热门试题:
[判断题]工程实施进度包括从项目开工至竣工验收整个过程,实施进度计划编制应根据各专业标准工期,结合工程规模、建设内容、供货计划、建设复杂度等情况进行编制,细化各个标准监控点完成所涉及的全部工作内容和时间计划。( )
A.正确
B.错误
[单选题]柴油机燃料系故障的常用检查方法之一是( )。
A.拉阻风门的检查
B.搭铁试火的检查
C.输油泵是否工作的检查
[不定项选择题]局部用散剂一般应为
A.最粗粉
B.细粉
C.最细粉
D.粗粉
E.极细粉
[单项选择]DEH控制系统规定的最大升速率是()。
A. 600rpm
B. 800rpm
C. 1000rpm
[单选题]石油基本上由碳、氢、( )等五种元素组成。
A.硫、钠、氧
B.硫、氮、氧
C.硫、氮、镁
D.氮、氧、钾
[判断题]()在登录FTP服务器前,一般要了解登录FTP服务器的用户名和密码、服务器地址以及端口号。
[单选题]306.口服铁剂的护理,下列哪项错误
A.应在饭后服用
B.禁饮茶
C.避免与维生素C同服
D.避免与咖啡、牛奶同服
E.液体铁剂应用吸管服用
[简答题]什么过程或要求可以删减?删减的原则是什么?试举例说明之。
[多选题]脚手架的护栏应设置( )。
A.A-0.6m处设中栏杆
B.B-不小于180mm高的挡脚板
C.C-防护立网
D.D-剪刀撑
[简答题]热泵热水器在寒冷的冬季空气温度非常低时能否使用?水温能够加热到多少?能效比为多少?
[单项选择]在阵列柜中有6个磁盘的情况下,磁盘利用效率最高的是()。
A. RAID1
B. RAID2
C. RAID3
D. RAID5
[单选题]两座建筑相邻较高一面外墙为防火墙,或高出相邻较低一座一、二级耐火等级建筑的屋面15m及以下范围内的外墙为防火墙时,其防火间距()
A.不限
B.可减少25%
C.不变
D.可减少50%
[单项选择]属于物理学评价的指标是
A. 肺尖充分显示
B. 两侧胸锁关节对称
C. 肩胛骨投影肺野之外
D. 左心影内可分辨出肺纹理
E. 肺野第2前肋间最高密度1.7±0.05
[单项选择]为了确保寿险公司内勤岗位之间的内部薪酬公平性,需要确定公司内部各个不同职位之间的相对价值,这一过程被称为()。
A. 职位分析
B. 职位评价
C. 薪酬调查
D. 工作设计
[判断题]被撤销的合同自撤销时起无效。 ( )
A.正确
B.错误
[单选题]、通事故后逃逸的,由公安机关交通管理部门吊销机动车驾驶证,且( )不得重新取得机动驾驶证
A.10年
B.12年
C.终生
[判断题]电渣焊适用于厚板、大断面、曲面结构的焊接,如火力发电站数百吨的汽轮机转子、锅炉大厚壁高压汽包等。( )(中)
A.正确
B.错误
[单选题] 硫化氢的浓度达到()时,会对生命和健康会产生不可逆转的或延迟性的影响。
A.阈限值
B.安全临界浓度
C.危险临界浓度
D.30mg/m3(20ppm)
[不定项选择题]共用题干
U. S. Scientists Confirm Water on Mars
NASA scientists said that Mars was covered once by vast lakes,flowing rivers and a Va-riety of other wet environments that had the potential to support life.
Laboratory tests aboard NASA's Phoenix Mars Lander have identified water in a soil sample;the lander's robotic arm delivered the sample Wednesday to an instrument that iden-tifies vapors produced by the heating of samples.
“We have water,”said William Boynton of the University of Arizona,lead scientist for ,the Thermal and Evolved-Gas Analyzer,or TEG
A.“This is the first time Martian water has been touched and tasted.”
The robotic arm is a critical part of the Phoenix Mars mission. It is needed to trench into the icy layers of northern polar Mars and deliver samples to instruments that will analyze what Mars is made of,what its water is like,and whether it is or has ever been a possible habitat for life.
The soil sample came from a trench approximately 2 inches deep.When the robotic arm first reached that depth,it hit a hard layer of frozen soil.Two attempts to deliver samples of icy soil on days when fresh material was exposed were foiled when the samples became stuck inside the scoop.Most of the material in Wednesday's sample had been exposed to the air for two days,letting some of the water in the sample vaporize away and making the soil easier to handle.
“Mars is giving us some surprises,”said Phoenix principal investigator Peter Smith of the University of Arizona.“We're excited because surprises are where discoveries come from. One surprise is how the soil is behaving. The ice-rich layers stick to the scoop when poised in the sun above the deck,different from what we expected,from all the Mars simulation tes-ting we've done so far.”
Since landing on May 25,Phoenix has been studying soil with a chemistry lab,TEGA, a microscope,a conductivity probe and cameras.The science team is trying to determine whether the water ice ever thaws enough to be available for biology and if carbon-containing chemicals and other raw materials for life are present.
The mission is examining the sky as well as the ground. A Canadian instrument is using a laser beam to study dust and clouds overhead.
“It's a 30-watt light bulb giving us a laser show on Mars,”said Victoria Hipkin of the Canadian Space Agency.
A full-circle,color panorama of Phoenix's surroundings also has been completed by the spacecraft.
“The details and patterns we see in the ground show an ice-dominated terrain as far as the eye can see,”said Mark Lemmon of Texas A & M University,lead scientist for
Phoenix's Surface Stereo Imager camera.“They help us plan measurements we're making within reach of the robotic arm and interpret those measurements on a wider scale.”
Why did the first two attempts to deliver samples fail?
A.The sample vaporized away.
B.Fresh material was exposed to the air.
C.The samples got stuck inside the scoop.
D.The robotic arm hit a hard rock.
[多项选择]设备监理的中心任务可以概括为( )等。
A. 设备质量控制
B. 合同管理和信息管理
C. 设备进度控制
D. 质量管理和风险管理
E. 设备投资控制
[单选题]安定保压试验,制动管充至定压后,置常用制动位,减压( )kpa,不得发生紧急制动,并确认制动缸活塞行程符合规定;同时保压1min内制动管压力下降不大于5kpa。
A.160kp
B.150kpa
C.140kpa
D.180kpa
[单选题]在下水道、煤气管线、潮湿地、垃圾堆或有腐质物等附近挖坑时.应设监护人,在挖深超过()的坑内工作时.应采取安全措施.如戴防毒面具、向坑中送风和持续检测等。
A.1m
B.1.5m
C.2m
D.2.5m
[单项选择]用铁剂治疗缺铁性贫血,疗效表现最早的为().
A. 血红蛋白增加
B. 网织红细胞增加
C. 红细胞体积增大
D. 红细胞平均血红蛋白量增多
E. 红细胞计数增多
[多选题]银行本票的()依托小额支付系统办理。
A.业务处理;
B.提示付款;
C.背书转让;
D.资金清算
[单项选择]广义而言,中药的毒性的含义是()。
A. 配伍不当出现的反应
B. 药不对症出现的不良反应
C. 常规剂量出现的与治疗无关的不适反应
D. 中药的偏性
E. 服药后出现过敏反应
[判断题]为保证爆炸品储存和运输的安全,必须根据各种爆炸品的性能或敏感程度严格分类,专库储存、专人保管、专车运输。
A.正确
B.错误
[单项选择]以下不属于原始反射的是()
A. 拥抱反射
B. 阳性支撑反射
C. 紧张性颈反射
D. 紧张性迷路反射
E. 肱二头肌腱反射
[判断题]《铁路旅客运输规程》(铁运〔1997〕101号)规定,卧铺票的座别应与客票相同,但到站可近于客票的到站。
A.正确
B.错误
[多项选择]下列交易中,一般会选择汇付、托收和信用证三者结合的是()。
A. 成套设备
B. 大型机械产品
C. 粮食
D. 交通工具
[判断题]根据《运营事业总部处置乘客恐慌及踩踏事件应急预案》:事故(事件)处理主任的确定:现场指挥部成立前,车站由站长助理,区间由司机担任、当站长助理到达后即由站长助理担任。
A.正确
B.错误
[单选题]吗啡的适应症是( )。
A.分娩止痛
B.支气管哮喘
C.心源性哮喘
D.颅脑外伤疼痛
E.感染性腹泻
[简答题] 装、拆接地线,应做好记录,许可、终结时应交待清楚。
[单选题] 扁平苔藓好发于
A. 青壮年男性
B. 青壮年女性
C. 中年男性
D. 中年女性
E. 老年女性
[单项选择]He did not go home ______ he finished the work.
A. if
B. because
C. until
[单选题]对党员的纪律处分,必须经过支部大会讨论决定,报党的基层委员会批准;如果涉及的问题比较重要或复杂,或给党员以开除党籍的处分,应分别不同情况,报( )审查批准。
A.省级纪律检查委员会
B.上级纪律检查委员会
C.县级或县级以上党的纪律检查委员会
[简答题]职业健康监护目的是早期发现职业病、职业健康损害和职业禁忌证。( )