第1题:[单选题]电气设备的金属外壳必须接地(接零),接地线要符合标准.有电设备( )
A.不准断开外壳接地线
B.设备正常时允许断开外壳接地线
C.允许断开接零线
参考答案:A
第2题:[单选题]《普速铁路接触网运行维修规则》中规定:单开、对称(双开)道岔的交叉线岔,两接触线高差,警示值:当一支为非工作支时,其距线路中心800mm处,非工作支接触线比工作支接触线抬高( ),并向下锚方向均匀抬升。
A.60~90mm
B.50~100mm
C.60~120mm
参考答案:A
第3题:[单选题]电容主要用于( )滤波、信号滤波、信号耦合、谐振、隔直流等电路中。[1分]
A.电源
B.电流
C.电阻
D.电感
参考答案:A
第4题: [单项选择]以下不属于对象的基本特点的是( )。
A. 分类性
B. 多态性
C. 继承性
D. 封装性
参考答案:C
第5题:[单选题]( ) 气井压井循环时,当压井作业液注满管柱内时,()不变。
A. 管柱内静液压力
B.立管压力
C.环空静液压力
D.井底压力
参考答案:D
第6题:[填空题]用于线路检测的计量器具投入使用前必须按规定进行( ),合格后方可投入使用,使用中应按计量检定规程规定的周期进行后续检定。
参考答案:首次检定
第7题:[判断题]《铁路旅客运输规程》中规定,成人带儿童或儿童与儿童不可共用一个卧铺。()
A.正确
B.错误
参考答案:B
第8题: [单项选择]片切前牙3/4冠的邻面时,应尽量少切割唇侧组织,其目的是()
A. 避免伤及邻牙
B. 避免唇侧金属暴露过多
C. 避免伤及牙龈
D. 容易去除倒凹
E. 增加固位力
参考答案:B
第9题: [单项选择]某项目需要投资3000万元,其最佳资本结构为60%负债:40%股权;其中股权资金成本为12%,债务资金则分别来自利率为8%和9%的两笔银行贷款,分别占债务资金的 35%和65%,如果所得税率为25%,该投资项目收益率至少大于( )时,方案才可以接受。
A. 18.32%
B. 8.69%
C. 5.54%
D. 10.08%
参考答案:B
答案解析:[解析] 加权平均资金成本=40%×12%+8%×(1-25%)×60%×35%+9%×(1-25%)×60%×65%=8.69%,方案的预期收益率不低于加权平均资金成本时,可以接受。
第10题:[单选题]患者,女性,22岁,检查患有白m病。在医院进行治疗的过程中,突然出现头痛、呕吐、视物模糊,瞳孔大小不等。应考虑为
A.脑炎
B.脑膜炎
C.颅内出血
D.败血症
E.中枢性白血病
参考答案:C
由于血小板减少,白血病患者可出现出血,其中颅内出血最严重。颅内出血主要表现为头痛、呕吐、瞳孔大小不等。
第11题:[单选题]有权机关办理查冻扣业务出具的文书类型包括( )
A.《冻结/解除冻结存款通知书》
B.《扣划存款通知书》
C.《查询存款通知书》
D.全部都对
参考答案:D
第12题: [单项选择]行业完整的生命周期中,显示出高风险高收益特征的是()。
A. 初创期
B. 成长期
C. 稳定期
D. 衰退期
参考答案:B
第13题:[判断题]低压综合配电箱采取悬挂式安装,下沿距离地面不得低于 2.0 米。
A.正确
B.错误
参考答案:B
第14题:[单选题] 实验证明,在离单极接地体( )远的地方,电位已趋于零,这个电位为零的电气地,在工程上就叫地电位。
A.5m
B.10m
C.15m
D.20m
参考答案:D
第15题:[单选题]对于型号为“J961Y-320”的阀门下列叙述正确的是( )。
A.截止阀电动式焊接明杆单闸板硬质合金密封公称压力32MPa
B.截止阀手动式法兰暗杆单闸板液压密封公称压力32MPa
C.截止阀电动式内螺纹明杆单闸板硬质合金密封公称压力320MPa
参考答案:A
第16题:[单选题]在电气化铁路上,接触网的各导线及其相连部件,通常均带有( ) ,因此禁止直接或间接地(通过任何物件,如棒条、导线、水流等)与上述设备接触(接触网特殊带电作业除外)。
A.高压电
B.低压电
C.静电
D.感应电
参考答案:A
第17题:[判断题]需触网供电的动车施工与接触网停电施工在同一侧线路同时作业时,动车施工所在的触网供电区段与接触网停电区段的安全防护距离应不小于1个带电的触网供电区段。
A.正确
B.错误
参考答案:A
第18题:[判断题]游艇前进中,正横前来风,满载或半载、首倾、艇尾受风面积大,游艇逆风偏( )
A.正确
B.错误
参考答案:A
第19题:[单选题]
有关尿液酸碱反应的描述, 正确的是( )
A.正常尿液呈弱酸性
B.⻓期素⻝者呈中性
C.嗜好⾁⻝者呈酸性
D.服⽤氯化氨者呈碱性
E.⾼尿酸⾎症呈酸性
参考答案:D
第20题: [多项选择]贝尔接入设备要配置以太网业务,以下()部件是必须创建的?
A. ONTENET
B. PORTAL SERVICE
C. ONTCARD
D. PQ PROFILE
E. SESSION PROFILE
参考答案:A, C, D, E
第21题: [单项选择]对某地小学生近视进行调查,描述患者的年龄分布可选用的统计图为()
A. 线图
B. 直条图
C. 直方图
D. 构成图
E. 散点图
参考答案:C
答案解析:线图表示的是连续性资料的发展变化;直条图表示相互独立指标的大小,用于按质量分组的资料;构成图用于全体中各组成部分所占的比重或分布;散点图用于表示两事物间的相关关系;直方图用于表示连续性变量的频数分布或
第22题:[判断题]国家实施积极防御军事战略方针,防备和抵御侵略,制止武装颠覆和分裂。( )
A.正确
B.错误
参考答案:A
第23题:[单选题]在全部或部分带电的运行屏(柜)上进行工作时,应()
A.加派专责监护人进行专项监护
B.将检修设备与运行设备前后以明显的标志隔开
C.在工作票的备注栏注明带电部分,并严格执行工作安全交底。
参考答案:B
第24题: [简答题]房地产中介发布预售房地产广告应当出具什么材料?
参考答案:
中介机构发布所代理的预售商品房项目广告,除提供该项目的房地产开发企业资质证书、商品房预售许可证等有关证明文件外,还应当提供开发企业出具给代理人的委托书。
第25题: [单项选择]The man in the comer confessed to ______ a lie to the manager of the company.
A. have told
B. be told
C. being told
D. having told
参考答案:D
答案解析:英语中,一般只能用动名词作介词的宾语,如:He forgot about my asking him to join us for dinner.我请他和我们一起吃晚饭,但他把这件事给忘了。They
第26题: [单项选择]《全国生态环境保护纲要》中规定,建设项目确需占用生态用地的,应严格依法报批和补偿,并实行()的制度,确保恢复面积不少于占用面积。
A. “分级审批”
B. “分类审批”
C. “占一补一”
D. “占一补二”
参考答案:C
第27题:[判断题]物态文化即人们从事茶叶生产的活动方式和产品的总和。(
A.正确
B.错误
参考答案:A
第28题:[判断题]公务车、客车每次使用前消毒、灭鼠一次。发生传染病和发现“四害”时,应随时消毒、杀虫、灭鼠。
A.正确
B.错误
参考答案:B
第29题: [多项选择]PART 3
·What is your opinion on studying abroad
参考答案:Studying abroad is a good experience for college students. You can learn something different from what you can learn at your college in your country. Universities abroad offer many courses, which your university at home does not. Even if they offer similar courses, the content, concepts, and views covered and the assumptions and values they are based on may be different. Even if they are the same, studying them in a foreign language is different and worthwhile for language practice.
Advantages:
If you study abroad, you will study using a foreign language, which will be quite different from studying in your native language. You will study with friends from that country, and in many cases, you will study with friends from other countries as well, since many large universities abroad have many foreign students. Studying itself may be different. You may be required to read a lot; you will probably be expected to participate in discussions or/and make presentations in class; you may learn through doing something rather than just by reading and memorizing; you may need to write reports or do projects. In other words, you can expect something different in your learning experience, which you might find meaningful.
Living abroad itself can be a great experience for you. You will be on your own, and you need to take care of yourself. Your life will be quite different from your life in your native country, which will be quite challenging and interesting experience. You may live with a family or with friends in a dorm or an apartment. You will have many chances to get acquainted with local people.
You will also have opportunities to take part in many events on and off campus, where you will meet people and have new experiences with them. Universities have such academic and cultural events as lectures, movies, plays, concerts, and sports events. These experiences will help you understand the people and their culture better. You may find answers for your questions about them. It is much easier to understand their culture through experiences than just through books, movies, etc. Of course, you will have many, many opportunities to use the local language to communicate with people there, and your communication will be improved through living there.
Understanding a foreign language and culture helps you to understand your native language and culture better. You have thought many things natural, but you will learn that people in other countries do things differently and they think that their ways of doing things are natural. You will understand characteristics of your native language and culture better. You may understand how your people are different from other people. If you pay more attention, you will understand people are the same even if they have different languages and cultures, but as the surface, there are some differences, which could be barriers for understanding and communication.
Disadvantages:
Studying abroad is not necessarily an easy, pleasant, and happy experience for everyone. You are far away from your family for a long time, and you may not see them for a year or even longer. You cannot expect their help. You may not find people who understand you or your culture, and you may not feel comfortable. Particularly, when you have problems, you may feel very lonely and unhappy. You may miss your favorite food. You may need to eat only food local people are eating, which you may find hard to adjust to. You may have some difficulty expressing yourself in the local language. Studying in a foreign language might be very difficult. You will experience culture shock while you are living in a foreign country. However, these hardships make you better educated and trained. You will find much joy and satisfaction in overcoming these hardships.
第30题: [单项选择]金总公司所处的行业市场竞争非常激烈,产品和服务同质化现象严重,各家公司的利润都很微薄,金总的公司甚至已经开始亏损。面对这种情况,黎总应该采取()以开辟属于自己的市场空间,达到盈利的目的。
A. 蓝海战略
B. 红海战略
C. 北海战略
D. 深海战略
参考答案:A
第31题:[判断题]抵押人转让抵押财产的,可不用通知抵押权人,自行办理转让即可。
A.正确
B.错误
参考答案:B
第32题:[单选题]参与电力直接交易的电能替代用户按照《高(低)压供用电合同(电能替代用户)》约定价格向 缴纳电费。
A.A、电力交易中心
B.、综合能源公司
C.、供电公司
D.、发电企业
参考答案:C