热门试题:
[单项选择]在交通礼仪中,当多车道并单车道时应该()
A. 快速行驶
B. 拉链式行驶
C. 变道行驶
D. 慢速行驶
[多选题]高压断路器按灭弧介质分为( )断路器。
A.油
B.压缩空气型
C.真空型
D.SF6 型
[单项选择]根据社区卫生服务中心设置指导标准,业务用房使用面积不应少于多少m()
A. 200
B. 300
C. 400
D. 500
E. 600
[判断题] ( )邮储柜员领用尾箱后方可对外正常营业,普通柜员必须交叉领用尾箱。
A.正确
B.错误
[判断题]D吊篮行驶在途中,遇停工等原因不能运行,应及时通知有关人员关掉电源后,用手动摇把将吊篮下降到地面或升到屋顶,人员才可离开。不得在半途中用其它方式离开吊篮。( )
A.正确
B.错误
[单项选择]下列各项收入中,可以免征营业税的是( )。
A. 电影发行单位取得的片租收入
B. 个人出租自有住房取得的租金收入
C. 企业接受他人委托从事技术开发业务取得的收入
D. 高等学校利用学生公寓为社会服务取得的收入
[单项选择]以下关于我国社会福利企业表述正确的是( )
A. 享受减免税待遇
B. 国家财政拨款
C. 安置残疾人达到生产人员总数的50%
D. 国家下达生产指标
[多项选择]关于我国法律适用的原则,下列哪些说法是正确的( )
A. 司法独立原则表明司法权具有专属性
B. 司法机关独立行使职权,并不意味着可以无限度地使用自由裁量权
C. 任何人的违法犯罪行为,都必须同样地追究责任
D. 人大和党委不应该干预法院的审判工作
[单项选择]木瓜的主要化学成分是( )
A. 挥发油,油中主要成分为桉油精、伞花烃、右旋龙脑等
B. 皂苷、黄酮、有机酸
C. 多种环烯醚萜苷
D. 挥发油、香豆素、黄酮类
E. 木脂素、挥发油、有机酸
[判断题]危货箱的堆码存放应符合《配方表》的有关规定。
A.正确
B.错误
[单项选择]()针对直接关系型群体。
A. 缘故法
B. 介绍法
C. 陌生拜访法
D. 电话约访法
[多项选择]确定项目建设工期需参考的有关因素有( )。
A. 项目建设内容
B. 工程量大小
C. 专门机构制定的建设项目工期定额
D. 施工条件
E. 资金量的大小
[判断题]有限空间作业前,作业单位现场负责人只要对作业人员进行安全教育和进场安全教育就行了。
A.正确
B.错误
[单选题]下列故障属于用户线故障的是()
A.用户线短路
B.用户线断线
C.用户线接地
D.其余选项皆是
[单选题]密封保藏法是利用原料和( )隔离的原理。
A.日光
B.酶
C.细菌
D.水分
[判断题]个人金融服务体系分为三个层次:大众银行大众理财、富裕银行贵宾理财和私人银行财富管理。()
[判断题]生产费用按其与生产工艺的关系划分,可分为直接生产费用和间接生产费用。
[单选题]在扑救高层建筑火灾中,疏散和救助遇险和遇难人员的基本顺序是( )。(易)
A. 先着火层、再着火上层、后着火下层
B. 先着火上层、再着火层、后着火下层
C.先着火下层、再着火上层、后着火层
D. 先着火层、再着火下层、后着火上层
[多选题]汽提过程是( )。
A.传质方向与吸收相反
B.溶质由液相向气相传递
C.增大气相中的溶质分压
D.减小溶液的平衡分压
[单选题]物质不发生相变时吸收或放出的热量是( )。A.汽化潜热 B.熔解热 C.凝结热 D.显热
A.A
B.B
C.C
D.D
[多选题]集团职工福利费核算应符合( )。
A.据实列支
B. 不得预提
C.规范核算
D.可以预提
[多选题]填用带电作业工作票的工作为:(____)
A. 带电作业工作
B. 与邻近带电设备距离小于安规表3规定的工作
C. 与邻近带电设备距离大于安规表5规定的工作
D. 与邻近带电设备距离小于安规表3且大于安规表5规定的工作
[判断题]直流电压表的“+”端接电路的高电位点,“-”端接电路的低电位点。
A.正确
B.错误
[单选题] 通讯设备经常使用U作为高度的单位,其中1U等于多少CM
A.3.445cm
B.5.445cm
C.4.445cm
D.2.445cm
[填空题]脉冲炉使用的电压电流是()电压,()电流。
[单选题]《铁路交通事故调查处理规则》第9条规定:货运列车脱轨6辆以上60辆以下,并中断繁忙干线铁路行车24小时以上或者中断其他线路铁路行车48小时以上的,为( )事故。
A.特别重大
B.重大
C.较大
D.一般
[单选题]围栏与变压器外廓的距离:10kV及以下应不小于( )m,35kV应不小于( )m,( )在围栏各侧的明显部位悬挂“止步、高压危险!”的安全标志。
A.A-1、1.2
B.B-1、1.5
C.C-2、1.2
D.D-2、1.5
[单选题]对于移情的理解,错误的是( )。
A. 移情分为正移情和负移情
B. 移情的表达有直接和间接两种
C. 移情是寻求现实的帮助
D. 移情是心理咨询过程中的正常现象
[不定项选择题]共用题干
“Liquefaction” Key to Much of Japanese Earthquake Damage
The massive subduction zone earthquake in Japan caused a significant level of soil“liquefaction” that has surprised researchers with its1severity,a new analysis shows.
“We've seen localized examples of soil liquefaction as extreme as this before,but the distance and2of damage in Japan were unusually severe,”said Scott Ashford,a professor of geotechnical engineering at Oregon State University.“Entire structures were tilted and sinking into the sediments,”Ashford said.“The shifts in soil destroyed water,drain and gas pipelines,crippling the utilities and infrastructure these communities need to3. We saw some places that sank as much as four feet.”
Some degree of soil liquefaction is common in almost any major earthquake. It's a phenomenon in which soils soaked with water,particularly recent sediments or sand,can lose much of their4and flow during an earthquake. This can allow structures to shift or sink or5.
But most earthquakes are much6than the recent event in Japan,Ashford said. The length of the Japanese earthquake,as much as five minutes,may force researchers to recon-sider the extent of liquefaction damage possibly occurring in situations such as this.
“With such a long-lasting earthquake,we saw7structures that might have been okay after 30 seconds just continued to sink and tilt as the shaking continued for several more minutes,”he said.“And it was clear that younger sediments,and especially areas built on8filled ground,are much more vulnerable.”
The data provided by analyzing the Japanese earthquake,researchers said,should make it possible to improve the understanding of this soil9and better prepare for it in the future.Ashford said it was critical for the team to collect the information quickly,10damage was removed in the recovery efforts.
“There's no doubt that we'll learn things from what happened in Japan that will help us to reduce risks in other similar11,”Ashford said.“Future construction in some places may make more use of techniques known to reduce liquefaction,such as better compaction to make soils dense,or use of reinforcing stone columns.”
Ashford pointed out that northern California have younger soils vulnerable to liquefac-tion一on the coast,near river deposits or in areas with filled ground. The“young”sedi-ments,in geologic terms,may be those12within the past 10,000 years or more. In Ore-gon,for instance,that describes much of downtown Portland,the Portland International Airport and other cities.
Anything13a river and old flood plains is a suspect,and the Oregon Department of Transportation has already concluded that 1,100 bridges in the state are at risk from an earthquake.
Fewer than 15 percent of them have been reinforced to14collapse. Japan has suffered tremendous losses in the March 11 earthquake,but Japanese construction15 helped prevent many buildings from collapse一even as they tilted and sank into the ground.
8._________
A.occasionally
B.frequently
C.specially
D.recently
[判断题]柴油车发生飞车,可采取及时挂入高速档,踩下制动踏板,缓抬离合器踏板,强制柴油机因转矩不足而熄火的紧急停机措施。( )
A.正确
B.错误
[填空题]由正线与侧线组成的交叉线岔,正线接触线位于侧线接触线的 ;由侧线和侧线组成的线岔,距中心锚结 的接触线位于下方。
[单选题]某卸油区设置了静电释放器,作业人员进入卸油区前需要解除静电释放器,释放身体上可能带有的静电,根据能量意外释放理论,该事故防范对策属于()
A.限制能量
B.防止能量蓄积
C.控制能量释放
D.延缓能量释放
[单项选择]()垫片一般用于压力和温度波动较大的换热器、反应器、管道阀门和泵进出口法兰较为合适。
A. 金属
B. 缠绕式
C. 石棉
D. 胶皮
[判断题] 备用电源自动投入装置应保证工作电源断开后,工作线路才能投入。( )
A.正确
B.错误