热门试题:
[单选题] 造斜段狗腿度不许超过6度(30m的角度变化率),有30%的上限幅度,偶尔( )度也可以。
A. 7-9
B.9-10
C.6-10
D.10-12
[多选题]胶辊根据辊面胶料分为( )等几类。
A. 聚氨脂辊
B. 丁晴橡胶辊
C. 金属辊
D. 无纺布辊
[判断题]《动车组列车服务质量规范》规定,动车组列车车厢(客室)内禁止吸烟。
A.正确
B.错误
[单选题]依据《中国南方电网有限责任公司电力事故事件调查规程》(南方电网安监〔2021〕11号附件)第3.3.1条规定:发生电力事故后超过( )日的或道路交通事故、火灾事故后超过( )日的受伤人员死亡不再补报和重新统计。
A. 30;7
B. 30;15
C. 20;7
D. 15;10
[判断题]被转供户要求分摊变损时,若没有协议,则按被转供户的抄见电量进行计算和分摊,分摊给被转供户的损耗不参与转供户的电费结算,只参与被转供户的电费结算。
A.正确
B.错误
[单选题]严禁牵引电机( ),啮合试验电机未停止前进行反向试验。(红)
A.耐压
B.空载
C.绝缘
[多选题]中共十七大提出,加快转变经济发展方式,促进经济增长由主要依靠投资、出口拉动向依靠( )协调拉动转变。
A.生产
B.消费
C.投资
D.出口
[多选题] GPON系统中,二层数据转发模式有( )
A.C-Vlan learning模式
B.智能桥接模式
C.Cross-connect模式
D.TLS Vlan模式
[单项选择]某工程工期为4个月,2005年5月1日开工,5~7月份计划完成工作量分别为500吨、2 000吨、1500吨,计划单价为5000元/吨;实际完成工程量分别为400吨、1600吨、 2000吨,5~7月份实际价格均为4000元/吨。则6月末的投资偏差( )万元。
A. 增加450
B. 节约450
C. 增加200
D. 节约200
[判断题]生产经营的食品中不得添加药品,但是可以添加按照传统既是食品又是中药材的物质。
A.正确
B.错误
[单项选择]患者王先生,68岁。肝癌晚期,身体虚弱,抗癌治疗效果差,患者情绪不稳定,经常抱怨,与家属争吵。针对该患者的疼痛程度,应给予的镇痛药是()
A. 对乙酰氨基酚
B. 布洛芬
C. 可待因
D. 哌替啶
E. 美沙酮
[单项选择]以下缩写中表示临界胶束浓度的是()
A. HLB
B. GMP
C. CMC
D. MC
E. CMS-Na
[单选题](3951)长途挂运前检查向各传动轴的万向节头加注( )。
A.机油
B.齿轮油
C.液压油
D.润滑油脂
[判断题]老年人高血压药可以吃吃停停,即血压高时服药,血压低时停药。
[填空题]一般而言,三阳病的治则是以______为主,而三阴病的治则是以______为主。
[判断题]防雷装置的引下线应满足机械强度、耐腐蚀和热稳定性的要求。( )
A.正确
B.错误
[多选题]农村改革率先取得突破。在党中央的支持下,以( )为主要形式的家庭联产承包责任制迅速推广。
A.包产到户
B.包工到户
C.包干到户
D.包产到组
[单选题]少量⻝盐有加强醋酸( )的作⽤。
A.酸味
B.甜味
C.苦味
D.咸味
[简答题]木门窗框的安装方法有哪两种?各有何优缺点?
[简答题]灾害事故救援现场安全员负责现场观察监测和预警提示,检查个人防护装备,并与作业人员保持不间断联络。____
[判断题]非设备管理单位的施工,必须由设备管理单位检查人或指定人员在车站《行车设备施工登记簿》内签认。
A.正确
B.错误
[不定项选择题]共用题干
第二篇
Sleep Deficit
Judging from recent surveys,most experts in sleep behavior agree that there is virtually an epidemic(流
行病)of sleepiness in the nation."I can't think of a single study that hasn't found Americans getting less
sleep than they ought to,"says Dr. David.Even people who think they are sleeping enough would probably
be better off with more rest.
The beginning of our sleep-deficit (睡眠不足)crisis can be traced to the invention of the light bulb a
century ago.From diary entries and other personal accounts from the 18th and 19th centuries,sleep scien-
tists have reached the conclusion that the average person used to sleep about 9.5 hours a night."The best
sleep habits once were forced on us,when we had nothing to do in the evening down on the farm,and it was
dark."By the 1950s and 1960s,that sleep schedule had been reduced dramatically,to between 7.5 and 8
hours,and most people had to wake up to an alarm clock."People cheat on their sleep,and they don't even
realize they're doing it,"says Dr. David."They think they're okay because they can get by on 6.5 hours,
when they really need 7.5,eight or even more to feel ideally vigorous.
Perhaps the most merciless robber of sleep,researchers say,is the complexity of the day.Whenever
pressures from work,family,friends and community mount,many people consider sleep the least expensive
item on his programme.In our society,you're considered dynamic if you say you only need 5.5hours'
sleep.If you'ye got to get 8.5 hours,people think you lack drive and ambition.
To determine the consequences of sleep deficit,researchers have put subjects through a set of psycho-
logical and performance tests requiring them,for instance,to add columns of numbers or recall a passage
read to them only minutes earlier."We'ye found that if you're in sleep deficit,performance suffers,"says
Dr. David."Short-term memory is weakened,as are abilities to make decisions and to concentrate."
People in the 18th and 19th centuries used to sleep about 9.5 hours a night because they had_______.
A.no drive and ambition
B.the best sleep habits
C.no electric light
D.nothing to do in the evening
[单项选择]下列存储器按存取速度由快至慢排列,正确的是 () 。
A. 主存>硬盘>Cache
B. Cache>主存>硬盘
C. Cache>硬盘>主存
D. 主存>Cache>硬盘
[填空题]根据GB 2757-2012 食品安全国家标准 蒸馏酒及其配制酒的规定,白酒中氰化物含量( )
[单选题]桥隧保养质量评定标准中各种螺栓的保养标准行车时速120km及以上区段的桥面螺栓不得有缺少或( )失效
A.连二
B.连三
C.连四
D.连五
[单选题]安全照明电源应采用( )型低压变压器。
A.普通
B.双绕组
C.自耦
D.单绕组
[单选题]根据保险标的的不同,保险可以划分为:
A.财产保险和人身保险
B.原保险和再保险
C.个人保险和团体保险
D.自愿保险和强制保险
[单选题]汛期为上、下游防洪及水库安全运行而设立的允许最高蓄水位是( )。
A. 设防水位
B. 警戒水位
C. 保证水位
D. 汛限水位
[单项选择]Newspapers tend to ______ their influence on the way people vote.
A. exaggerate
B. allege
C. testify
D. assert
[填空题]微生物按其结构、化学组成及生活习性等差异可分成三大类:( )。
[单选题]甲欲杀乙,用菜刀对乙的胸部砍击,乙倒地后甲误认为乙已经死亡,便迅速逃离现场 乙被送到医院后经抢救脱离生命危险,但因护士在输液时用错药物致乙死亡 甲的行为构成()
A. 故意杀人罪(未遂)
B. 故意伤害罪
C. 故意杀人罪(既遂)
D. 过失致人死亡罪
[单项选择]盐碱地中,土壤溶液浓度(),导致植物吸水困难。
A. 较高
B. 等于
C. 较低
D. 不一定
[单选题]加强私募基金信息披露制度建设,规范私募基金信息披露义务人向投资者进行披露的内容和方式,有利于( )。
Ⅰ.保障私募基金投资者的收益权
Ⅱ.保障私募基金投资者的知情权
Ⅲ.保护私募基金投资者的合法权益
Ⅳ.促进市场资源的合理配置
A.Ⅰ、Ⅱ、Ⅲ
B.Ⅰ、Ⅲ、Ⅳ
C.Ⅱ、Ⅲ、Ⅳ
D.Ⅰ、Ⅱ、Ⅲ、Ⅳ
[单选题]生产经营单位不得使用应当淘汰的危及生产安全的( )。
A.工艺、设备
B.工具
C.原材料
[单选题] 允许速度Vmax≤120km/h正线地段,轨距Ⅱ级容许偏差管理值为()
A.+12mm,-8mm
B.+10mm,-7mm
C.+8mm,-6mm
D.+8mm,-4mm