热门试题:
[单项选择]经典抗精神病药物的主要药理学作用为与何受体的阻断有关：（）
A. 5-HT
B. D2
C. NE
D. D1
E. M
[单选题]临时性重要电力客户可以通过租用应急发电车(机)等方式，配置自备应急电源。
A.正确
B.错误
[单项选择]关于细胞免疫不正确的观点是（）
A. 需有抗原刺激
B. 由T细胞介导
C. 不需非T细胞参与
D. 释放淋巴因子引起迟发型变态反应
E. 特异性地杀伤作用
[多选题]《配电安规》可使用其他书面记录或按口头、电话命令执行的工作有（ ）。
A.A-测量接地电阻
B.B-砍剪树木
C.C-涂写杆塔号、安装标志牌
D.D-低压分支线的停电工作
[多项选择]一建筑面积为400000 SF商业建筑设计幕墙里面，哪个维护结构测试方法最适合该项目（）。
A. 热成像
B. 玻璃采样
C. 领域模型
D. 鼓风机门组件
[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 re-freshed 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 cau-tioned 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 ques-tionaires,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 like-ly 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
[单项选择]软件系统是指在计算机上运行的各种用途的程序和( )的总和。
A. 文档
B. 命令
C. 文件
D. 信息
[多选题].高层建筑室内消火栓给水系统由( )等组成。(多选)
A.消火栓箱、消防水箱
B.室内管网、市政入户管
C.消防水池、消防水泵
D.水泵接合器、消防控制室
E.湿式报警阀、配水管
[单选题]药品零头包装只限( )批号为一个合箱
A.1
B.2
C.3
D.4
E.5
[多选题]水炮按照安装方式可分为()。
A.固定式水炮
B.车载式水炮
C.移动式水炮
D.气动式水炮
[判断题]因为社会主义改造在1956年才完成,1954 年制定的宪法当然不能说是社会主义类型的宪法。( )
A.正确
B.错误
[判断题]工作零线必须经过漏电保护器，保护零线不得经过漏电保护器。
A.正确
B.错误
[多选题]这个新时代,是____。
A.承前启后、继往开来、在新的历史条件下继续夺取中国特色社会主义伟大胜利的时代
B.决胜全面建成小康社会、进而全面建设社会主义现代化强国的时代
C.全国各族人民团结奋斗、不断创造美好生活、逐步实现全体人民共同富裕的时代
D.全体中华儿女勠力同心、奋力实现中华民族伟大复兴中国梦的时代
E.我国日益走近世界舞台中央、不断为人类作出更大贡献的时代
[单选题]长征胜利地跨越了()个省，中央红军的总行程达2.5万里以上。
A.10
B.11
C.12
D.13
[单选题]硬座客票为（）.(客中)
A.浅蓝色
B.浅红色
C.浅绿色
D.白色无底纹
[判断题]遵纪守法、清廉从业是职业道德中的最高要求。( )
A.正确
B.错误
[判断题]起重设备经检验检测机构监督检验合格，并在特种设备安全监督管理部门登记。
A.正确
B.错误
[判断题]各科教材中都蕴涵着丰富的心理健康教育的内容
[单选题]498.列车运行监控装置屏幕显示器主窗口，以坐标（垂直线）的方式显示前方（ ）以内所有站的站中心位置，并用汉字标注对应车站的名称。
A.2000m
B.3000m
C.4000m
D.5000m
[单选题]( )会使前轮外倾发生变化，造成轮胎单边磨损。
A.纵横拉杆或转向机构松旷
B.钢板弹簧U形螺栓松旷
C.轮毂轴承松旷或转向节与主销松旷
D.前钢板吊耳销和衬套磨损
[填空题]HXD1D和谐型电力机车牵引电机通风支路走向：环境空气、空气进口侧墙过滤器、风道、牵引风机、风道支架、（ ）、牵引电机、车底大气。
[单项选择]Debates within the social sciences have______ an intellectual space which has.
A. constrained
B. occupied
C. dominated
D. restricted
[多选题]关于中国陶瓷与其它艺术门类的关系,表述正确的是( )。
A.青花矾红彩始于清初,常见彩绘图案为海水行龙或海兽。
B.文学名著中的故事情节用于装饰陶瓷
C.款式多样、釉色隽美的陶瓷茶具满足了茶文化口味
D.有多种陶瓷乐器,如陶铃、陶鼓、陶铙、瓷瓯、陶腰鼓、瓷箫等
E.细腻的陶瓷釉色与优美的诗词相互融合
[多选题]新投入或者经过大修的电力电缆特殊巡视内容是（）
A.电缆终端无异常声响
B.充油电缆终端无渗漏油现象
C.电缆终端无异常发热现象，三相终端温差应满足要求
D.电缆本体无破损、龟裂现象。
[单选题]优化劳动组织，实行检、养、修分开，大力推进（ ）专业化建设。【《普速铁路线路修理规则》第1.0.6条】
A.检测、修理
B.检测
C.修理
D.打磨
[单项选择]A technician notices that there is a second partition on the primary hard drive. This partitionis notassigned a drive letter and is not accessible from Windows. Which of the following is the MOST likely explanation for this extra partition?（）
A. Space reserved by the drive manufacturer for firmware.
B. Space set aside by Windows for use by the virtual memory swap file.
C. A potentially dangerous virus has been downloaded onto the system.
D. A recovery partition put there by the manufacturer.
[判断题]劳动者涉嫌违法犯罪被有关机关拘留或逮捕的，用人单位在其被限制人身自由期间，可与其暂时停止劳动合同的履行。暂时停止履行劳动合同期间，用人单位不承担劳动合同规定的相应义务。
A.正确
B.错误
[单项选择]______ the prisoner's good behaviour, he was placed on probation.
A. In case of
B. In terms of
C. In view of
D. In point of
[单选题]有载分接开关中在线滤油装置作用为(____)。
A.用于对分接开关油室里的油进行连续过滤
B.保证油具有较高的绝缘耐压水平
C.降低切换开关触头的机械磨损
D.提高切换开关的寿命
[单选题]空调机组压缩机DNS-D606WQ型低压压力开关电路接通压力为( )。
A.2.6 MPa±0.05 MPa
B.2.4 MPa±0.15 MPa
C.0.2 MPa±0.02 MPa
D.0.39 MPa±0.02 MPa
[单项选择]单纯的技术引进，主要体现在引进（）
A. 硬件技术
B. 成套设备
C. 技术软件
D. 技术许可
[单项选择]清明节三天假期，公司售后服务部要求每天三人值班，而且每天必须有两名男职员，安排服务部的4男3女值班的方法有多少种( )
A. 4
B. 18
C. 20
D. 22
[单选题]如果机场障碍物Ａ型图平面图的比例尺为1:10000，则起飞航径区的起点在图上的宽度为（）。
A.1.8cm
B.2.0cm
C.1.5cm
D.3.0cm
