热门试题:
[单选题] "在RLC串联电路中.视在功率S,有功功率P,无功功率Q,三者之间的关系是( )。
A.S=Q+P
B.S=P-Q
C. S2=P2+Q2
D.S=PQ"
[单项选择]The massacre at Columbine High School serves as an example of ______.
[判断题]一种道德观念,从它产生的那天起,便成为改变社会风貌的强大力量。
A.正确
B.错误
[单选题]《铁路旅客运输办理细则》(铁运〔1997〕103号)规定,对( )应优先安排装运。
A.抢险救灾物资
B.急救药品
C.零星支农物资
D.以上都是
[单选题]两只电灯泡,当额定电压相同时,(____)。
A.额定功率小的电阻大
B.额定功率大的电阻大
C.电阻一样大
D.额定功率小的电阻小
[填空题] 重整进料中对杂质硫含量的要求是( )。
[单项选择]中放末级不加自动增益控制,是因为加AGC控制后,容易使中放末级产生()。
A. 非线性失真
B. 线性失真
C. 自激
D. 相位失真
[单选题]《国际旅客联运协定》规定,如护照和行政当局的规定许可,旅客有权在客票有效期内在途中下车不限次数和睁间,中途下车____有效期。
A.A:不延长客票的
B.B:需改签客票的
C.C:可延长客票的
D.D:需到站办理延长客票的
[判断题]测量记录,计算成果和图表应注记清楚,填写齐全,签署完善,并应复核和验算,未经复核和验算的资料严禁使用()。
A.正确
B.错误
[判断题]专门用于传输语音信号的电缆叫做通信电缆
A.正确
B.错误
[单选题]起吊前应检查起重设备及其安全装置;重物吊离地面约( )cm时应暂停起吊并进行全面检查,确认良好后方可正式起吊。
A.A.5
B.B.10
C.C.15
D.D.20
[判断题]国家设立反恐怖主义工作领导机构,统一领导和指挥全国反恐怖主义工作。()
A.正确
B.错误
[单选题]2.211. 第211题
感应耐压试验在选用试验变压器时,其容量应()或等于变频电源的容量,且阻抗应尽可能的(),以减小试验电流在试验变压器上引起的电压变化。
A.小于、小
B.大于、小
C.大于、大
D.小于、大
[单项选择]患儿,男孩,12岁,持续性血尿6个月,无浮肿、尿少,尿蛋白:微量,红细胞:满视野。肾脏B超:肾脏、膀胱、输尿管无异常。若血尿常在感冒后加重并出现肉眼血尿,查肾功能正常,尿异形红细胞占 50%,其母有血尿病史,肾功能正常。
进一步明确诊断应选择什么检查方法
A. 肾组织活检
B. 膀胱镜检查
C. 静脉肾盂造影
D. 肾脏CT扫描
E. 同位素肾图
[单选题] 患者,男性,78岁。高血压23年。因突发右侧肢体活动不便3小时入院。查体:神志清楚,呼吸21次/分,脉搏95次/分,血压175/105mmHg,右侧肢体可见肌肉收缩,但无肢体运动,肌力1级。医嘱要求进行CT检查,护士应首先( )
A.先等患者用完餐后再送检查
B.确认CT检查是否收费
C.向家属解释CT与MRI的区别
D.安排用平车运送患者
E.为保证检查顺利进行,应携带氧气枕
[判断题] 自2019年1月1日起,财政部原驻各地专员办征收的21个项目划转税务部门征收。( )
A.正确
B.错误
[单选题]为了防止跨步电压对人造成伤害,要求防雷接地装置距离建筑物出入口、人行道最小距离不应小于()米。
A.1
B.2
C.3
D.4
[单项选择]框架-剪力墙结构在水平荷载作用下侧移曲线为()。
A. 弯曲型
B. 剪切型
C. 弩剪型
D. 复合型
[判断题]复习形式多样化、划线和做笔记都是常用的复述策略。
[单选题]求知意识
A.求知意识
B.理论知识培训
C.创新意识
D.专业技能练习
[单选题]对思维和存在的同一性问题的不同回答,区分的是 ( )
A.唯物主义和唯心主义
B.可知论和不可知论
C.反映论和先验论
D.辩证法和形而上学
[单项选择]伏特是()的单位。
A. 电压
B. 电流
C. 电阻
D. 功率
[单项选择]蛋白质变性是由于()。
A. 肽键断裂,一级结构遭到破坏
B. 蛋白质中的一些氨基酸残基受到修饰
C. 蛋白质分子沉淀
D. 次级键断裂,天然构象解体
E. 多肽链的净电荷等于零
[判断题]两线、多线区间使用路票时,应在路票上加盖“××线行车”章。(技规)
A.正确
B.错误
[单选题]根据《工伤保险条例》的规定,工伤职工骗取工伤保险待遇,由( )责令
退还。
A.劳动保障行政部门
B.安全生产监督管理部门
C.社会保险行政部门
D.劳动保障行政部门会同国务院财政部门
[多选题]低压下户线杆上作业应选好作业位置,( ),应设专人监护。
A.作业人员要分清相线、中性线
B.先搭接中性线,后搭接相线
C.拆线作业先拆相线,后拆中性线
D.拆线作业先拆中性线,后拆相线
[多选题] 电话中心运营目标管理中,如何有效降低成本,增加利润( )。
A.建立内部核算的客户服务中心业绩机制
B.推行多样化的电话营销服务
C.扩大业务受理渠道
D.建立并推行合理化的客户服务中心的运营绩效指标
[多选题]可靠性提升方案中的“破坏性抽检”试验与DL/T 637-2019中的型式试验相比具有什么优势?
A.缩短了试验时间
B.试验设备为常用的运维检修设备
C.对生产批次内的全部蓄电池进行测试
D.与GB/T 19638.2-2014相一致
[单选题]T.CL型雷达有效测量距离( )(对空平板车)。
A.>30m
B.>50m
C.>80m
D.>100m
[多选题]计算机网络按拓扑结构分类有()。
A.星型
B.树型
C.总线型
D.环型
E.略
F.略
G.略
H.略
[单项选择]()根据运动部件的运动方式不同,可分为往复泵和回转泵两类。
A. 船舶动力装置用泵
B. 船舶通用泵
C. 特殊船舶专用泵
D. 容积式泵
[不定项选择题]共用题干
Waste Not,Want Not
1 Bob and Clara Darlington,who own and run a farm in the North of England,have always looked for
new ways of making money out of the produce they grow.Their success began when they established a shop
on their farm so that people could come and buy fresh vegetables directly from them.
2 The business was an immediate success,and soon scored top marks in a competition set up by the
Farm Retail Association to find the best farm shop in the country.The Association's inspectors found the
Darlingtons' shop offered excellent service and value for money as well as quality fruit and vegetables.
3 Clara Darlington is a trained chef and,in addition to a range of home-grown foods and other local
produce,she began offering a variety of prepared meals which she had made herself in the farmhouse kitchen.
A small cafe alongside the farm shop was soon added,with everything that visitors could taste on the menu
also being for sale in the shop.
4 Clara admits that starting the business was expensive,and she has worked very hard,but maintains
that if the product is good,the public will recognize this and buy it."I aim to offer the highest quality to our cus-
tomers,whether they come in for a loaf of bread,or take a whole dinner-party menu.I take it as a compliment
(恭维)if people take home one of my dishes to serve to their family and friends and get away with preten-
ding they made it themselves."
5 The couple realized that they had a surplus of misshapen or damaged vegetables grown on the farm
which were unsuitable for selling in the shop.Clara,not wishing to see them get thrown away,decided to turn
them into soup.
6 The soup met with the immediate approval of customers to the shop and Clara now produces ten
different varieties. She spent much of the summer traveling up and down to London by rail,doing presentations of
the soups.As a result,they are now served in first-class railway restaurant cars belonging to three companies
as well as being stocked by a number of high-class London stores.
Instead of throwing the damaged vegetables away,the couple__________.
A.sell fresh vegetables
B.turned them into soup
C.sell as much as possible
D.promote her soups
E.fill a gap in the market
F.offered a variety of prepared meals