热门试题:
[判断题]机具在运行中不得进行检修或调整。( )
A.正确
B.错误
[单选题] 不同的职业危害对人体的危害不同,如()可导致尘肺病
A. 粉尘
B. 毒物
C. 噪声
D. 高温
[单选题]发电机地脚位置调整时,调整垫片每组一般不得超过()。(1.0分)
A.三块
B.四块
C.五块
D.不限制
[多选题]小天处理在校大学生教育救助申请,根据《社会救助暂行办法》可建议学校采取的方法有( )
A.减免相关费用
B.发放助学金
C.给生活补助
D.勤工俭学
E.开发专门的补习班
[多选题]托运易碎品、流质物品或一级运输包装的放射性同位素时,应在包装表面明显处贴上()等相应的安全标志。
A.“小心轻放”
B.“向上”
C.“一级放射性物品”
D.“防潮”
[单选题]236.单相半波整流输出的电压平均值为整流变压器二次侧电压有效值的()倍
A.0.45
B.O.707
C.0.9
D.1
[单选题]2.206. 第206题
《20kV及以下变电所设计规范》规定:户内变电所每台油量大于或等于( ) 的油浸三相变压器,应设在单
独的变压器室内,并应有储油或挡油、排油等防火设施。
A.25Okg
B.2OOkg
C.l5Okg
D.lOOkg
[单选题]《普规》规定:车站接到列车退行的报告后,除立即报告列车调度员外,根据线路占用情况,可()将列车接入站内。
A.开放进站信号机
B.按引导办法
C.开放进站信号机或按引导办法
D.按正常办法
[单项选择]Jonas Frisen had his eureka moment in 1997. Back then, scientists suspected that there was a special type of cell in the brain that had the power to give rise to new brain cells. If they could harness these so-called neural stem cells to regenerate damaged brain tissue, they might someday find a cure for such brain diseases as Alzheimer’s and Parkinson’s. But first they had to figure out where neural stem cells were and what they looked like. Frisen, then a freshly minted Ph. D. at the Karolinska Institute in Stockholm, was peering through his microscope at some tissue taken from a rat’s injured spinal cord when he saw cells that appeared to have been enervated by the injury, as though they were busy making repairs. Frisen thought these might be the neural stem cells scientists had been looking for. It took him six years of painstaking research to make sure.
Frisen is quick to emphasize that his research is basic and that treatments are years off. But the findings so far hint at e
[判断题]异步电动机工作时,负载转矩一旦超过电动机的最大转矩,电动机将立即停转。
A.正确
B.错误
[单项选择]《中国民用航空通信导航监视系统运行、维护规程》第十六条规定,高频对空通信设备从主用机交换(人工或自动)到备用机工作的换机时间不能超过()。
A. 20秒
B. 1分
C. 10秒
D. 60秒
[判断题]运输气体类危险货物重、空罐车时,每列编挂不得超过3组
A.正确
B.错误
[判断题]变压器是根据电磁感应原理工作的。( )
A.正确
B.错误
[判断题]从业人员在作业过程中,应当服从管理,正确佩戴和使用劳动防护用品。( )
A.正确
B.错误
[多选题]以下所列,检验检疫机构实行备案管理的有( )。
A.出口肉类产品生产企业
B.储存出境动物产品的冷库
C.出口食品生产企业
D.出口饲料生产企业
[多项选择]控制成本的方法包括( )法。
A. 网络计划
B. 香蕉曲线
C. S曲线
D. 直方图
E. 控制图
[单选题]某药与受体结合后,产生某种作用并引起一系列效应,可将此药称为:( )。
A.部分激动剂
B.激动剂
C.非竞争性拮抗剂
D.竞争性拮抗剂
[单项选择]以下哪一项不属于韩国五大企业之一:()
A. LG
B. 依恋
C. SK
D. 现代
[多项选择]场景(十四) 甲建设单位与乙施工单位签订了一项施工合同,合同中载明乙施工单位建造一住宅楼工期10个月。甲建设单位为节约成本指定乙施工单位购买丙公司不合格砂料一批。甲建设单位为了自身利益要求乙单位缩短工期,提前1个月完工,乙单位为了安全施工,工程达标,拒绝甲建设单位要求。
根据场景(十四),回答下列问题:
下列行为中,违反了《建设工程安全生产管理条例》规定的有( )。
A. 施工图设计文件未经审查批准就使用
B. 提供建设工程有关安全施工措施的资料
C. 承包商没有与劳动者签订用工合同
D. 建设单位要求压缩合同约定的工期
E. 建设单位没有提供足够的保障安全生产的费用
[单项选择]设M=2000,为了在屏幕上输出 □□***2000***(其中口表示空格):则应使用的格式输出语句为( )。
[单项选择] 船员应急职责应遵循原则是()。 (1)有利应急任务的完成 (2)关键动作派得力人员
A. 1
B. 2
C. 1、2
[单选题]cslc城市消防作战指挥中心是市级消防部队作战指挥中枢,担负着接警调度和上传下达的职能,可自动或人工实现()、出动方案编制.出动命令下达等火警受理流程。
A.火警电话应答
B.火警电话录音
C.火警辨识
D.接处警信息打印
[单项选择]Although Coca-Cola Co: spent nearly $ 2 billion last year advertising its various brands around the globe, it saw its share of the critical U. S. cola market decline. Meanwhile, Pepsi Co. is riding a sizzling (火热的) Britney Spears-led ad. campaign to a bigger share, sod has launched an audacious (大胆的)assault on Coke’s long-held sponsorships. The cola. fight is heating up. And Pepsi is landing most of the punches.
Pepsi’s share of the U.S. carbonated soft-drink market rose to 31.65% last year, average Digest report. Coke brands, including Diet Coke and Sprite, still lead easily with a 43.7 % share--but that’s down four-tenths of a point. Both companies’ flagship colas, which together account for 1 of 3 sodas sold in the U.S., lost share last year. But Coke’s lost more, and Pepsi scored big with new flavors Code Red and Lemon Twist.
Pepsi. Co. recently embarrassed its bigger rival by snatching away the National Football League sponsorship, which had been Coke’s for 22 years.
A. would like to spend billions of money on the promotion of its products
B. has twice as many advertising experts to turn to for consultation
C. is always changing its image to cater to the taste of the young people
D. can make effective use of famous stars popular with the young people
[单选题]有限空间作业所使用的气体检测仪,仅可以检测有限空间内氧含量数值。
A.正确
B.错误
C.略
D.略
E.略
F.略
[单选题]我行个人重大事项报告管理办法规定,个人重大事项报告是指干部员工应当按分级管理权限向所在单位或相应管理部门报送( )上一年度涉及的有关资产、出国(境)、婚姻变化等重大事项。
A.本人或配偶
B.本人或家庭
C.本人或子女
D.仅本人
[单选题]诊断肾病综合征时,不含哪项表现
A.高脂血症
B.高血压
C.大量蛋白尿
D.低血浆白蛋白
E.水肿
[简答题]设A是3阶实对称矩阵,其主对角线元素都是0,并且α=(1,2,-1)T满足Aα=2α.(Ⅰ)求矩阵A;(Ⅱ)求正交矩阵P,使P-1AP为对角矩阵.
[单选题]抵债资产的接收日是指抵债资产协议书生效日或法院、( )抵债文书的生效日。
A.仲裁机构裁决(定)
B.合同生效日
C.抵债资金入账日
D.账务处理日
[单选题]1961年1月,中共八届九中全会决定对国民经济实行“调整、巩固、充实、提高”的八字方针,毛泽东在会上号召全党( )
A.大兴下乡锻炼之风
B.大兴走访基层之风
C.大兴调查研究之风
D.大兴上山下乡之风
[多项选择]对于企业投资建设的下列产品项目,如()等项目,不论是实行核准制的项目还是备案制的项目,在关心财务评价结论的同时,也需要关注建设项目的经济效果。
A. 水电资源开发
B. 交通运输
C. 教育
D. 医疗服务
E. 工厂
[判断题]采用CO2气体作为置换介质时,由于CO2不燃烧,所以置换后不需要再对容器进行清洗。
A.正确
B.错误
[单选题]尸体裸露部分的皮肤,均匀烧脱,形成“人皮手套”或“人皮面罩”说明接触( )而起火。
A.易燃气体
B.易燃液体
C.易燃固体
D.化学爆炸物品
[单项选择]均数是表示变量值的()
A. 平均水平
B. 变化范围
C. 频数分布
D. 相互间差别大小
E. 离散趋势
[判断题]信息技术的应用就是信息化。 ( )
A.正确
B.错误
[多项选择]Identify four uses of the Oracle Scheduler.()
A. enables Oracle database to schedule which processes execute on which processors in a multiple CPU environment
B. enables Oracle database to do patches according to a DBA-defined schedule
C. enables you to schedule the execution of jobs based on time
D. enables you to execute jobs in a clustered environment
E. enables you to periodically execute operating systemscript files located on the same server as the database
F. enables you to create a job that makes use of saved programs and schedules
G. enables you to automate the management of the jobs that are created using the DBMS_JOB package