热门试题:
[判断题]超过定期检修期限的客车车辆禁止编入旅客列车。
A.正确
B.错误
[单项选择] When the vote was finally taken, it was 3:45 in the morning. After six months of arguing and a final 16 hours of hot parliamentary debates, Australia’’s Northern Territory became the first legal authority in the world to allow doctors to take the fives of incurably ill patients who wish to die. The measure was passed by the convincing vote of 15 to 10.Almost at the same time word flashed on the Internet and was picked up, half a world away, by John Hofsess, executive director of the Right to Die Society of Canada. He sent it on through the group’’s on-line service, Death NET. Says Hofsess: "We posted bulletins all day long, because of course this isn’’t just something that happened in Australia. It’’s world history."
The full import may take a while to sink in. The NT Rights of the Terminally Ill law has left physicians and citizens alike trying to deal with its moral and practical implications. Some have breathed sighs of relief; others ,including churches, right-to-life grou
A. only a matter of time.
B. far from certain.
C. just an illusion.
D. a shattered hope.
[单项选择]以下叙述中错误的是【 】。
A. C语言中对二进制文件的访问速度比文本文件快
B. C语言中,随机文件以二进制代码形式存储数据
C. 语句FILE fp:定义了一个名为fp的文件指针
D. C语言中的文本文件以ASCII码形式存储数据
[判断题] 电压的大小用电压表来测量,测量时将其串联在电路中。
A.正确
B.错误
[判断题]国家质检总局第140号令《特种设备作业人员监督管理办法》自年7月1日起全国施行。
A.正确
B.错误
[单项选择]某旅游服务企业依据GB/T24421-2009建立了服务标准体系,将全部质量管理体系文件纳入了该体系,同时规定标准体系内文件按照GB/T1.1-2009标准要求编写,审核发现质量管理体系文件的编写并不符合该项规定,不符合ISO9001:2015标准哪个条款要求?()
A. 4.4.2
B. 7.5.2
C. 8.1e
D. 8.5.5
[单选题]出站及发车进路复示信号机显示一个绿色灯光,表示主体信号机在( )状态
A.灭灯
B.开放
C.关闭
D.断丝
[简答题]02-22 06:30:56.987 17609 17609 I
[单项选择]那种颜色的区域不是干粉灭火器的压力表所有的()。
A. 黄色
B. 红色
C. 绿色
D. 蓝色
[单选题]单选题锅炉型号为DZL4-1,25-AII其额定蒸发量为()
A.4t/h
B.1.25t/h
C.6t/h
[单选题]增设明洞时,其防排水应符合以下要求:靠山侧边墙或边墙后,应设置纵向或竖向盲沟,将水引至边墙泄水孔排出。纵向盲沟设置纵坡不小于( )。
A.5‰
B.3‰
C.2‰
D.4‰
[单选题]无砟轨道墩台基础工后均匀沉降量限值为()
A.5mm
B.15mm
C.20mm
D.30mm
[多选题]施工现场涉及新技术、新工艺、新流程、新装备、新材料的项目人员,应进行专门的安全生产教育和培训。进入现场的其他人员(供应商、实习人员等)应经过安全生产知识教育后,方可进入现场参加指定的工作,( )、( )并且不得单独工作。作业人员应按照国家有关规定,取得相应资格,并按期( ),定期( )。
A.特种作业人员
B.特种设备
C.复审
D.体检
[单选题]在计算机中,一个字节能容纳的最大二进制数换算成无符号十进制整数为( ).
A.128
B.255
C.127
D.256
[判断题]敷设质量达到以下要求:架空线悬挂点的间距,直线段内不超过8m,曲线段内符合规定;
A.正确
B.错误
[多选题]关于装置的干燥,下列说法正确的是( )。
A.干燥是除去系统中残留的水分
B.系统干燥前,工艺管道安装完备
C.系统干燥前,要求工艺管道吹扫合格,气密均已合格
D.一般是干燥完后再做气密
[单项选择]在物流系统的支撑要素中,()起着联结、调运、协调指挥其他各要素以保障物流系统目标有效实现的作用。
A. 体制、制度
B. 法律、规章
C. 组织及管理
D. 标准化系统
[判断题]总工作票上所列的安全措施可以不包括所有分工作票上所列的安全措施。
A.正确
B.错误
[单选题]变压器新投运行前,应做( )次冲击合闸试验。(1分)
A.5
B.4
C.3
D.2
[判断题]在进行营销现场作业时,现场勘察后,现场勘察记录应送交工作负责人及相关各方,作为填写、签发工作票等的依据。
A.正确
B.错误
[多项选择]合同公证与鉴证的区别体现在( )。
A. 合同公证与鉴证的申请原则不同
B. 合同公证与鉴证的内容和范围
C. 合同公证与鉴证的效力不同
D. 法律效力的适用范围不同
E. 合同公证与鉴证的性质不同
[多项选择]刘某购新车一辆后投了财产保险,保险价值10万元。某日,刘某开车时被司机王某违章驾驶的卡车撞坏,造成损失2万元。下列表述中正确的是()。
A. 刘某既可向王某索赔,也可选择要保险公司赔偿
B. 若保险公司向刘某支付了赔偿保险金,则刘某不得再向王某索赔
C. 王某向刘某支付了赔偿费,则刘某仍有权再向保险公司索赔
D. 若刘某放弃对王某的索赔权,则保险公司不承担赔偿保险金的责任
[多选题]为防止机械伤害,在无法通过设计实现本质安全的情况下,应使用安全装置.下列有关安全装置设计要求的说法中,正确的是__________。
A.安全装置有足够的强度、刚度、稳定性和耐久性
B.安全装置不影响机器的可靠性
C.将安全装置设置在操作者视线之外
D.安全装置不带来其他危险
[填空题]高压负荷开关可以接通或断开()电流,但不能开断线路的()电流。
[单选题]6.属于班组经济核算主要项目的是( ).
A..设备完好率
B..安全生产
C..能耗
D..环保中的三废处理
[单选题]非绝缘锚段关节的检测周期为( )。(职工)(应知应会-西铁供[2017]19号,第六十二条)
A.6个月
B.12个月
C.36个月
D.24个月
[多选题] 下列关于间隔棒,错误的有( )。
A.间隔棒应易于安装和拆卸,需要全部拆散
B.在间隔棒安装位置上必须保持自导线间距的要求值
C.间隔棒任何部件不能损坏或出现永久性变形
D.间隔棒应为柔性结构,且具有阻尼性能
[单选题]企业从事下列项目取得的所得中,减半征收企业所得税的是( )。
A.饲养牲畜
B.远洋捕捞
C.海水养殖
D.种植中药材
[判断题]贷款资金账户监督管理是指要求借款人按借款合同约定在农商银行开立或指定专门贷款发放、资金回笼账户,实行贷款资金专户管理,农商银行对专用账户采取必要的监督管理手段。( )
A.正确
B.错误
[判断题]所有进入高铁区段作业的从业人员必须进行专门的应知应会培训和考试 ,使作业人员熟知高铁区段作业劳动安全标准和防范措施,未经专门的劳动安全培训和考试合格的人员,不得进入高铁区段作业。
A.正确
B.错误
[单项选择]颗粒状物料的干燥宜选用()
A. 烘干干燥
B. 减压干燥
C. 沸腾干燥
D. 喷雾干燥
E. 冷冻干燥
[不定项选择题]共用题干
第三篇
Compact Disks
If someone says to you your music CDs don't really hold any music on them,and they only have numbers recorded on them,you may not believe it.In fact,he is right in that sound is actually recorded onto the CDs as special numbers-a digital code.The code is pressed onto the CD as bumps(隆起)on a long spiral track almost five kilometers long.These bumps are an average of 0.5 microns(微米)wide.
A small laser beam shines onto the bumps as the CD turns.The light is reflected back to a receiver that records how the laser light bounces back.This lets the CD player turn the reflected light back into the original code.This means you can hear the original code as music.
Digital codes are used with many technologies.E-mail needs these kinds of code numbers.Space probes (探测仪)communicate with their ground station on earth using digital codes.Bar codes are read as digital codes in computer systems.Digital communications with cell phones need digital codes.Weather radios also tune in to specific signals using these codes.
There are many types of compact disks.One format is called CD-RWs.They can be recorded on and re-recorded on(rewritten on)as you would do with a floppy disk(软盘).Another format is the CD-ROM.The technology for recording on these disks is different from other CDs.These CDs have a dye layer that the CD writer can darken or leave clear.The clear and dark spots are the digital code.CD-ROM stands for Compact Disc-Read Only Memory.This disk is like a"super" floppy disk that can hold lots of information.One CD-ROM can hold the same amount of data as 500 floppy disks.Information is permanently recorded onto it.Computer games and other programs are considered to be CD-ROMs.
CDs were first sold to the public in 1982.These CDs still play well and sound fine.Current CDs are expected to last between 70 to 200 years.Of course,you can make sure your CDs last a long time by taking care of them.
Science keeps on developing.It may not be many more years before a completely new technology is invented and introduced to the public for music recording.In the meantime,there is no doubt you will continue to enjoy listening to your favorite music on CDs and play your favorite computer games on CD-ROMs.
It can be inferred from the passage that______.
A.CD-ROMs are more expensive than other CDs
B.new technology for music recording is being developed
C.the author likes listening to music
D.floppy disks are no longer in use
[判断题]一般来说,爆炸极限范围越宽,则爆炸危险性越大。
A.正确
B.错误
[单选题]当超长列车尾部停在警冲标外方,接人相对方向的列车时,在进站信号机外制动距离内进站方向为超过()的下坡道,而接车线末端无隔开设备,须使列车在站外停车后,再接入站内。
A.6‰
B.4‰
C.5‰
D.8‰
[简答题]必须横越列车、车列(组)时,严禁钻车。应先确认列车、车列(组)暂不移动,然后由车辆通过台或<--NRC-->越过,越过时勿碰开钩销,上下车时要抓紧蹬稳并注意邻线有无机车车辆运行;经车辆通过台越过应从车梯上下车。
[单选题]在碎屑成分的描述中,同一粒径颗粒含量达到()称为“次之”?
A.超过>50%
B.25~50%
C.25~5%
D.5~1%
[单项选择]患者,女性,27岁。体检发现卵巢囊性肿物,直径3cm,月经正常,无其他主诉。恰当的处理是
A. 每3个月复查1次
B. 择期患侧卵巢切除术
C. 预防性化疗
D. 腹腔镜探查
E. 雄激素治疗
[多项选择]在镀膜过程中,石英晶振可以显示以下哪些数值?()
A. 蒸发速率
B. 蒸发温度
C. 真空度
D. 膜层厚度
[判断题]在寒冷季节,水罐消防车的水泵、出水球阀、附加冷却器、管路中的余水应放尽,以免冻裂。( )
A.正确
B.错误