热门试题:
[单项选择]关于误差复映的描述,()是不正确的。
A. 加工前的误差以类似的形状反映到加工后的工件上去
B. 若一批工件的毛坯尺寸不一,加工后的工件仍有尺寸不一的误差
C. 误差复映系数ε(ε<1)定量地反映了毛坯误差经加工后所减少的程度
D. 工艺系统的刚度越大,误差复映的现象就越明显
[单项选择]某施工企业对己完工程及设备的保护费用属于()。
A. 安全文明施工费
B. 财产保险费
C. 措施项目费
D. 其他项目费
[单选题]在验配和设计角膜塑形镜时,用于回退的屈光度为 ( )
A.-0.5~-0.75近视
B.+0.5~+0.75远视
C.+1.0~+1.50远视
D.+1.5~+2.0远视
[判断题]已终结的工作票(含工作任务单)、故障紧急抢修单、现场勘察记录至少应保存2年。
A.正确
B.错误
[判断题]喂线技术是在80年代后期在喷射冶金技术的基础上发展起来的一项新技术。( )
A.正确
B.错误
[填空题]一般来说,发电机的故障和不正常工作情况有以下()、()、()、()、()、()、()、()八种。
[单项选择]缩写字母LT表示()
A. 液位玻璃管
B. 液位变送器
C. 液位显示
D. 液位显示控制器
[判断题]劳动者在生产劳动过程中,既享有劳动安全卫生保护的权利,又不必履行劳动安全卫生保护的义务。
A.正确
B.错误
[多选题]《山东农村商业银行“信e贷”客户信息采集标准》规定,客户特色信息包括:种植信息、( )。
A.A养殖信息
B.经营信息
C.工作信息
D.其他信息
[单选题].消防员呼救器后场接收装置可分为( )
A.计算机型
B.非计算机型
C.台式型
D.计算机型和非计算机型
[判断题]应加强机房管理,杜绝因人为因素可能导致的网络故障。 ( )
A.正确
B.错误
[单项选择]《围城》是钱钟书先生在哪座城市历经两年创作出来的作品?()
A. 伦敦
B. 上海
C. 长沙
D. 重庆
[单项选择]某环评机构在为某垃圾焚烧厂项目做环境影响评价的过程中,发现《环境影响评价法》与《大气污染防治法》对某一问题的要求不同,应遵照( )的规定执行。
A. 《环境影响评价法》
B. 《大气污染防治法》
C. 均不遵守
D. 择一要求低的执行
[单项选择]某药的消除符合一级动力学,其t1/2为4小时,在定时、定量给药后,需经多少小时才能达到稳态血药浓度()
A. 约30小时
B. 约20小时
C. 约10小时
D. 约40小时
E. 约50小时
[单选题]Text 3 England's problematic vocational education system has been subjected to wave after wave of reform.Yet improving the quality of technical education has eluded governments of all colours.University technical colleges(UTCs)are only the latest example of a shiny innovation that ran on to the rocks.Seven UTCs have now announced they are closing their doors.UTCs were intendecl to provide quality vocational education,combining technical and academic learning,for young people from the age of 14.Despite the millions the government has invested in them,ihey have on the whole been plagued by poor GCSE results and an inability to attract sufficient numbers of young people.Several attempts to establish quality vocational eclucation from 14 have failed.The issues affecting UTCs provide an opportunity to revisit whether this merits continuing support.We should take it.Barely a year passes without a lament about the low status of vocational qualifications.These often fail to recognise the chicken and egg that holds vocational learning back.Its status will only improve when ii is not seen as the preserve of those who have been failed by the school system.But while its status is low,these are the only young people likely to try something unproven and untested.This dynamic means new institutions often replicate the problems of the old seconclary moderns.Young people who attend UTCs are more likely to be from poor backgrounds,have made poor progress in primary school,and have attended secondary schools rated poorly by Ofsted.They are children who have been failed by the school system.In this day and age,there is no such thing as a career that does not require functional literacy and numeracy.Yet drawing low-achieving children out of mixed-ability schooling at age 14 makes them less likely to get the decent GCSEs in maths and English that are so critical in the eyes of employers.Setting up alternative vocational institutions for 14-year-olds thus risks closing down future vocational options,rather than expanding them.Vocational education is often posited as an alternative for those who are not"academically minded",orten a code for those who have disengaged from school.Yet this is far more likely to be a symptom of poor teaching ancl a lack of adequate support rather than a young person's inability to engage with a broad pre-16 curriculum that includes both academic and applied learning.Selection by academic ability at age 11 is wrong.But so i.s backdoor selection by academic ability at 14.The rlght to experience an engaging curriculum and finish school with adequate levels of literacy and numeracy is best achieved by options at 16 not 14.This wili not solve everything;but it is a better basis for ensuring 16-year-olds have the skills they need to flourish in any job.
In the author's view,establishing alternative vocational institutions for 14-year-olds would_____
A.equip them with more vocational skills
B.encourage their engagement in school
C.restrict their future vocational choices
D.discourage their academic learning
[单选题]保护屏柜上交流电压回路的空气开关应与电压回路总路开关在跳闸时限上有明确的( )关系。
A.前后
B.依靠
C.动作
D.配合
[多选题] 通过小翼管家APP与智能门铃设备绑定后,即可享受智能门铃的( )服务;(标准分:2.0)
A.红外人体感应
B.智能人形识别
C.访客可视通话
D.电子门铃
E.防拆报警
F.手机APP远程控制
[判断题]手持终端用户当天结束所有的业务操作后,需做正式登出操作,退出系统。用户正式登出成功后,不联动打印用户日结单,不联动打印部门日结单。持有现金或凭证的用户必须在柜面 GUIP 系统中完成现金、凭证的轧账处理。对于有客户经理标识的用户不适用登出检查控制。( )
A.正确
B.错误
[单项选择]很长一段时间人们都认为地球是方的,当有人提出地球是圆的时,遭到了大家的嘲讽。16世纪麦哲伦环球航行成功,证明了“地球圆形说”的正确性。后来,牛顿提出地球是椭圆的,也遭到批判。直到18世纪科学家们对地球进行了测量,才证实地球的确是椭圆形的。对地球形状的认识过程说明()。
A. 认识是实践的来源,实践是认识的结果
B. 人们永远无法做到正确地认识客观世界
C. 人类的认识具有反复性、无限性和上升性
D. 了解事物的过程总是先有认识,后有实践
[判断题]检查分为巡视检查、全面检查、单项设备检查和非常规检查。( )
A.正确
B.错误
[判断题]BY03CG073122两条平行导线中流过相反的电流时,导线互相吸引。
A.正确
B.错误
[多选题](多选题).平面图(包括家具),常用比例错误的是( )
A.1:50, 1:100
B.1:100, 1:1000
C.1:50, 1:1000
D.1:100, 1:500
[多项选择]
患者女,67岁,左侧人工膝关节置换术后2周,左膝疼痛1周。查体:T36.7°,P70次/min,R18次/min,Bp120/80mmHg,左膝局部肿胀,皮肤颜色正常,皮温较对侧稍高,髌骨下极外侧局部压痛,浮髌试验阴性。左膝活动度0°~100°。
为明确诊断还需进行的实验室检查是()
A. 血常规
B. ESR
C. CRP
D. 关节穿刺培养
E. 膝关节X线片
[单项选择]消化道出血最主要的原因是()。
A. 门脉高压
B. 食物损伤
C. 应激性溃疡
D. 血液系统病变
E. 消化性溃疡
[判断题]灭火时采取防中毒、倒塌、坠落伤人等措施。
[多选题]故障自诊断系统的功用是( )。
A.故障警告
B.故障码储存
C.安全保障
D.故障运行
[简答题]简述急性尖周炎形成粘膜下脓肿时的主要临床表现
[单选题]城市轨道交通列车空转时,空转的轮对转速要( )其他轮对。
A.大于
B.等于
C.小于
D.小于或等于
[判断题]非招标方式包括询价采购、单一来源采购、竞争性谈判、竞价采购和直接采购。
A.正确
B.错误
[单项选择]乳癌最早的临床表现是()。
A. 腋窝淋巴结肿大
B. 乳房肿块
C. 乳头溢液
D. 酒窝征
E. 卫星结节
[单项选择]在摆动初期,踝关节
A. 0°~20°跖屈
B. 5°~20°背屈
C. 0°~10°跖屈
D. 10°~20°跖屈
E. 0°~20°背屈
[单选题]不符合分子式:C4H8的物质是( )。
A.丁烷
B.丁烯
C.环丁烷
D.2-甲基丙烯
[单项选择]在下列有关个体行为的理论中,属于“激励内容”理论的是()。
A. 期望理论
B. 波特—劳勒模型理论
C. 双因素理论
D. X理论—Y理论
[判断题]客户侧作业高压验电前,验电器应先在有电设备上试验,确证验电器良好。
A.正确
B.错误
[单项选择]车床车削螺纹试验,产生螺距误差的原因是机床存在()误差。
A. 主轴
B. 导轨
C. 导轨位置精度
D. 传动链
[单选题]三叉神经痛位于第Ⅱ、Ⅲ支可能会
A.“扳机点”位于眉
B.“扳机点”位于鼻唇沟
C.“扳机点”位于颏孔
D.“扳机点”位于上唇及下唇
E.无“扳机点”
[单选题]呕血患者的饮食应该是( )
A. 软食
B. 冷流质
C. 普食
D. 暂禁食
E. 半量流质
[单选题]传动管启动水喷雾灭火系统比较适用于下列场所()。
A.冰冻场所
B.高危场所
C.安装有普通火灾探测器的场所
D.不适合安装普通火灾探测器的场所