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[不定项选择题]共用题干
Batteries Built by Viruses
What do chicken pox,the common cold,the flu,and AIDS have in common?They're all diseases caused by viruses,tiny microorganisms that can pass from person to person. It's no wonder that when most people think about viruses,finding ways to steer clear of viruses is what's on people's minds.
Not everyone runs from the tiny disease carriers,though. In Cambridge,Massachu- setts,scientists have discovered that some viruses can be helpful in an unusual way. They are putting viruses to work,teaching them to build some of the world's smallest rechargeable batteries.
Viruses and batteries may seem like an unusual pair,but they're not so strange for engi-neer Angela Beicher,who first came up with the idea. At the Massachusetts Institute of
Technology(MIT)in Cambridge,she and her collaborators bring together different areas of science in new ways.In the case of the virus-built batteries,the scientists combine what they know about biology,technology and production techniques.
Beicher's team includes Paula Hammond,who helps put together the tiny batteries,and
Yet-Ming Chiang,an expert on how to store energy in the form of a battery.“We're working on things we traditionally don't associate with nature，”says Hammond.
Many batteries are already pretty small. You can hold A,C and D batteries in your hand. The coin-like batteries that power watches are often smaller than a penny. However, every year,new electronic devices like personal music players or cell phones get smaller than the year before. As these devices shrink,ordinary batteries won't be small enough to fit in-side.
The ideal battery will store a lot of energy in a small package. Right now,Belcher's model battery,a metallic disk completely built by viruses,looks like a regular watch battery. But inside,its components are very small一so tiny you can only see them with a powerful microscope.
How small are these battery parts?To get some idea of the size,pluck one hair from your head. Place your hair on a piece of white paper and try to see how wide your hair is一 pretty thin,right?Although the width of each person's hair is a bit different,you could probably fit about 10 of these virus-built battery parts,side to side,across one hair. These micro-batteries may change the way we look at viruses.
What is Belcher's team doing at present?
A.It is finding ways to get rid of viruses.
B.It is mass-producing micro-batteries.
C.It is making batteries with viruses.
D.It is analyzing virus genes.
[多项选择]单位工程质量验收合格的规定为（）。
A. 单位工程所含分部工程质量全部合格
B. 子单位工程所含分部工程质量全部合格
C. 生产线带负荷试运转全部符合设计要求
D. 单位工程质量控制资料齐全
E. 子单位机电工程质量控制资料齐全
[单选题]( )绝缘材料又称为电介质，其导电能力（ ），但并非绝对不导电。
A.很小
B.很大
C.没有
D.无穷大
[单项选择]变导程螺纹加工是通过增加或减少螺纹（）导程量的指令来实现可变导程的螺纹加工。
A. 每条
B. 每毫米
C. 每扣
D. 每转
[单项选择]纵向线应变的表达式为，在这个公式中，表述正确的是（）。
A. l表示杆件变形前长度
B. l表示杆件变形后长度
C. 的单位和应力的单位一致
D. 的单位是米或毫米
[简答题]依法催收适用于哪类不良贷款?
依法催收适用于债权关系明确.诉讼时效有效.借款人确有可执行财产的不良贷款。
14根据法律规定,不良贷款依法催收的主要可以采取哪些措施?
[简答题]LBE30165 10kV及35kV系统发生单相接地时，在什么情况下可采用人工转移接地的方法处理?
[判断题]†年1月14日印发的集团《关于2020年轨道交通运营安全管理工作的意见》中指出,按照市委市政府和市公安局的要求,集团将持续推进“智慧城市”平安建设。
( )
A.正确
B.错误
[判断题]创伤急救原则上是先固定、后抢救、再搬运。
A.正确
B.错误
[单选题]在充电电阻RC两端并联过压保护电路，保证辅助发电机电压过高或充电电流超过( )时，自动转入固定发电工况。
A.100A
B.110A
C.127A
[多选题]三相三线有功电能表A、B相电压互感器二次端钮极性反接，以下结论正确的是（ ）
A. 负载功率因数等于0.5时，电能表计量结果正确
B.负载为感性时表反转，为容性时表正转
C.功率因数角大于60o时，表走得快
D.功率因数大于0.5时，表走得慢
[多选题]多选题:加封完成的送行钱袋内金额由( )负责。
A.更换钱箱
B.报表填写
C.票款清点
D.加封人员
[单选题]生产经营单位的决策机构及其主要负责人未依照《安全生产法》规定保证安全生产所必须的资金投入,导致发生生产安全事故,尚未构成刑事处罚的,应对( )。
A.生产经营单位停产停业整顿
B.生产经营单位的主要负责人给与撤职处分
C.生产经营单位处以2万元以上20万元以下的罚款
D.生产经营单位的主要负责人处以2万元以上5万元以下的罚款
[判断题]可以使用1台局部通风机同时向2个作业的掘进工作面供风。( )
A.正确
B.错误
[多选题]根据《安全生产法》规定，安全生产监督检查人员应当将检查的（ ）、发现的问题及其处理情况，作出书面记录。
A.A . 时间
B.B . 地点
C.C . 内容
D.D . 见证人
E.略
[单选题]闭式自动喷水灭火系统的洒水喷头，其公称动作温度宜高于环境最高温度( ) 度。
A.15
B.20
C.25
D.30
[单选题]依据《关于印发现场作业违章扣分条款（2022第2 版）的通知》附件1现场作业违章扣分条款：下列哪项违章属于B类违章（ ）。
A. 非特种作业人员进行特种作业，包括无证从事高处作业；作业人员持假冒特种作业证从事特种作业
B. 现场开始工作前，工作负责人未向全体工作班人员宣读工作票，未明确交代工作内容、范围、分工、带电部位、安全措施等安全交代内容
C. 进入有限空间工作未严格执行“先通风、再检测、后作业”要求
D. 擅自拆除孔洞盖板、栏杆、隔离层，或因工作需要拆除附属设施时未设明显标志，未及时恢复
[多选题]在配电线路和设备上工作保证安全的技术措施有（ ）。？？？
A.停电
B.验电
C.接地
D.悬挂标示牌和装设遮栏（围栏）
[单选题]静电现象是十分普遍的电现象,( )是它的最大危害。
A.对人体放电,直接置人于死地
B.直接置人于死地
C.易引发火灾
[单选题]等电位作业人员对接地体的距离应不小于：220kV（）m，330kV（）m。
A. A.1.0；3.4
B.B.1.8；2.6
C.C.1.8；3.4
D.D.1.0；2.6
[多选题]关于ELM神经网络的描述,下列选项中正确的是(____)
A. 通过梯度下降法,利用反向传播的方式来进行学习
B. 是一种泛化的单隐层前馈神经网络
C. 容易形成局部极小值而得不到全局最优值
D. 输入层和隐含层之间的权重和隐含层节点的阈值是通过随机初始化得到的
[多选题]根据《国家电网有限公司安全事故调查规程》（国家电网安监〔2020〕820号），县级以上地方人民政府有关部门确定的特级或一级重要电力用户，以及（）、（）、（）等电网侧供电全部中断，为五级电网事件。
A.高速铁路
B.机场
C.电气化铁路
D.城市轨道交通
[填空题] 绳、网有严重磨损、断股、污秽及受潮时( )使用。
[单项选择]企业的资源可以分为内部资源和外部资源，其中，内部资源包括( )。
A. 市场资源
B. 产业资源
C. 信息资源
D. 行业资源
[单项选择]Questions 53 to 56 are based on the following passage:
The rise of multinational corporations, global marketing, new communication technologies, and shrinking cultural differences have led to an unparalleled increase in global public relations or PR.
Surprisingly, since modern PR was largely an American invention, the U.S. leadership in public relations is being threatened by PR efforts in other countries. Twenty years ago, for example, the world’s top five public relations agencies were American-owned. In 2003, only one was. The British in particular are becoming more sophisticated and creative. A recent survey found that more than half of all British companies include PR as part of their corporate planning activities, compared to about one third of U.S. companies. It may not be long before London replaces New York as the capital of PR.
Why is America lagging behind in the global PR race First, Americans as a whole tend to be fairly provincial and take more of an int
A. speak at least one foreign language fluently
B. are not as sophisticated as their European counterparts
C. are ignorant about world geography
D. enjoy reading a great variety of English business publications
[单选题]CRH5A型动车组空调系统压力保护类型是()
A.主动连续供气式
B.被动压力保护阀式
C.无压力保护
D.混合式
[单项选择]第一次世界大战是一场帝国主义战争，得出这一结论的主要依据是（）
A. 交战双方都是帝国主义
B. 战争是为了重新瓜分殖民地
C. 后起的帝国主义国家要压倒老牌帝国主义国家
D. 战争的深层原因是英德矛盾
[多选题]消防救援人员察看期间,受处分时不享有下列哪些权利( )
A.表决权
B.选举权
C.被选举权
D.申诉权
[单项选择]
In 1915 Einstein made a trip to G6ttingen to give some lectures at the invitation of the mathematical physicist David Hilbert. He was particularly eager too eager, it would turn (1) to explain all the intricacies of relativity to him. The visit was a triumph, and he said to a friend excitedly," I was able to (2) Hilbert of the general theory of relativity."
(3) all of Einstein’s personal turmoil (焦躁) at that time, a new scientific anxiety was about to (4) . He was struggling to find the right equations that would (5) his new concept of gravity,(6) that would define how objects move (7) space and how space is curved by objects. By the end of the summer, he (8) the mathematical approach he had been (9) for almost three years was flawed. And now there was a (10) pressure. Einstein discovered to his (11) that Hilbert had taken what he had learned from Einstein’s lectures and was racing to come up (12) the correct equations first.
It was an e
A. imitate
B. ignite
C. describe
D. ascribe
[单项选择]在生活中有时候可以看到一些人会反复地洗手，反复对餐具高温消毒，反复地检查门锁等，重复这类无意义的动作并使自己感到十分烦恼和苦闷，这就是神经症中的一种，称为强迫症。王强每天洗手的次数超过普通人的20倍，看来王强是得了强迫症。
以下哪项，如果为真，将对上述结论构成最有力的质疑
A. 王强在洗手时并没有感到任何的烦恼和苦闷。
B. 王强的工作性质是需要洁净卫生的。
C. 王强的家里人的洗手次数都比普通人高。
D. 王强并没有检查门锁的习惯，甚至有一次还忘记了锁家门，结果被盗。
E. 王强的同事也都经常洗手，比较起来，王强并不是洗手次数最多的人。
[单选题]《安全生产法》规定生产经营单位对（ ）危险源应当登记建档进行定期检测、评估、监控并制定应急预案。
A.一般
B.较大
C.重大
[多选题]边缘计算技术对传感器、智能设备、智能终端的多重数据进行就地处理与分析，就近
提供（ ），提高数据传输与处理效率，以满足电网中设备及用户的快速响应需求，为
智能调度、主动配电网、配电物联网等应用提供支撑。
A.边缘智能
B.安全保护
C.实时判决
D.数据优化
[单选题]铁路信号电源屏中的25HZ轨道电源是（ ）。
A.DC24V
B.AC24V
C.DC220V
D.AC220V
[多选题]矿山、金属冶炼建设项目和用于生产、储存、装卸危险物品的建设项目的施工单位应当加强对施工项目的安全管理，不得（ ）或者以其他形式非法转让施工资质。
A.倒卖
B.出租
C.出借
D.挂靠
