第1题:
[单选题](____)是指发现设备缺陷后，根据重要状态量的改变，结合带电检测和在线监测等数据对设备进行的状态评价。
A.新设备首次评价
B.缺陷评价
C.不良工况后评价
D.检修后评价
参考答案:B
第2题:
[判断题]掘进机断电前一定要将截割部放置于底板上。（ ）A.正确
B.错误
参考答案:A
第3题:
[单选题]列车进路分为()种进路A.1
B.2
C.3
D.4
参考答案:D
第4题: [多项选择]
Can you explain why people buy stock on margin参考答案:
Suggested answers: a．Well, I don’t know much about stock market. As we all know, many people buy many things on credit, and stocks are no exception. Investors who qualify can make a stock purchase by paying E0 percent down and getting a loan for the remainder. This is called buying on a“margin”of E0 percent. The balance is borrowed at interest from the brokerage house and the stock certificates are deposited with the broker as security. The Federal Reserve Board regulates the minimum margins, the amount that must be paid in cash as a percentage of a purchase. The minimum margins vary, depending on whether there is need to stimulate the market or curb its speculative enthusiasm.
b．If an investor sells stock held on margin that has appreciated, the investor may pocket the profit and pay the broker the amount that was borrowed plus interest and commission. If the stock goes down, the broker can issue a“margin call,”and the investor is required to pay an additional amount into the account. If the owner cannot produce cash, some of the stock is sold at the investor’s loss. Buying stock on margin gives speculators (traders willing to gamble on high-risk situations) the opportunity of making more profit and also the risk of suffering greater losses.
c．At times the Federal Reserve Board requires a A00-percent margin, meaning that all stock must be paid for in cash. During the AIE0s, for example, the margin rate varied from a low of E0 percent to a high of I0 percent. A low rate, of course, stimulates stock buying, while a high rate discourages it. The first concern of most investors is the safety of their purchases. If necessary they will often take lower dividends to avoid great risk. In contrast, speculators hope to see the price of their stocks go up, usually within months, or even days, They are more interested in the future of the stock than in its earning power at the time of purchase. People who believe they can outguess the market try to buy before prices rise and sell before they fall.
d．There is also a group of speculators known as“short sellers. ”A short seller is someone who invests money because he or she expects a particular stock to go down in value. This person sells “borrowed”stock, in hope of replacing it later with stock bought on the open market at a lower price. This is one of the riskiest ways of investing in the market, because the price of a stock that is doing very well may rise tenfold or more, in which case the“short”gets“squeezed”for a big loss. Selling short is governed by specific rules to prevent abuses of a type that occurred in an earlier era on Wall Street.
e．The largest security market in the world in terms of the number of different stocks and bonds traded is the over-the-counter (OTC) market. OTC is not located in any one place, but is primarily an electronic communications network of stock and bond dealers. The National Association of Securities Dealers, Inc. , which has the power to expel companies, supervises these stocks or dealers determined to be dishonest or insolvent. The over-the-counter market tends to get stocks of smaller companies, and by the AII0s had come to be known as a market where many of the fastest growing“high-tech-nology”stocks could be bought and sold. Again, information about trading activity can be acquired through newspapers, magazines, or electronically. A brokerage house usually handles purchases and sales of these stocks along with those on the major exchanges.
f．Many persons who do not feel qualified to decide which stocks to purchase, but who nevertheless want to participate in the stock market in hopes of making a profit by doing so, turn to mutual funds. A mutual fund combines funds of its shareholders, which may be in small amounts, and invests large blocks of money in a varied portfolio of stocks, this reducing the risk, which is another reason why many people prefer this method of investing in stocks.
g．Another advantage of mutual funds to the customer is that the fund’s managers get professional advise from staff analysts. It is possible for a fund to employ such persons because the operation is on a large scale. There are dozens of kinds of mutual funds. Some are designed for income. Some for capital appreciation, and others are speculative with the chance for large gains or severe losses. Some deal only with stocks of specific industries, or stocks of foreign companies, or companies whose activities benefit the environment. The number and variety of funds proliferated greatly in the AIH0s; the total number of funds jumped from EBD to B,IAH over the decade, while the portion of U. S. households holding shares in mutual funds increased from F percent in AIGI to BE percent in AIHI.
答案解析:[解析] over-the-counter stocks场外交易股票。capital appreciation股本升值。brokerage经纪人佣金。 remainder余数，剩余部分。block冻结
第5题:
[单选题]下列选项中，不符合嗜铬细胞瘤消化系统表现的是（ ）。A.可引起腹泻
B.胆石症发病率增高
C.可引起胆汁潴留
D.可引起肠出血
E.可引起肠扩张
参考答案:A
嗜铬细胞瘤是嗜铬组织分泌儿茶酚胺所致的代谢紊乱。儿茶酚胺可使肠蠕动及张力减弱，故可引起便秘，甚至肠扩张，一般不出现腹泻。
第6题: [填空题]We may put the flowers in the classroom. (改为被动语态)
The flowers may ______ ______ in the classroom.
参考答案:be put
第7题:
[单选题]进口整车货物，以一辆车或数辆车接运一批货物以及数辆车套装接运数批货物(包括换装剩余的整车补送货物)，货物重量超过标重时，按()计费。
A.货物重量
B.60t
C.65t
D.接运车辆标重
参考答案:A
第8题:
[判断题]列车发生紧急制动停车后,检查车辆技术状态,可继续运行时通知司机开车。( )J340A.正确
B.错误
参考答案:A
第9题:
[单选题]根据序数效用理论，消费者均衡是()。A.无差异曲线与预算约束线的相切之点
B.无差异曲线与预算约束线的相交之点
C.离原点最远的无差异曲线上的任何一点
D.离原点最近的预算约束线上的任何一点
参考答案:A
根据序数效用理论，当无差异曲线与预算线相切时，达到消费者均衡，故A项正确、BCD错误。所以答案选A。
第10题:
[单选题]下列哪种服药方法正确A.酸剂用吸管服用
B.止咳糖浆服后多饮水
C.健胃药饭后服
D.磺胺类药物服后禁忌饮水
E.服药后可少量饮酒
参考答案:A
第11题:
[判断题]计量设备在线监测可以按单一异常类型、关联异常类型对各供电单位的设备异常情况进行汇总统计，查询单一异常、关联异常明细信息，并可对其进行相应的异常分析处理。（ ）
A.正确
B.错误
参考答案:A
第12题:
[简答题]事故紧急抢修工作，指电气设备发生故障被迫紧急停止运行，需短时间内恢复的抢修和排除故障的工作。（）
参考答案:正确
第13题:
[单选题]吸收塔操作中判断液泛的方法通常是().A.观察操作压力
B.观察操作温度
C.观察塔体液位
D.观察吸收剂流量
参考答案:C
第14题:
[判断题]3.88. 第88题测量绕组直流电阻的目的是检查绕组内部导线的焊接质量,引线与绕组的焊接质量,绕组所用导线的规格及三相 绕组直流电阻的平衡等.
A.正确
B.错误
参考答案:A
常规配电变压器高压直流电阻测量
第15题:
[单选题]( )确定实行土地革命和武装起义的方针。A.八七会议
B.遵义会议
参考答案:A
第16题:
[单选题]（）是激励全党全国各族人民奋勇前进的强大精神力量。A.中国特色社会主义文化
B.中国梦
C.社会主义核心价值观
D.爱国主义
参考答案:A
第17题:
[多选题]含有渣油的原料油进行预处理主要是为了除去（）元素。A.钠
B.硫
C.氮
D.金属
参考答案:BCD
第18题:
[多选题]电缆附件的密封工艺有（BCD）。A.机械密封
B.搪铅
C.橡胶密封
D.环氧树脂密封
参考答案:BCD
第19题:[多选题]
提高电力系统静态稳定性的主要措施，除减少系统各元件的电抗、采用自动调节装置外，还有(____)。
A.提高系统电压水平
B.改善电力系统的结构
C.采用串联电容器补偿
D.采用直流输电
参考答案:ABCD
第20题: [单项选择]
北洋舰队全军覆没的战役是（）A. 黄海海战
B. 威海卫之战
C. 辽东半岛之战
D. 北京保卫战
参考答案:B
第21题:
[多选题]禁止使用有（）的带电作业装备、工具。A.受潮
B.损伤
C.变形
D.失灵
参考答案:ABCD
第22题:
[单选题] 职业道德是社会经济关系所决定的( )。A.社会意识形态
B.社会观
C.社会形式
D.社会关系
参考答案:A
第23题:
[判断题]安全带上各种部件不得任意拆掉。更换新绳时要注意加绳套。A.正确
B.错误
参考答案:A
第24题:
[判断题]对带有220 V及其以上电压的电务设备进行作业时，一般应切断电源或一人监护一人作业。A.正确
B.错误
参考答案:A
第25题:
[单选题]现在的幼儿与几十年以前的幼儿的某些心理年龄特点，如思维的具体形象性、爱活动、爱游戏等特点基本相同。这说明儿童心理发展的年龄特征具有（ ）。
A.可变性
B.整体性
C.阶段性
D.稳定性
参考答案:D
现在的幼儿与几十年以前的幼儿的某些心理年龄特点，如思维的具体形象性、爱活动、爱游戏等特点基本相同，这说明儿童心理发展的年龄特征具有稳定性。比如皮亚杰在20世纪研究出的儿童认知发展的四个阶段：感知运动阶段(0—2岁)、前运算阶段(2—7岁)、具体运算阶段(7—12岁)、形式运算阶段(12—15岁)，是一直沿用到现在的。顺序性与阶段性更多的是指向儿童发展的内部，比如幼儿动作发展规律，体现的就是顺序性的特点；幼儿不同阶段呈现出不同的心理发展特点，则体现的是阶段性的心理发展特点。
第26题:
[判断题]跨越有缝隙的架空道路隔离带时,做好绳索保护,视情架梯通过,跨越位置应选择在事故点上风位置,避免受烟火影响。( )
A.正确
B.错误
参考答案:A
第27题:
[单选题]金属脚手架与±660kV及以下带电架空线路沿垂直方向的最小安全距离为()m。A.9;
B.10;
C.1l;
D.12
参考答案:D
第28题:
[单选题]指出下面正确的句子是A.变压器可以改变交流电的电压
B.、变压器可以改变直流电的电压；
C.变压器可以改变交流电压，也可以改变直流电压；
D.变压器可以改变频率。
参考答案:A
第29题: [简答题]
如何选择遮阳网？参考答案:
遮阳网的选择要从两个方面考虑：
一是蔬菜的种类：喜光、耐高温的蔬菜适宜选择遮光率较低的遮阳网；不耐强光或耐高温能力较差的蔬菜应选择遮光率较高的遮阳网；其它类型的蔬菜可根据相应的情况进行选择。
二是蔬菜的栽培方式：如果是以塑料大棚或温室冬春保护栽培为主，仅在夏季高温阶段进行临时遮阳越夏栽培，应选择遮光率高、降温效果好的黑色遮阳网。如果是以遮阳栽培为主要目的，则可根据蔬菜的类型以及当地蚜虫的发生情况，选择遮光率低或中等的黑色或银灰色遮阳网。
第30题: [判断题]
物流成本效益评估层是指在物流成本核算的基础上，再进行物流系统对企业收益贡献程度的评价，并进行物流系统经济效益的评估。在此基础上，对物流系统的变化或改革做出模拟模型，寻求最佳物流系统的设计。
参考答案:对
第31题: [单项选择]
一个易患龋齿者，如果想使他的牙不产生更多的龋，他可以选用的化学杀菌剂应是（）A. 丁香油
B. 麝香草酚乙醇
C. 洗必泰
D. 75%的乙醇
E. 木榴油
参考答案:C
答案解析:洗必泰又名氯已定，对细菌表面有亲和力，对革兰阳性、阴性菌均有强的抑菌作用，对变形链球菌、放线菌作用显著。因它可以和获得膜蛋白的酸根结合，滞留于牙表面，阻止附着。
第32题: [单项选择]
在数日内未射精的情况下，关于一次排精量，不正确的是A. ＞8ml为精液过多
B. ＜1.15ml为精液减少
C. 1～2滴为无精症
D. ＜1.5ml为精液减少
E. ＞8ml见于长时间未射精
参考答案:B
第33题:
[判断题]使用举高消防车救人时，工作平台严禁超载，平台上人员必须进行固定防护。此外，可以在工作平台内使用两节拉梯等无自身固定的延伸装置救人。（）
A.正确
B.错误
参考答案:B
第34题:
[单选题]根据《国家电网公司固定资产管理办法》，固定资产使用管理的原则是( )A.谁使用谁保管
B.谁保养谁保管
C.谁负责谁保管
参考答案:A
第35题:
[判断题]通信生产机房楼未经政府相关主管机构验收或验收不合格的，禁止投入使用。（判断） A.正确
B.错误
参考答案:A
《中国移动通信生产机房楼安全管理规定》第五条：通信生产机房楼的建筑设计、施工必须符合国家工程建设消防、安防技术标准，并依法经政府相关主管机构进行设计审核和竣工验收。未经政府相关主管机构验收或验收不合格的，禁止投入使用。
第36题: [多项选择]
工程项目质量的内涵，从功能和使用价值来看，包括（）等方面。A. 适用性
B. 可靠性
C. 设备完善
D. 外观质量
E. 环境协调
参考答案:A, E
答案解析:
[知识点] 建设工程质量
第37题:
[单选题]《中国南方电网有限责任公司电力安全工作规程》(Q/CSSG 510001-2015)第3.24条规定:( )是电网发电、输电、变电、配电、调度等生产作业安全有序实施而设计的一种组织性书面形式控制依据。
A.操作票
B.工作票
C.抢修单
D.作业指导书
参考答案:B
