热门试题:
[单项选择]
Text 2
Well, no gain without pain, they say. But what about pain without gain.’ Everywhere you go in America, you hear tales of corporate revival. What is harder to establish is whether the productivity revolution that businessmen assume they are presiding over is for real.
The official statistics are mildly discouraging. They show that, .if you lump manufacturing and services together, productivity has grown on average by 1.2% since 1987. That is somewhat faster than the average during the previous decade. And since 1991, productivity has in creased by about 2% a year, which are more than twice the 1978 - 1987 averages. The trouble is that part of the recent acceleration is due to the usual rebound that occurs at the point in a business cycle, and so is not conclusive evidence of a revival in the underlying trend. There is, as Robert Rubin, the treasury secretary, says, a "disjunction" between the mass of business anecdote that points to a
A. not as good as it seems
B. at its turning point
C. much better than it seems
D. near to complete recovery
[单项选择]加油站库存商品明细帐的调入栏以（）原发升数为准。
A. 管线
B. 罐车
C. 加油站
D. 石油库
[单选题]电力系统的稳定性干扰最严重的是( )。
A.发生三相短路
B.系统内发生严重两相接地短路
C.投、切大型空载变压器
D.单相接地故障
[单选题]可变助力转向系统依据( )信息来调节转向助力的大小
A.车轮速度
B.发动机转速
C.方向盘的旋转速度
D.乘员数量
[简答题]用人单位禁止预告解除劳动合同的对象和禁止经济性裁员对象有哪些？
[单选题]施工项目部是指由施工单位（项目承包人）成立并派驻施工所在地，代表施单位履行施工承包合同的组织机构。施工单位在（）应成立施工项目部。
A.项目中标后、工程启动前
B.项目中标后
C.项目启动前
D.项目启动后
[判断题]收车后应清扫电气控制屏。()(1分)
A.正确
B.错误
[单选题]作业现场的（）和安全设施等应符合有关标准、规范的要求，作业人员的劳动防护用品应合格、齐备。
A.安全装置
B.环境卫生
C.生产条件
D.技术措施
[单项选择]在Word格式中，使用“格式—字体”设置时，下列（）是不能设置的
A. 中英文字体
B. 字间距
C. 全部大写字母
D. 全部小写字母
[多选题]应急票的加封操作流程，以下描述正确的是（）
A.票卡加封时由当班值班站长和当班票款员两人在场确认
B.票卡加封的封条接缝处正反面分别加盖条形人名章“红色”不少于两处，站名章“蓝色”不少于一处
C.加封的封条空白处手写票种、数量张数及加封日期
D.封条上须注明“面额X元”和“有效期至X年X月X日”
[单选题]手持木杆、梯子等工具通过接触网时,必须(),不准高举超过安全距离。
A.水平通过
B.垂直通过
C.高举头上
[单项选择]某戴用全口义齿的患者，自诉在吃东西时，出现牙槽嵴连续性压痛，平时疼痛不明显，应考虑（）。
A. 在牙槽嵴上有骨尖，骨棱等骨质隆起
B. 基托边缘伸展过长或边缘过锐
C. 牙合关系有误
D. 基托边缘过短，边缘封闭不好
E. 系带部位基托缓冲不够
[单选题]混凝土枕线路冻害地段，在冻结后，冻起高度不超过15mm地段，可用（）整修。每处调高垫板不得超过2块，总厚度不得超过16mm（丝扣不足的螺旋道钉除外）。
A.调高垫板
B.普通垫板
C.加强垫板
D.撤除垫板
[单选题]变压器并列运行的条件之一,即各台变压器的一次电压与二次电压应分别相等,但可允许误差在( )以内。
A.±2%;
B.±5%;
C.±10%;
D.±15%。
[单选题]1.277. 第277题
人站立在地面上具有不同对地电压的两点，在人的两脚之间所承受的电压差,称为（ ）。
A.脚间电压
B.跨步电压
C.对地电压
D.站立电压
[判断题]( )线岔是保证电力机车受电弓，安全平滑地由一条股道接触线过渡至另一条股道接触线，达到转换线路的目的。
A.正确
B.错误
[单选题]依据《中国石化进入受限空间作业安全管理规定》（中国石化安【2015】675号），受限空间许可证一式四联，第三联由（）持有。
A.安全管理人员
B.施工人员
C.监护人
D.设备管理人员
[多项选择]甲公司为一家企业集团，下属业务单位包括食品加工、汽车制造、家电制造、服装加工等不同行业，目前正在实施下列并购计划，判断以下并购行为属于多元化并购的有（）。
A. 汽车公司并购广告公司
B. 矿泉水厂收购矿泉水瓶厂
C. 家电企业并购旅游公司
D. 面包厂收购面粉厂
[单选题]高铁线路运营环境的特殊性，旅客在疏散过程中容易引发踩踏.撞击.坠落.（）等次生事故。
A.触电
B.爆炸
C.窒息
D.坍塌
[判断题]股利相关理论认为，出于投资者偏爱当前收入和消除不确定性考虑，公司应采取高股利发放率的政策（）。
[多项选择]以下属于偏心受压的构件有（）
A. 恒荷载为主的多跨多层房屋的内柱
B. 屋架受压腹杆
C. 多层框架柱
D. 单层厂房柱
[单选题]我国目前常用的安全警示标志中的（ ），以绿色为背景的长方几何图形，配以白色的文字和图形符号，并标明目标的方向。
A.警告标志
B.指令标志
C.提示标志
[判断题]使用钳形电流表测量低压熔断器和水平排列低压母线电流时，测量前应将各相熔断器和母线用绝缘材料加以包护隔离，以免引起相间短路，同时应注意不得触及其他带电部分。
A.正确
B.错误
[填空题]出站信号机发生故障时，除按规定交递行车凭证外，对通过列车应预告司机，并显示（ ）手信号。
[单项选择]成人牙周炎与慢性龈炎的不同点为（）
A. 牙菌斑是致病因素
B. 有牙龈炎症
C. 龈沟深度加深
D. 有牙槽骨吸收
E. 需洁治治疗
[多选题]直线方向通常用该直线的( )来表示。
A.方位角
B.坐标增量
C.象限角
D.坡度
E.垂直角
[单选题] 热泵循环中的热源是取自于（)。A.冷凝器 B.压缩机 C.电热管 D.环境
A.A
B.B
C.C
D.D
[单选题]保险代位指的是保险人取得代投保人对第三者的求偿权（又称“追偿权”）或对标的的
()。
A.使用权
B.所有权
C.交易权
D.出租权
[判断题]施工现场应按规定配置和使用施工安全设施。设置的各种安全设施不得擅自拆、挪或移作他用。如却因施工需要，可拆除。
A.正确
B.错误
[多选题]根据燃烧条件和同火灾作斗争的实践经验，灭火的方法有( )
A. 隔离法
B. 窒息法
C. 冷却法
D. 抑制法
[单项选择]男性，42岁，脓血便1年，结肠镜见距肛门11cm处直肠肿物，病理证实为癌，手术方式应为（ ）
A. 乙状结肠造瘘术
B. 经肛门局部切除术
C. 经腹直肠部切除术
D. 腹会阴联合直肠癌根治术
E. 骶后径路局部切除术
[不定项选择题]共用题干
第二篇
The American Industry
A history of long and effortless success can be a dreadful handicap,but if properly handled,it may become a driving force.When the United States entered just such a glowing period after the end of the Second World War,it had a market eight times larger than any competitor,giving its industries unparalleled economies of scale.Its scientists were the world's best,its workers the most skilled.America and Americans were prosperous beyond the dreams of the Europeans and Asians whose economies the war had destroyed.
It was inevitable that this primacy should have narrowed as other countries grew richer. Just as inevitably,the retreat from predominance proved painful.By the mid-1980s Americans had found themselves at a loss over their fading industrial competitiveness.Some huge American industries, such as consumer electronics,had shrunk or vanished in the face of foreign competition.By 1987 there was only one American television maker left,Zenith.(Now there is none:Zenith was bought by South Korea's LG Electronics in July.)Foreign-made cars and textiles were sweeping into the domestic market. America's machine-tool industry was on the ropes.For a while it looked as though the making of semiconductors,which America had which sat at the heart of the new computer age, was going to be the next casualty.
All of this caused a crisis of confidence.Americans stopped taking prosperity for granted.They began to believe that their way of doing business was failing,and that their incomes would therefore shortly begin to fall as well. The mid-1980s brought one inquiry after another into the causes of America's industrial decline.Their sometimes sensational findings were filled with warnings about the growing competition from overseas.
How things have changed!In 1995 the United States can look back on five years of solid growth while Japan has been struggling. Few Americans attribute this solely to such obvious causes as a devalued dollar or the turning of the business cycle.Self-doubt has yielded to blind pride."American industry has changed its structure,has gone on a diet,has learnt to be more quick-witted,"according to Richard Cavanagh,executive dean of Harvard's Kennedy School of Government,"It makes me proud to be an American just to see how our businesses are improving their productivity,"says Stephen Moore of the Cato Institute,a think-tank in Washington,D
C.And William Sahlman of the Harvard Business School believes that people will look back on this period as"a golden age of business management in the United States."
The U.S.achieved its predominance after World War Ⅱ because______.
A.it had made painstaking efforts towards this goal
B.its domestic market was eight times larger than before
C.the war had destroyed the economies of most potential competitors
D.the unparalleled size of its workforce had given an impetus to its economy
[多项选择]预包装食品的包装标签应当标明事项的是（）
A. 保质期和贮存条件
B. 生产者的名称、地址、联系方式
C. 所使用的食品添加剂在国家标准中的通用名称
D. 食品生产经营过程的卫生要求
[多选题]DS6-K5B计算机联锁系统由（ ）组成。
A.人机界面层
B.联锁逻辑层
C.执行层
D.电源层
