热门试题:
[判断题]电网企业制定自身参与需求响应的实施预案，履约执行需求响应。
A.正确
B.错误
[单选题]《教育法》规定：国务院及县级以上地方人民政府根据实际需要，设立( )，扶持农村地区、民族地区实施义务教育。
A.民族教育经费
B.专项资金
C.教育基金
D.助学基金
[单选题]直接接触设备的电气测量，应（ ）。
A.单独进行
B.两人进行
C.有人监护
D.专人操作
[多选题]下列关于绕组变形试验的相关说法正确的是（ ）
A.绕组变形是指变压器绕组在机械力或电动力作用下发生的轴向或径向尺寸变化，通常表现为绕组局部扭曲、鼓包、位移等特征
B.幅频响应特性曲线低频段（1~100kHz）的波峰或波谷位置发生明显变化，通常预示着绕组的电感改变，可能存在匝间或饼间短路的情况
C.幅频响应特性曲线中频段（100~600kHz）的波峰或波谷位置发生明显变化，通常预示着绕组发生扭曲和鼓包等局部变形现象
D.幅频响应特性曲线高频段（>600kHz）的波峰或波谷位置发生明显变化，通常预示着绕组的对地电容改变，可能存在绕组整体移位或引线位移等情况
[单选题]应对网络产品和服务的（）、可控性进行审查。
A.A.稳定性
B.B.安全性
C.C.可靠性
D.D.检查
[多选题] 防止因高次谐波引起电容器过负荷的方法有( )。[1.0分]
A.合理选择电容器安装地点和容量
B.增加整流相数
C.装高次谐波滤过器
D.选取比接入电压低等级的电容
E.选择电容器的额定电压高于系统额定电压10%
[单项选择]某孕妇已确诊为过期妊娠，医生决定给予终止妊娠，而孕妇和家属担心对胎儿不利而未同意，不正确的处理方法是
A. 同意孕妇及家属意见，顺其自然
B. 配合治疗
C. 观察病情
D. 解释过期妊娠对胎儿的危害
E. 监测胎心
[单选题]具有补肾益精，养血益气功效的药物是
A.沉香
B.磁石
C.蛤蚧
D.益智仁
E.紫河车
[单项选择]与意志的自觉性相反的意志品质是 ( )
A. 盲从
B. 任性
C. 顽固
D. 优柔寡断
[单项选择]以辐射后的新信息为中心再进行辐射的推导，称之为（）
A. 要素辐射
B. 功能辐射
C. 范围辐射
D. 延伸辐射
[判断题]如遇自动制动机故障，动车组以外的旅客列车司机应通知司机立即组织列车乘务人员拧紧全列人力制动机，以保证就地制动；其他列车司机应立即采取安全措施，并向车站值班员（列车调度员）报告，请求救援。（）
A.正确
B.错误
[单选题]股道号码信号夜间—白色灯光左右摇动后，再上下摇动作成十字形为（）
A.七道
B.八道
C.九道
D.十道
[不定项选择题]共用题干
More Than 8 Hours Sleep Too Much of a Good Thing
1 .Although the dangers of too little sleep are widely known,new research suggests that people who sleep too much may also suffer the consequences.
2 .Investigators at the University of California in San Diego found that people who clock up 9 or 10 hours each weeknight appear to have more trouble falling and staying asleep,as well as a number of other sleep problems,than people who sleep 8 hours a night.People who slept only 7 hours each night also said they had more trouble falling asleep and feeling refreshed after a night's sleep than 8-hour sleepers.
3 .These findings,which DL Daniel Kripke reported in the journal Psychosomatic Medicine,demonstrate that people who want to get a good night's rest may not need to set aside. More than 8 hours a night.He added that“it might be a good idea” for people who sleep more than 8 hours each night to consider reducing the amount of time they spend in bed,but cautioned that more research is needed to confirm this.
4 .Previous studies have shown the potential dangers of chronic shortages of sleep一for instance,one report demonstrated that people who habitually sleep less than 7 hours each night have a higher risk of dying within a fixed period than people who sleep more.
5 .For the current report,Kripke reviewed the responses of 1,004 adults to sleep questionnaires,in which participants indicated how much they slept during the week and whether they experienced any sleep problems.Sleep problems included waking in the middle of the night,arising early in the morning and being unable to fall back to sleep,and having fatigue interfere with day-to-day functioning.
6 .Kripke found that people who slept between 9 and 10 hours each night were more likely to report experiencing each sleep problem than people who slept 8 hours.In an interview, Kripke noted that long sleepers may struggle to get rest at night simply because they spend too much time in bed.As evidence,he added that one way to help insomnia is to spend less time in bed.“It stands to reason that if a person spends too long a time in bed,then they'll spend a higher percentage of time awake.”he said.
Paragraph 2______
A.Kripke's Research
B.Dangers of Habitual Shortages of Sleep
C.Criticism on Kripke's Report
D.A way of Overcoming Insomnia
E.Sleep Problems of Long and Short Sleepers
F.Classification of Sleep Problems
[判断题]水煮法是将沥青裹覆后的集料在蒸馏水中侵煮3min，按沥青膜剥落的情况分为6个等级
[单选题]救援列车需要越过禁止信号前往救援地点时，OCC优先采用（）组织救援列车以RM模式动车。
A.引导信号
B.开放信号
C.禁止信号
D.关闭信号机
[判断题]为了提高功率因数，减少无功功率在电网中流通，无功补偿设备应在输电线路中间装设。
A.正确
B.错误
[判断题]中国革命的主力军是工人阶级。 ( )
A.正确
B.错误
[单选题]关于药物不良反应引起的功能性改变的叙述不正确的是
A.与患者的先天代谢异常有关
B.是指药物引起的人体器官或组织功能的改变
C.这种改变多数是暂时的
D.这种改变在停药后一般能恢复
E.这种改变会出现病理组织变化
[单选题]中共七届三中全会提出的当前阶段的中心任务是( )。【单选题】
A.消灭国民党反动派残余力量
B.争取国家财政经济状况的基本好转
C.在新解放区完成土地制度的改革
D.合理调整现有工商业
[单项选择]女26岁，怀孕20周。6月24日就诊。腹泻、呕吐伴轻度腹痛1天，体温39℃。腹泻10余次，稀便，呕吐1次。镜检WBC20/HP，RBC5/HP，该病例忌用的药物是（）
A. 诺氟沙星
B. 氨苄西林
C. 头孢曲松
D. 头孢他啶
E. 头孢拉定
[判断题]对于单层钢结构,主体结构变形检测需要检测整体垂直度和整体倾斜度。
A.正确
B.错误
[填空题]清代画家清初“四僧”指的是：弘仁（渐江）、（）、原济（石涛）、八大山人（朱耷）。
[单选题]局部腐蚀较多,危害较全面腐蚀严重,往往发生______造成机件损坏,甚至恶性事故。
A.严重破坏
B.突然破坏
C.缓慢破坏
D.异常破坏
[多选题]（）属于调试列车车次。
A.531
B.551
C.589
D.649
E.601
[单项选择]《被解放的耶路撒冷》写作背景是（）。
A. 宗教改革
B. 商业扩张
C. 古希腊殖民
D. 十字军东征
[单选题]先天性心脏病出现毛细血管搏动应考虑
A.室间隔缺损
B.房间隔缺损
C.动脉导管未闭
D.法洛四联症
E.肺动脉狭窄
[单选题]繁忙干线和干线封锁2 h以内的大型上跨铁路结构物施工为（ ）。
A.Ⅰ级施工
B.Ⅱ级施工
C.Ⅲ级施工
D.其他施工
[判断题]银行业金融机构高级管理层应当明确一名高管人员及牵头管理部门，配备相应资源，组织开展并归口管理绿色信贷各项工作。（ ）
A.正确
B.错误
[判断题]工作票只能由工作负责人填写。
A.正确
B.错误
[单项选择]水静力学的基本方程式为（）
A. P=P0+rh
B. P=P0+ρH
C. P=P0+gH
D. P=P0+γh
[单项选择]计量资料配对t检验的无效假设（双侧检验）可写为（）。
A. μ=μ0
B. μd≠0
C. μ1=μ2
D. μ1≠μ2
E. μd=0
[单项选择]在喹诺酮类抗菌药的构效关系中，这类药物的必要基团是下列哪点（）。
A. 1位氮原子无取代
B. 5位有氨基
C. 3位上有羧基和4位是羰基
D. 8位氟原子取代
E. 7位无取代
[判断题] 杆塔分解组立时主材和侧面大斜材未全部连接牢固前可以在吊件上作业。( ) (1.0分)
A.正确
B.错误
[单项选择]前庭蜗器中的感受器位于（）
A. 外耳
B. 中耳
C. 骨迷路
D. 膜迷路
[单项选择]
What Will Be is an impressive and visionary guide to the future, filled with insights on how information technology will transform our lives and our world in the new century.
The author, Michael Dertouzos, stands (1) from many of the forecasters and commentators who bombard us daily with (2) of this future. For twenty years he has led one of the world’s (3) research laboratories, whose members have brought the world (4) computers, the Ether Net, and start-up companies.
As a visionary, his (5) have been on the mark: In 1981, he described the (6) of an Information Marketplace as "a twenty-first-century village marketplace where people and computers buy, sell, and freely exchange information and information services." That’s a (7) description of the Internet as we know it today.
Naturally, we do not agree on all the (8) ways the new world will (9) or affect us. This is as it
A. lofty
B. supreme
C. alien
D. novel
