热门试题:
[单项选择]AFP为下列哪种肿瘤的标记物?()
A. 宫内膜癌
B. 黑色素细胞瘤
C. 肝细胞癌
D. 乳腺癌
E. 鼻咽癌
[填空题]在钢筋混凝土梁荷载试验时,必须在加载点与梁之间设置()。
[单选题]其他特殊危险场所、特殊容器进行的用火作业须办理( )作业许可证。
A.特级
B.一级
C.二级
D.三级
[多选题]施工项目资源,也称施工项目生产要素,是指生产为作用于施工项目的有关要素,施工项目资源管理的内容有( )。P161
A.劳动力
B.材料
C.机械设备
D.质量与安全
E.技术与资金
[单项选择]关于哺乳动物胚胎发育顺序排列正确的是()
A. 卵裂囊胚桑椹胚原肠胚
B. 受精卵卵裂囊胚桑椹胚原肠胚
C. 卵裂受精卵囊胚桑椹胚原肠胚
D. 受精卵卵裂桑椹胚囊胚原肠胚
[填空题]在现代技术经济条件下,能以工业规模开采的矿石聚集体叫做()。
[判断题]在邻近可能误登的其他鉄构架上,应悬挂“禁止攀登,高压危险!”的标示牌。
A.正确
B.错误
[简答题]1 根据《建设工程安全生产管理条例》,施工现场的安全防护用具、机械设备、施工机具及配件必须由专人管理,定期进行检查、维修和保养,建立相应的-------,并按照国家有关规定及时报废。
[多选题]下列灭火救援中消防车辆停靠通常有哪些安全要求?( )
A.扑救高危场所火灾时,车辆应当停在便于观察、便于展开、便于转移的安全位置,车头应朝撤离方向。
B.开展交通道路灭火救援时,救援车辆原则上应停靠在距离事故点车辆后方不少于50米的位置,且跨路斜停(车尾靠近来车方向)。
C. 处置公路隧道灾害事故,一般情况下车辆应停放在隧道两端洞外右侧。
D. 严禁在松软或者路基薄弱的地带、高压线下和危险建(构)筑物旁停靠。
[单项选择]企业在确定聘任人员时,为了避免以后的风险,一般坚持的原则是()
A. 员工的才能第一位
B. 员工的学历第一位
C. 员工的社会背景第一位
D. 有才无德者要慎用
[判断题]矿井总回风或一翼回风巷中瓦斯或二氧化碳浓度的测定地点应选在矿井总回风或一翼回风巷的测风站内进行.
A.正确
B.错误
[判断题]一张工作票中,工作票签发人与工作负责人可以互相兼任。
A.正确
B.错误
[单选题]变压器油在变压器内的作用为()。
A.绝缘冷却
B.灭弧
C.防潮
D.隔离空气
[单项选择]踢球力量的主要来源的是()。
A. 脚的力量
B. 踢球技术
C. 踢球腿的摆动
[单选题]除雪人员上下道,必须清点人数,必须由( )进行登销记。
A.现场防护员
B.驻站防护员
C.远端防护员
D.现场防护员和驻站防护员
[判断题]钢丝绳在运行中突然停车等受猛烈拉力时,受猛烈拉力一段的长度伸长1%时立即更换。
A.正确
B.错误
[多项选择]Which three BGP attributes are always communicated in a BGP update packet? ()(Choose three.)
A. MED
B. Origin
C. AS Path
D. Next Hop
E. Aggregator
[单选题]控制环境构成公司内部控制的基础,包括( )。
Ⅰ.经营理念和内控文化
Ⅱ.公司治理结构
Ⅲ.组织结构
Ⅳ.员工道德素质
A.Ⅰ
B.Ⅰ、Ⅱ
C.Ⅰ、Ⅱ、Ⅲ
D.Ⅰ、Ⅱ、Ⅲ、Ⅳ
[多选题]系统平均()和系统平均()之和是系统平均停电时间。
A.预安排停电时间
B.故障停电时间
C.检修停电时间
D.临时性检修停电时间
[单项选择]在SQL语言中,用于对查询结果计数的函数是( ).
A. SUM()
B. AVG()
C. MIN()
D. COUNT()
[多项选择]计量检定印证包括()等。
A. 检定证书
B. 检定结果通知书
C. 检定合格证
D. 检定专用章
[单选题]*我厂汽轮机轴瓦温度100℃报警,()℃停机。
A.120
B.110
C.140
[单选题]氧气瓶内的气体不能全部用尽,应留有余压( B )MPa。
A. 0.05~1
B. 0.1~0.3
C. 0.3~0.5
D. 0.5~1
[多项选择]工程师审查承包商索赔申请时,判断索赔是否成立的条件有( )。
A. 与合同相比,事件造成了承包商损失
B. 损失的原因不属于承包商责任,而属于分包商责任
C. 承包商在索赔事件发生后28天内向工程师提交了索赔意向通知
D. 承包商在索赔意向通知发出后28天内向业主递交了索赔报告
E. 索赔资料已经建设主管部门审查合格
[单选题]依据《道路交通安全法》的规定,下列关于机动车通行规定的说法中,正确的是( )。
A.前车为执行紧急任务的警车、救护车的,同车道行驶的机动车可以在保证安全的前提下进行超车
B.机动车遇有前方车辆停车排队等候或者缓慢行驶时,可以借道超车或者占用对面车道,以快速通行
C.在车道减少的路段、路口遇到停车排队等候或者缓慢行驶时,机动车应当依次交替通行
D.机动车载人不得超过核定的人数,客运机动车可以载货
[判断题]( )汽车防盗装置的分类按键式、电子钥匙式类型。
A.正确
B.错误
[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]病情凶险,预后不良者,指纹的表现是
A.显于风关
B.达于气关
C.达于命关
D.透关射甲
E.未超风关
[单选题]服务质量处罚种类有()
A.通报批评、警告、罚款
B.警告、罚款、行政处分
C.通报批评、罚款、行政处分
D.批评教育、警告、罚款
[单选题]期货合约是由( )统一制定的。
A.期货交易所
B.期货公司
C.期货业协会
D.证监会
[单选题]消防工作贯彻( )的方针
A.预防为主,防消结合
B.谁主管,谁负责
C.专门机关与群众相结合
D.人员与消防器材相结合
[多选题]酱香型国家名酒的感官评语应为微黄透明.酱香突出( )。
A.香气浓郁
B.幽雅细腻
C.清雅纯正
D.酒体醇厚
E.尾净爽口
F.回甜
G.回味悠长
H. 空杯留香持久
[判断题]总平面布局和平面布置中涉及消防安全的防火间距、消防车道、消防水源等问题,应作为消防设计审核的主要内容。()