and effective. It also lowered fevers.
Aspirin was a wonder drug.
At first,Bayer sold the drug through doctors,who then sold it to their patients. In 1915,the company started to sell aspirin in drugstores.In the United States,Bayer had a patent（专利权）on the drug. Other companies could make similar products and sell them in other countries,but only bayer could make and sell aspirin in the United States.In time,Bayer could no longer own the name aspirin in the United States. Other companies could make it there,too.However,Bayer aspirin was the most well known,and for many years,it was the market leader.
By the 1950s,new painkillers were on the market. Aspirin was no longer the only way to treat pain and reduce fever. Bayer and other companies looked for other drugs to make.However,in the l970s they got a surprise. Doctors noticed that patients who were taking aspirin had fewer heart attacks than other people. A British researcher named John Vane found the reason aspirin helped to prevent heart attacks.In 1982,he won the Nobel prize for his research. Doctors started to tell some of their patients to take aspirin every day to prevent heart attacks.It has made life better for the many people who take it. It has also made a lot of mon-ey for companies like Bayer that produce and sell it!
Why didn't the French scientist continue to make the medicine that stopped pain?
A.It didn't work well.
B.It was not cost-effective.
C.It hurt the stomach.
D.It was hard to make.
[单选题]当航线水深受限制时,船舶的航次载货重量能力与( )有关。①空船重量;②开航日期;③浅区密度;④油水储备;⑤富余水深
A. ②③④⑤
B. ①②③⑤
C. ①③④⑤
D. ①②③④
[多项选择]下列关于股份有限公司经理的表述，正确的有( )。
A. 经理是公司的法定代理人
B. 经理对董事会负责
C. 经公司董事会决定，经理可由董事会成员兼任
D. 经理可以成为公司监事会成员
[判断题]在其他条件一定的情况下,压力容器的工作压力越高,其直径越大。
A.正确
B.错误
[判断题]职工应严格遵守劳动纪律和作业纪律，班前充分休息，严禁班前、班中饮酒。( )
A.正确
B.错误
[单选题]卡片正面包含的信息组合正确的一项是( )。
A.地区号 卡号 签名条
B.姓名拼音 有效期 发卡行标识
C.国际组织标识 称谓 安全码
D.卡号 银联标识 签名条
[单选题] 1 公安机关办理的行政案件，由违法行为地的公安机关管辖。如果由（ ）公安机关管辖更为适宜的，可以由其管辖。
A.最初受理的
B.违法行为人户籍所在地
C.违法行为人居住地
D.上一级
[单项选择]当事人到期不缴纳行政处罚罚款的，每日按罚款数额的( )加处罚款。
A. 2%
B. 3%
C. 5%
D. 6%
[简答题]采用电话闭塞法组织行车时，行车间隔的规定？
[单选题]钢构件焊缝无损检测方法,适用于内部缺陷的检测,主要用于体 积型缺陷检测的是 ()。
A.
射线检测
B.
超声波检测
C.
磁粉检测
D.
渗透检测
[单选题]( )短路时会产生电弧,电弧温度很高,可达()度以上。
A.600
B.1500
C.3000
D.6000
