热门试题:
[判断题]（ ）搬运及装卸重物时，应尽量使用机械作业；人力操作时，应统一指挥，动作一致；夜间应有充足的照明。
A.正确
B.错误
[单选题] 中压容器(毒性程度为极度和高度危险介质)属于()类压力容器。
A.二
B. 三
C. 一
[单项选择]标据的出标日期必须使用中文大写，例如出票日期为10月20日，应写成（ ）。
A. 零壹拾月零贰拾日
B. 壹拾月贰洽日
C. 拾月贰拾日
D. 零定拾月贰拾月
[多选题](多选)下列关于计算机网络的叙述,错误的是
A. 计算机组网的目的主要是为了提高单机运行效率
B. 网络中所有计算机的操作系统必须相同
C. 构成网络的多台计算机其硬件配置必须相同
D. 地理位置分散且功能独立的智能设备(如手机)也可以接入计算机网
[判断题]人民代聂大会制度是党在国家政权中充分发挥民主、贯彻 群众路线的最好实现形式,是中国社会主义政治文明的重要制度 载体。
A.正确
B.错误
[判断题]更换风笛膜片时,应卸下风管后盖,换上新膜片,然后鸣笛试验。( )
A.正确
B.错误
[多项选择]如果账簿按照账页格式分类，______适合现金日记账使用。
A. 三栏式
B. 多栏式
C. 订本账
D. 特种日记账
[多选题]带电插拔肘型电缆终端接头时应（ ）。
A.使用绝缘操作棒
B.戴绝缘手套
C.戴护目镜
D.穿绝缘靴
[判断题]司机室座椅可以前后左右上下调节。( )
A.正确
B.错误
[单选题]使用“请、您好、谢谢、（ ）、再见”等服务用语。
A.抱歉
B.对不起
C.请原谅
D.欢迎光临
[判断题]依法行政工作实行行政首长负责制，行政首长是本*行政区域或者行政部门依法行政工作的第一责任人。
[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.
7._________
A.when
B.what
C.how
D.which
[单选题]抑制气道炎症目前最常用的药物是（）
A.糖皮质激素
B.沙丁胺醇
C.氨茶碱
D.抗生素
E.酮替酚
[多选题]李心天教授提出的区分正常心理与异常心理的判别标准包括( )
A..医学标准
B..内省经验标准
C..操作标准
D..社会适应标准
[单选题]油压减振器是将电力机车振动冲击能量转变成 ( ) 。
A.机械能
B.化学能
C.热能
D.流体能
[单选题]合同承办部门应在( )个工作日内将签署的正式合同文本及其附件、对方出具的承诺函、特别声明等材料的复印件移交给合同执行部门,完善移交手续,并作好技术、业务交接工作,以便合同执行部门依约、适当地履行合同。
A.10
B.20
C.30
D.50
[单选题]与二氧化碳焊相比，以下关于混合气体保护焊的说法错误 的是（）。
A.A.与二氧化碳焊 相比，混合气体保 护焊焊缝金属中 得氧含量较低
B.B.与二氧化碳焊 相比，混合气体保 护焊焊缝金属中 得氧含量较高
C.C.与二氧化碳焊相 比，混合气体保护焊 的合金元素烧损程 度较轻
[单选题] 抽油机井井口憋压时井口压力一定要根据井口( )和泵径大小而定。
A.憋压时间
B.井口压力表
C.停抽时间
D.设备耐压情况
[单项选择]大型箱体类工件同轴孔同轴度误差的检验，检验精度要求高时，可用（）。
A. 内径千分尺
B. 杠杆百分表
C. 专用检验棒
D. 通用检验棒加检验套
[单项选择]炎症灶内红细胞是（ ）
A. 主动渗出
B. 主动漏出
C. 被动渗出
D. 被动漏出
E. 有时是主动渗出，有时是被动漏出
[单项选择]Let us assume, for the moment, that labor m not prepared to work for a lower money-wage and that a reduction in the existing level of money-wages would lead, through strikes or otherwise, to a withdrawal from the labor market of labor which is now employed. Does it follow from this that the existing level of real wages accurately measures the marginal disutility of labor Not necessarily. For, although a reduction in the existing money-wage would lead to a withdrawal of labor, it does not follow that a fall in the value of the existing money-wage in terms of wage-goods would do so, if it were due to a rise in the price of the latter. In other words, it may be the case that within a certain range the demand of labor is for a minimum money-wage and not for a minimum real wage. The classical school has tacitly assumed that this would involve no significant change in their theory. But this is not so. For if the supply of labor is not a function of real wages as its sole variable, their argu
A. labor resisted a reduction of money-wages, which characterized the depression of the 1930s in the U. S.
B. labor demanded a real wage, which characterized the depression of the 1930s in the U.S.
C. neither labor refusing to work for a lower money-wage nor demanding a real wage could characterize the depression of the 1930s in the U. S.
D. both A ＆ B
[单选题]当降雨量达到()量级时，普速山区铁路应安排人员出巡。平原和丘陵铁路以及高速铁路由铁路局根据情况研究确定。
A.大雨
B.中雨
C.暴雨
[单项选择]事故应急救援体系的基本构成中，（ ）是全国安全生产应急管理体系的重要保障。
A. 组织体系
B. 运行机制
C. 法律法规体系
D. 支持保障系统
[多选题]易燃液体泄漏流淌，可向流淌液体表面大量喷射泡沫，并( )，并筑坝阻流或开槽引流，控制流淌蔓延范围。
A.低泡沫厚度
B.保持泡沫厚度
C.加快液体蒸发
D.阻止液体蒸发
[判断题]装卸作业要保证必要的人数，配备必要的辅助作业人员，确保装卸作业安全。连续作业2小时或1车后，应有不少于10分钟的间歇时间。
A.正确
B.错误
[判断题]高速铁路道岔发生故障时，工务、电务部门应联合对道岔故障进行检查，根据道岔故障检查情况，分别采取相应处理措施。
A.正确
B.错误
[判断题]重大误解的当事人自知道或者应当知道撤销事由之日起3个月内没有行使撤销权的，撤销权消灭。（ ）
A.正确
B.错误
[单项选择]当初步设计深度较深、有详细的设备清单时，最能精确的编制设备安装工程费概算的方法是（）。
A. 预算单价法
B. 扩大单价法
C. 设备价值百分比法
D. 综合吨位指标法
[单项选择]按照宪法的理论，制宪主体不同于制宪机关。下列关于我国宪法的制宪主体或制宪机关的说法中，正确的是（）。
A. 第一届全国人民代表大会第一次全体会议是我国的制宪机关
B. 全国人民代表大会是我国的制宪主体，全国人民代表大会常务委员会是我国的制宪机关
C. 全国人民代表大会是我国的制宪机关，宪法起草委员会是它的具体工作机关
D. 全国人民代表大会和地方各级人民代表大会是我国的制宪机关
[判断题]饮食减肥塑身法是通过调节饮食,控制摄取的热量,不使热量过剩,减少脂肪堆积来达到减肥塑身。
A.正确
B.错误
[单选题]DDU的含义为（）。
A.信号屏
B.司机显示单元
C.多媒体屏
D.人机界面
[判断题]配合电器具有接通和控制电路电流的作用。（）
A.正确
B.错误
[单选题]作战行动应根据指挥员指令，编组实施，至少（ ）人以上协同配合，同进同出，严禁擅自行动。
A.3
B.4
C.1
D.2
[判断题]填写报检单时，报检单位应加盖单位公章，所列各项内容必须填写完整、清晰、不得涂改。“标记及号码”一栏应填写实际货物运输包装上的标记，如果无标记，应填写N/M。（）
[单项选择]下列关于人体应激的描述，错误的是（）
A. 应激反应指机体的反应
B. 应激对健康无益处
C. 指人类面对困难与逆境而产生的压力
D. 不同的应激有种类、性质、强度、频度等差别
E. 也称刺激反应
[判断题]线路自动闭塞分区区段内的钢轨必须导电，而相邻分区区段的钢轨必须绝缘。
A.正确
B.错误
[填空题]装煤车的作用是完成由（ ）往（ ）装煤的操作。
