热门试题:
[填空题]在晶体学上,选取与宏观晶体有同样对称性的平行六面体来作为(),它构成体的最小单位。
[判断题]振动台按其工作原理可以分为机械振动台、手动振动台和液压振动台。( )
A.正确
B.错误
[判断题]运规规定:铁路局机车调度每天12时前须向总公司机车调度汇报跨局机车在本局管内的回送动态。
A.正确
B.错误
[单选题]混凝土枕承轨槽压溃,深度超过( )是严重伤损。
A.2mm
B.3mm
C.4mm
D.5mm
[多选题]实施深井、地下等相对密闭空间救援时应采取哪些保护措施?( )
A.应佩戴空(氧)气呼吸器或使用移动供气源等防护装备
B.使用正压式排烟机、送风机、气瓶等进行吹扫置换,降毒增氧
C.设置预备力量,做好紧急救助准备
D.设置警戒或围栏,采取支撑稳固措施,防止人员拥挤和井口塌落
E.利用救援三脚架实施救援,提高救援安全效率
[多选题]当电力系统出现( )时,将出现零序电流
A.不对称运行
B.三相故障
C.相间故障
D.接地故障
[单项选择]适合测量口腔温度的是()。
A. 幼儿
B. 口鼻手术者
C. 呼吸困难者
D. 极度消瘦者
[单项选择]
In his book The Tipping Point, Malcolm Gladwell argues that "social epidemics" are driven in large part by the actions of a tiny minority of special individuals, often called influentials, who are unusually informed, persuasive, or well connected. The idea is intuitively compelling--we think we see it happening all the time--but it doesn’t explain how ideas actually spread.
The supposed importance of influentials derives from a plausible-sounding but largely untested theory called the "two-step flow of communication": Information flows from the media to the influentials and from them to everyone else. Marketers have embraced the two-step flow because it suggests that if they can just find and influence the influentials, those select people will do most of the work for them. The theory also seems to explain the sudden and unexpected popularity of certain looks, brands, or neighborhoods. In many such cases, a cursory search for causes finds that so
A. stay outside the network of social influence
B. have little contact with the source of influence
C. are influenced and then influence others
D. are influenced by the initial influential
[单项选择]混凝土发生碳化后,对结构耐久性的不利影响主要是()
A. 使混凝土的强度降低
B. 会导致混凝土开裂
C. 使混凝土碱度降低,对钢筋的保护作用减弱
D. 降低混凝土的弹性模量
[单项选择]按规定,医院感染按其病原体来源可分为
A. 外源性医院感染
B. 内源性医院感染
C. 外源性医院感染和内源性医院感染
D. 交叉感染
E. 自身感染
[填空题]Java中访问限定符有【 】,protected,private和default等。
[单选题]最能准确全面的概括中国移动工业互联网平台所支持部署方式的是( )。
A.私有化部署
B.公有化部署
C.私有化部署和公有化部署
D.以上方式均不支持
[不定项选择题]共用题干
Giant Structures
It is an impossible task to select the most amazing wonders of the modern world since every year more______(1)constructions appear. Here are three giant structures which are worthy of our admiration______(2)they may have been surpassed by some more recent wonders.
The Petronas Twin Towers
The Petronas Towers were the tallest buildings in the world when they were completed in 1999.______(3)a height of 452 metres,the tall twin towers,like two thin pencils,dominate the city of Kuala Lumpur. At the 41st floor,the towers are______(4)by a bridge,symbolizing a gateway to the city. The American architect Cesar Pelli designed the skyscrapers.
Constructed of high-strength concrete,the building______(5)around 1,800 square metres of office space on every floor. And it has a shopping centre and a concert hall at the base.Other______(6)of this impressive building include double-decker lifts,and glass and steel sunshades.
The Millau Bridge
The Millau Bridge was opened in 2004 in the Tarn Valley,in southern France. At the ______(7)it was built,it was the world,5 highest bridge,______(8)over 340m at the highest point. The bridge is described as one of the most amazingly beautiful bridges in the world. It was built to ________ (9) Millau's congestion(拥堵)problems. The congestion was then caused by traffic passing from Paris to Barcelona in Spain. The bridge was built to with-stand the______(10) extreme seismic(地震的)and climatic conditions. Besides , it is guar- anteed for 120 years!
The Itaipu Dam
The Itaipu hydroelectric power plant is one of the largest constructions of its kind in the world.
It______(11)of a series of dams across the River Parana,______(12)forms a natural border between Brazil and Paraguay. Started in 1975 and taking 16 years to complete, the construction was carried out as a joint project between the two______(13).The dam is well-known for both its electricity output and its size. In 1995 it produced 78% of Paraguay's and 25% Of Brazil's______(14)needs. In its construction,the amount of iron and steel used was equivalent to over 300 Eiffel Towers.It is a______(15)amazing wonder of engineering.
13._________
A.countries
B.provinces
C.members
D.regions
[多选题]下列哪些不燃性建筑材料()。(易)
A.玻璃
B.纤维板
C.石材
D.钢材
[单选题]空腹时正常血糖的浓度为( )
A.3.9-6.1mmol/L
B.4.0—9.2mmol/L
C.6.1—11.2mmol/L
D.10.0—13.0mmol/L
[单选题]【单选题】加氢装置中甲烷化反应是指()。
A.反应器壁中碳和氢气反应生成甲烷
B.一氧化碳和二氧化碳加氢生成甲烷
C.甲烷生成大分子烃类
[单项选择]在大多数情况下,测量基准应选择()。
A. 标准基准
B. 设计基准
C. 工艺基准
[单选题]关于单纯性小肠梗阻的X线表现描述,错误的是: ( )
A.阶梯状液气平面
B.大跨度的襻
C.鱼肋征
D.透视下可见液面上下移动
E.假肿瘤征
[多选题]信贷业务中所指的担保贷款包括____。
A.保证贷款
B.抵押贷款
C.质押贷款
D.混合贷款
[单选题]制作蛋泡糊时,可以制成较多蛋泡的是( )。
A.蛋清
B. 白糖
C.蛋黄
D.淀粉
[单选题]交流电能表属()仪表。
A.电磁系
B.电动系
C.感应系
D.磁电系
[不定项选择题]下列说法中,构成我国社会主义核心价值体系的是( )。
A.中国特色社会主义共同理想
B.实事求是的思想路线
C.人本、法治、科学、和谐
D.民主集中制
[判断题]KZW-4系列空重车自动调整装置支架是用精密铸钢件加工而成,安装在横跨梁上方车体中梁上,用4个螺栓紧固。
A.正确
B.错误
[多项选择]
(一)
连锁经营目前已成为目前世界各国普遍采用的一种现代化的商业经营模式和组织形式,从餐饮业的KFC、麦当劳到体育商品连锁店李宁、耐克,无不是连锁经营成功的典范。国内吧台式火锅店呷哺呷哺更是连锁经营成功的典范,目前以9天一家分店的速度扩张。这些经营企业中的众多成员店铺在经营理念、企业标识及经营商品、商品和服务以及经营管理上郜是一模一样的。
商品流通企业在创业店的基础上进行连锁扩张时,采用扩张区域策略要考虑( )因素。
A. 扩张区域的市场情况
B. 扩张区域的竞争水平
C. 扩张店与总店的销售水平
D. 扩张店与总店的地理分布
[单项选择]直方图分布充满公差带,两侧均无余地,反映出生产过程处于( )状态。
A. 正常
B. 较差
C. 不正常
D. 不经济
[判断题]《安规》第2.3.5条,线路中心位移一次不得超过30mm,一侧拨道量年度累计不得大于120mm,并不得侵入建筑限界。
A.正确
B.错误
[多选题]售票员开具的“铁路受理退票凭证”需登记乘车人的()等。
A.身份信息
B.支付方式
C.车票信息
D.联系方式
[填空题]当车站需要扣车时,在(____)上操作扣车,紧急情况下使用(____),并及时通知司机及报告行车调度员。
[多项选择]在环境管理体系审核中,以下哪些可以构成不符合()。
A. 生产车间工人没戴安全帽
B. 危险化学品库房的管理人员不知道甲苯的MSDS所描述的信息
C. 控制噪声的设施已损坏
D. 危险化学品库房有警戒标识
[单项选择]急性肾炎患儿,肢体浮肿,咳嗽气急,心悸胸闷,口唇青紫,脉细无力。治疗应首选
A. 速尿加己椒苈黄丸
B. 速尿加龙胆泻肝汤
C. 西地兰加己椒苈黄丸
D. 西地兰加龙胆泻肝汤
E. 二氮嗪加己椒苈黄丸
[判断题]操作过程中,操作人员可以根据实际情况更改操作票。
A.正确
B.错误
[单项选择]
《中国的和平发展白皮书》指出:中国和平发展道路归结起来就是既通过维护世界和平发展自己,又通过自身发展维护世界和平。我国走和平发展道路的根本原因()。
①和平与发展是当今时代的主题
②我国是人民民主专政的社会主义国家
③我国是安理会常任理事国之一
④我国的国家利益
A. ①④
B. ②④
C. ①②
D. ③④
[单选题]车场调度雾季期间每日()前确认天气状况,遇大雾天气及时向行调汇报大雾情况,告知行调车辆段提前发车,并通知信号楼值班员和派班调度做好安全预想
A.4:00
B.5:00
C.3:30
D.4:30
[判断题]《铁路旅客运输规程》中第59条规定,列车行李员应对托运人进行登记并告之安全等注意事项。
A.正确
B.错误
[判断题]冬季地面、通道的积雪积冰不易清除时,应采取防滑措施。
A.正确
B.错误
[单选题]指挥机车向显示人方向来的信号在昼间的显示方式为()。
A.展开的绿色信号旗上下摇动
B.拢起的红色信号旗直立平举,再用展开的绿色信号旗上下小动
C.拢起的红色信号旗直立平举,再用展开的绿色信号旗左右小动
D.展开的绿色信号旗在下部左右摇动
[判断题]《普速旅客列车车门管理规定》第十条 (二)规定:车门无法关闭但列车已启动时,列车工作人员应立即使用紧急制动阀停车,同时迅速通知车辆乘务员到场处理
A.正确
B.错误