热门试题:
[单项选择]Precision engine bearing inserts are manufactured with a small portion of the bearing ends extending beyond the bearing housing or capsThe installation process of these bearings requires sufficient （）.
A. overlap
B. crush
C. lap or lead
D. protrusion
[判断题]3.95.
承揽分布式光伏发电项目设计、施工的单位应根据工程性质、类别及电压等级具备政府主管部门颁发的相应
资质等级的承装(修、试)电力设施许可。
A.正确
B.错误
[单选题]掘路施工应做好防止（）的安全措施。
A.触电
B.交通事故
C.火灾
D.坍塌
[多选题]事故处理的步骤有（ ）。
A.尽快限制事故的发展，消除事故的根源，解除对人身和设备的威胁
B.用一切可能的方法，保持设备继续运行，以保证对车间内生产设备及馈线正常供电
C.明确电系运行方式，尽速对已停电的母线、馈线及电气设备恢复供电
D.调整系统运行方式，恢复其正常运行，禁止非同期点的并解
[单选题]全面推行清洁生产，从源头减少(____)的产生，实现由末端治理向污染预防和生产全过程控制转变。
A.废物
B.废气
C.矿渣
D.废水
[单项选择]为了解叶片结构，常将新鲜的叶片平放在小木板上，用双刀片迅速切割制成玻片标本，这称作（）
A. 装片
B. 切片
C. 涂片
D. 临时装片
[单选题] 自动飞行状态指示器（ASA）具有以下哪种功能：
A. 自动驾驶系统提醒警告。
B. 自动油门系统提醒警告。
C. 飞行管理计算机系统提醒警告。
D. 以上都是。
[填空题]The Joy of Living Alone
More and more Americans are living alone. Some live alone because of divorce or the death of a partner. (1) According to a recent US census (人口普查), 25 per cent of all households in the US are made up of just one person. This is a dramatic change from the extended families of just a couple of generations ago.
The typical person living alone is neither old nor lonely. (2) The majority of these people have chosen to live alone. They are responding to decreasing social pressure to get married and have a family.
It’s now socially acceptable, even fashionable, to live alone. As people get better jobs and become financially independent, it becomes possible for them to maintain a one. Person household. (3) However, people who do get married are marrying at a later age and divorcing more often.
The number one reason given by most people for living alone is that they simply enjoy doing what they want when they want to d
[单选题]（ ）是指示列车运行及调车作业的命令，有关行车人员必须严格执行。
A.信号
B.信号机
C.闭塞
D.连锁
[单选题]婴儿运动发展的规律是( )。
A.从最初局部的.准确的.专门化的,后逐渐分化为全身性的.笼统的.散漫的
B.从最初全身性的.笼统的.散漫的,后逐渐分化为局部的.准确的.专门化的
C.从最初局部的.笼统的.散漫的,后逐渐分化为全身性的.准确的.专门化的
D.从最初局部的,发生在下肢,后逐渐分化为全身性的.准确的.专门化的
[填空题]
Heather McCoy
Entering a bookstore, one cannot help but notice entire shelves devoted to books boating knowledge of the true path to happiness.
Whether this wave of infomercials and books can actually make people happier is the question. Happiness cannot be found by adhering to a narrow set of steps or rules. Finding happiness is not as simple as following a how-to manual, it’s something that every person must find in his or her own way.
Gary Russell
Does happiness grow proportionally with wealth Hardly.
Experiences teaches us material satisfaction comes only when one finds himself wealthier than those around him; and, in a like manner, one feels of being lowered when confronting a billionaire, while a worker with a monthly salary of several hundred dollars becomes the envy of the villagers in remote mountainous regions.
David Niven
True happiness is not a result from human action. Results are temporary whereas happine
[单选题] 埋头铆钉伸出部分长度,应为铆钉直径的( )。
A.0.8~1.2倍
B.1.25—1.5倍
C.1.5—2倍
D.2~2.5倍
[单选题]仓库的值班室与库房之间应有（ ）隔离措施。
A.防火
B.防潮
C.防噪
D.防晒
[单项选择]违反税法应承担的法律责任中的行政责任又分为两种，即（）。
A. 警告和降级
B. 行政处罚和行政处分
C. 警告和严重警告
D. 严重警告和降级
[单项选择]下列污染不属于化学污染的是（）。
A. 农药污染
B. 生物性污染
C. 食品添加剂使用过量
D. 包装材料中有害物质含量过多
[单选题]高层建筑通过水泵接合器加压供水时，应区分功能和供给范围，保证阀门处于开启状态，其中低区补水压力不应大于（）MPa。
A.1.2
B.1.6
C.2
D.2.5
[多项选择]专业技术人员常见的心理障碍表现有（）
A. 神经衰弱、癔病、焦虑症、强迫症
B. 自负、嫉妒、多疑
C. 自卑、干涉、羞怯、敌视
D. 高血压、冠心病、溃疡病、支气管哮喘
[填空题]各单位（ ）部门是各单位科技项目储备库归口管理部门。
[单选题]电力机车构架的主要承载梁是( )。
A.横梁
B.端梁
C.侧梁
D.枕梁
[单项选择]匀称体形正常人肝相对浊音界叩诊位置，下述哪项是错误的（）
A. 右锁骨中线第5肋间
B. 右锁骨中线第6肋间
C. 右腋中线第8肋间
D. 右肩胛线第10肋骨水平
E. 肝绝对浊音界比相对浊音界低1～2肋间
[判断题]施工单位的项目负责人应当由取得相应执业资格的人员担任,对建设工程项目的安全施工负责。( )
A.正确
B.错误
[单项选择]在到期日之前，虚值期权（）
A. 只有内在价值
B. 只有时间价值
C. 同时具有内在价值和时间价值
D. 内在价值和时间价值都没有
[判断题]《物权法》规定，以正在建造的船舶、航空器抵押的，抵押权自抵押合同生效时设立。
A.正确
B.错误
[单项选择]电接点压力表用来（）。
A. 测量瞬时压力值；
B. 测量最大压力值；
C. 测量最小压力值；
D. 当指针与压力高限或低限电接点闭合时，发出动作信号。
[简答题]简述Y341，Y411封隔器在关闭井下工作筒后坐封的技术要求。
[单项选择]The wandering ship was a dramatic symbol for a problem plaguing our age. In 1987, the ship, loaded with thousands of tons of New York garbage, spent weeks wandering from one port to another in search of a dump before finally returning home, mission unaccomplished.
New York, like other communities throughout the world is running out of space to put its trash. As throwaway societies, the US and other industrialized countries expect their garbage to be picked up by trucks that magically transported the refuse to some out-of-sight incinerator
(焚化炉) or dump. But in the developing counties of Asia, Africa and Latin America, thousands of tons of trash collected daily are thrown into open dumps, where it feeds huge populations of rats that swarm through poor neighborhoods.
"The world is literally swimming in garbage," says a scientist. "Communities worldwide are being forced to confront the problem." Green Peace spokesman Bryan Bence adds, "The crisis in garbage stems in part fro
A. the fact that we produce too much garbage
B. the fact that we’ve ignored long-term effect of disposal problems
C. the fact that the world is actually swimming in the garbage
D. the fact that we spend a lot of money disposing the garbage
[多项选择]关于理解组织环境的基本概念，以下哪些说法是正确的？（）
A. 理解组织的环境是一个过程。这个过程确定了影响组织的宗旨、目标和可持续性的各种因素
B. 组织环境需要考虑内部因素，还需要考虑外部因素
C. 组织的宗旨可被表达为其愿景、使命、方针和目标
D. 组织的宗旨可被表达为价值观和信仰
[单选题]现场除雪人员下道避车时，应站在距钢轨头部外侧（ ）m以外安全地点避车。
A.2
B.3
C.4
D.5
[单项选择]“白领通”贷款的最高金额为（）万元。
A. 5
B. 10
C. 15
D. 30
[单选题](49299)卡环( )是衡量吊重标准的依据，一般情况卡环直径越大容许载荷越大。(2.0分)
A.尺寸
B.结构
C.质量
D.结构形式
[多选题]属于A类现场作业违章行为有（）。
A.未按规定办理厂站、线路第一种工作票开展现场作业
B.存在感应电触电风险的导地线等设备作业时，个人保安线或接地线存在松脱或未有效接地情况
C.高压绝缘导线作业未按规定落实停电、验电、接地等安全措施，安排人员开展作业
D.水泥杆线路进行机械牵引、展放作业时，安排人员登杆作业
[判断题]NetFlow是流经路由器的有一定相同特征的一组网络数据包，通过七元组来定义。
[判断题]5.自动闭塞区段的通过信号机以显示停车信号为定位。
A.正确
B.错误
[单项选择]化学性危险和有害因素中的腐蚀性物质主要是指腐蚀性气体、腐蚀性液体、（）及其他腐蚀性物质。
A. 硫酸铵
B. 腐蚀性固体
C. 腐蚀性烧碱
D. 硝酸铵
[单选题]当人们认为自己的报酬与劳动之比，与他人的报酬与劳动之比是相等的，这时就会有较大的激励作用，这种理论称为（）。
A.双因素理论
B.效用理论
C.公平理论
D.强化理论
[单选题]《行车组织规则》规定，登乘机车、动车组司机室人员，一般不得超过（ ），影响机车乘务员工作时，司机有权拒绝。
A.一人
B.二人
C.三人
D.四人
