热门试题:
[单项选择]高速运行的电子将靶物质原子中某层轨道电子击脱,形成空穴。此时,外层(高能级)轨道电子向内层(低能级)空穴跃迁,释放能量,产生X线,称为特征辐射。特征X线的波长由跃迁电子能量差决定,与高速运行电子的能量无关。高速电子的能量可决定能够击脱某壳层的电子。管电压在70kVp以下时,电子产生的动能不能把钨靶原子的K壳层电子击脱,故不能产生K系特征X线。与X线产生无关的因素是()
A. 高速电子的动能
B. 靶面物质
C. 管电压
D. 阴极加热电流
E. 有效焦点大小
[单选题]“TZL20”表示额定防护时间为20 min的 消防自救呼吸器。
A. 过滤式
B.化学氧
C.隔离式
D.工作式
[判断题]保证事项未结束的,存款人不得提前支取保证金存款。
A.正确
B.错误
[单选题]依据《中国华电集团有限公司电力安全工作规程》的规定,工作票由工作负责人填写时,( )对工作票的全部内容确认无误后签发,并仍应将工作票全部内容向工作负责人作详细交代。
A.工作许可人
B.工作票签发人
C.当班值长
D.安全员
[判断题]燃烧产物对灭火工作有利方面为:在一定条件下有阻燃作用;为火情侦察提供依据。
A.正确
B.错误
[单选题]《国家电网战略目标深化研究报告》指出,电力市场化进程加快,政府监
管力度加大,“( )”的体制架构持续完善,市场在电力资源配置中的作用日益
显现。
A.管住两头、放开中间
B.管住开头、放开末端
C. 管住中间、放开两头
D.管住末端、放开开头
[简答题]一个农民种小麦,她以100美元把小麦卖给磨坊。磨坊又把小麦加工成面粉,它以150美元把面粉卖给面包师。面包师把面粉做成面包,她以180美元把面包卖给消费者。消费者吃了这些面包。
[单项选择]糖皮质激素类药物在哪个位置上引入双键可使其抗炎活性大大增强()
A. C-21
B. C-9
C. C-6
D. C-1
E. C-17
[单选题] 运维人员应根据( )进行保护装置的投停、定值区切换等操作。
A. 操作票
B. 整点单
C. 运行规程
D. 调控指令
[单项选择]依据《国务院关于特大安全事故行政责任追究的规定》的规定,中小学校对学生进行劳动技能教育以及组织学生参加社会公益劳动等实践活动,必须确保学生安全,严禁组织学生从事接触易燃、易爆、有毒、有害等危险品的活动,否则,对校长给予( )的处分。
A. 记大过
B. 降级
C. 撤职
D. 开除
[单项选择]视网膜硬性渗出是由于()
A. 视网膜局部缺血
B. 脂质沉着
C. 视网膜深层缺
D. 神经胶质细胞增殖
[单选题]装有SF6设备的配电站,应装设强力通风装置,风口应设置在(),其电源开关应装设在门外。
A.室内中部
B.室内顶部
C.室内底部
D.室内电缆通道
[单选题]Rising wages -- together with currency fluctuations and high fuel costs -- are eating away the once-formidable"China price" advantage, prompting thousands of factory owners to flee the Pearl River Delta. Much has been written about the more than doubling of wages at the Shenzhen factory of Foxconn, the world's largest electronics contract manufacturer, which produces Apple iPhones and iPads and employs 920,000 people in China alone."One can talk about a world pre- and post- Foxconn," says Victor Fung, chairman of Li & Fung, the world's biggest sourcing company and a supplier of Wal-Mart. "Foxconn is as important as that."
Foxconn's wage increases are only the most dramatic. Our analysis suggests that, since February, minimum wages have climbed more than 20 percent in 20 Chinese regions and up to 30 percent in some, including Sichuan. At a Guangdong Province factory supplying Honda, wages have risen an astonishing 47 percent. All this is bad news for companies operating in the world's manufacturing hub, and chief executives should assume that double-digit annual rises -- if not on the scale witnessed this year -- are here to stay.
Looked at another way, however, wage inflation provides companies with a once-in-a-generation opportunity to rethink radically the way they approach global production -- and they should do so sooner rather than later.
Why the urgency? After all, wage hikes in China are nothing new. Since 1990, they have risen by an average of 13 percent a year in U.S. dollar terms and 19 percent annually in the past five years.
There are two big reasons the situation is different now. The first has to do with productivity.
Over the past 20 years, productivity increases have broadly matched wage increase, negating their impact. The pay rises came from a very low base, so while average wages grew 19 percent a year from 2005 to 2010, this amounted to only ¥260 a month per employee, a sum that could be offset by more efficient production or switching to cheaper sources of parts and materials.
If labor costs continue, however, to increase at 19 percent a year for another five years,monthly wages would grew ¥623 per month, according to BCG estimates. Such an increase would ripple through the economy in the form of higher prices for components, business services, cargo-handling and office staff.
The second reason relates to societal change. Until now, if has been easy to lure a seemingly unlimited number of young, low-wage workers to the richer coastal regions and house them cheaply in dormitories until they saved enough to return home to their families in the interior provinces. In the future, though, young workers will be harder to recruit. This is partly because there will be fewer of them: Largely because of the country's one-child policy, the number of Chinese aged 15 to 29 will start declining in 2011. Moreover, with living standards rising across China, fewer of today's rural youth will want to go to coastal regions to toil for 60 hours a week on an assembly line and live in a cramped dormitory.
So what can CEOs do in this fast-changing environment? An instinctive reaction is to search for cheaper labor elsewhere. But this is short-sighted and would provide -- at best -- a short-term fix. Another option is to stay in China and try to squeeze out greater productivity gains.
Office Furniture, Inc, is strongly committed to balancing its__________ progress with social responsibility.
A.economic
B.economist
C.economically
D.economy
[单选题]国债偿债率是指当年到期还本付息的国债总额占( )的比例。
A.历年财政收入
B.当年财政收入
C.历年财政支出
D.当年财政支出
[判断题]信号的发送和接收采用一根线,在同一时刻只能一方发送另一方接收的串行通信模式称为全双工。
A.正确
B.错误
A.正确
B.错误
[多选题]电缆盘吊装时,应根据电缆盘的()等情况选择合适的吊装方式。
A.规格
B.材质
C.结构
D.厂家
[多选题] 根据《消防员职业技能标准》等级技能要求,消防技师应掌握( )等作业技能
A.侦检
B.输转
C.洗消
D.爆破
[单项选择]甲工厂排出酸性废水,含盐酸浓度为0.75%,流量为15.0m3/h,乙工厂排出碱性废水,氢氧化钠含量为1.5%,流量为7.0m3/h,则两种废水含HCi和NaOH的物质的量浓度分别是(),中和后废水的pH值是()。(注:HCi相对分子质量为36.5,NaOH相对分子质量为40)
A. 0.205mol/L、0.375mol/L,1.69
B. 3075mol/L、2625mol/L,4.69
C. 0.205mol/L、2.625mol/L,5.59
D. 2.625mol/L、0.375mol/L,1.12
[单项选择]石墙要分层砌筑,每层高300~400mm,每层中间隔()m左右砌与墙同宽的拉结石。
A. 0.5
B. 1.0
C. 1.5
D. 2.0
[多选题]职工与用人单位发生工伤保险争议的,可以依照相关规定,采取( )方式解决。
A.调解
B.仲裁
C.诉讼
D.上访
[多项选择]杠杆比率包括( )。
A. 资产负债率
B. 流动比率
C. 负债与所有者权益比率
D. 利息保障倍数
E. 现金比率
[单选题] "SYW”表示( )。
A.舒适硬卧车
B.硬卧车
C.高级卧车
D.双层硬卧车
[单项选择](2010)技术难度大、情况复杂、耗用人力和时间较多的房地产咨询报告,收费标准一般不超过咨询标的额的()。
A. 0.1%
B. 0.2%
C. 0.3%
D. 0.5%
[判断题]在开行工程车或电客车进行作业的封锁作业区域前后方,必须保证至少有一个站台区间空闲。( )
A.正确
B.错误
[单选题]大面积烧伤休克期病人出现烦躁,多由于:
A.疼痛
B.心理因素
C.早期毒血症
D.血容量不足
E.以上都是
[单选题]在信贷管理系统中,( )审查通过后,客户经理发起记账动作,并打印借据。
A.放款申请
B.未提交发放申请
C.发放入账
D.发放抹账
[单选题]接触网带电部分至固定接地物的距离,不小于300mm,距机车车辆或装载货物的距离,不小于350mm;跨越电气化铁路的各种建筑物与带电部分最小距离,不小于( )mm。
A.500
B.1000
C.1500
D.2000
[填空题]在线路允许速度120km/h<υmax≤160km/h正线上,调节器轨道静态几何不平顺容许偏差管理值中,水平的计划维修标准为()mm。
[单项选择]运用原料成本系数法计算产品价格,产品价格等于成本系数______原料成本额。
A. 除以
B. 乘以
C. 加上
D. 减去
[多项选择]关于骨疡型中耳炎正确的是()
A. 又称坏死型或肉芽型,病变可深达骨质
B. 耳持续性流脓,有臭味
C. 鼓室有肉芽或息肉
D. 轻度传导聋
E. 常有颅内外并发症
[多选题]多选题:接口单位在接口区域进行的( )作业需按分公司规定做好审批工作且不影响分公司客运服务及运营安全。
A.切割
B.烧焊
C.打磨
D.动火
[判断题]液压传动的工作原理是:以液压油作为工作介质,依靠密封容器的体积变化来传递运动,依靠液压油内部的压力传递动力。( )
A.正确
B.错误
[单项选择]按规范规定,搁置在墙上的板和400mm高的梁搁置长度分别不小于( )。
A. 60mm,90mm
B. 90mm,60mm
C. 120mm,180mm
D. 180mm,]20mm
[判断题]在漫长的社会经济活动中,土地在不断的改良活动中凝结了大量的人类活动结果。因此,在有人类活动的地区,土地实际上是自然和人类劳动相结合的产物。()
[判断题]紧急避孕药物对服药后的同房无保护作用。()