热门试题:
[判断题]4.88.
对于智能电能表,集中器每天0点10分起读取电能表的日冻结和曲线数据并存储,集中器应补抄最近3天的日冻
结数据。集中器抄读电能表次月1日零点的日冻结数据,转存为上月的月冻结数据。集中器应补抄当天曲线数
据。
A.正确
B.错误
[单项选择]线路设计行车速度300km/h,一般条件下,相邻两曲线间的夹直线和两缓和曲线间的圆曲线最小长度()m。
A. 280
B. 240
C. 210
D. 180
[单选题]设备中的填充物品如变电器、断路器、油浸式电抗器的变电压器油,不随设备供应,则填充物品属于()
A.A、材料
B.B、设备
C.C、备品备件
D.D、零部件
[单项选择]极低出生体重儿是指出生体重不足
A. 1000g
B. 1500g
C. 2000g
D. 2500g
E. 3000g
[判断题]蓄电池的充放电电流不得超过其允许的最大电流。
A.正确
B.错误
[单选题]山东省是一个气象灾害频繁发生的地区,在每年的春末夏初之际,经常出现的气象灾害是( )
A.洪涝
B.干热风
C.寒潮
D.台风
[判断题]在晶体二极管特性的正向区,晶体管相当于断开的开关。()
A.正确
B.错误
[单项选择]E-R图是表示概念结构的有效工具之一,在E-R图中的菱型框表示()。
A. 联系
B. 实体集
C. 实体集的属性
D. 联系的属性
[单项选择]The spokes in a bicycle wheel are arranged in a ______ pattern.
A. radial
B. radical
C. spherical
D. spiral
[单选题]通过展示实物、教具或示范的现代化培训手段是( )
A.演示法
B.讨论法
C.小组法
D.讲授法
E.面试法
[简答题]试比较酸枣仁汤与天王补心丹的主治及用药特点。
[单选题]旅客违章携带物品补收运费时,不得超过本次列车的( )站。
A.始发
B.终点
C.中转
D.始发和终点
[多选题]有热导检测器的气相色谱仪可以分析(____)气体。
A.HF
B.SF<sub>6</sub>
C.CF<sub>4</sub>
D.空气
[单项选择]下列关于土地使用权转让方式,说法不正确的是()。
A. 土地使用权的转让有3种方式,即出售、交换、赠与
B. 土地使用权的出售,只转移土地使用权,所有权仍属于国家
C. 土地使用权交换是以一方当事人需要支配对方的土地使用权为前提,是双方当事人的合意,是一种权利客体的交换
D. 土地使用权赠与的基本特征是有偿,与出售一样,赠与的仍只是土地使用权,土地所有权仍归国家
[单项选择]目前常用的食品发色剂是()
A. 苋菜红
B. 亚硝酸盐
C. 亚硫酸铜
D. 赤鲜红
E. 红曲米
[单选题]在一个价值坐标迷失、文化生态混乱的现状中,人们难免东突西奔。
娱乐和恶搞一度几乎成为当下文化生活的主导,人们难以找到对于生命意义的共鸣
,对于价值观念的诠释,对于信仰信念的建设,对于至善至美的唤醒。
甚至连文化产品最核心属性的审美功能和教育功能都不能实现。
文化形态固然可以多元多义,活泼多样,然而与心灵无关的无聊、
与德性无关的任性,从来都是瓦解其精髓的敌人。因此,
人们在大时代火车呼啸着转弯之时,更需要文化的向心力和建设性。
这段文字意在说明:
A.文化形态多元多义,活泼多样均应有“度”
B.现代社会中的文化生态混乱问题亟待解决
C.应提高当下文化产品的功能性和使命感
D.社会转型期更需要加强文化的向心力和建设性
[单项选择]水冷壁、省煤器、再热器或联箱发生泄漏时,应( )。
A. 紧急停炉
B. 申请停炉
C. 维持运行
[多选题]道路运输证的经营范围仅为“货物专用运输(集装箱)”的,ETC发行方为其发行国际标准集装箱运输单一用途专用ETC,类型为( );道路运输证的经营范围除“货物专用运输(集装箱)”外,还有“普通货运”等其他项目的,ETC 发行方为其发行国际标准集装箱运输多用途专用E.TC,类型为
A.A.1
B.A.2
C.J.1
D.J.2
[不定项选择题]共用题干
Smoking can Increase Depressive Symptoms in Teens
While some teenagers may use cigarettes to "self-medicate"(自我治疗)against the blues(忧郁),sci-
entists at the University of Toronto and the University of Montreal have found that smoking may actually
______________
(51)depressive symptoms in some teens.
"This observational study is one of the few to examine the perceived ______________(52)benefits of
smoking among teens,"says lead researcher Michael Chaiton,a research associate at the Ontario Tobacco
Research Unit of the University of Toronto."_______________(53)cigarettes may appear to have self-medicating
effects or to improve mood,in the long_______________(54)we found that teens who started to smoke reported
higher depressive symptoms."
As part of the study,some 662 high school teenagers completed up to 20 questionnaires about their use
of cigarettes to ______________
(55)mood.Secondary schools were selected to provide a mix of French and
English participants,urban and rural schools,and schools ______________(56)in high,moderate and low so-
cioeconomic neighbourhoods.
Participants were divided into three
______________ (57):never smokers;smokers who did not use ciga-
rettes to self-medicate,improve mood or physical
______________ (58);smokers who used cigarettes to self-
medicate.Depressive symptoms were measured using a scale that asked how often participants felt too tired
to do things;had
______________ (59)going to sleep or staying asleep;felt unhappy,sad,or depressed;felt
hopeless about the future;felt anxious or tense;and worried too much about things.
" Smokers who used cigarettes as mood
______________( 60 ) had higher risks of elevated(提升)depres-
sive symptoms______________ (61)teens who had never smoked,"says co-researcher Jennifer O'Loughlin,a
professor at the University of Montreal Department of Social and Preventive Medicine."Our study found that
teen smokers who reported emotional benefits from smoking are_______________(62)higher risk of developing
depressive symptoms."
The______________ (63)between depression and'smoking exists______________(64)among teens that use
cigarettes to feel better."It's ______________(65)to emphasize that depressive symptom scores were higher
among teenagers who reported emotional benefits from smoking after they began to smoke,"says Dr. Chaiton.
_________(57)
A.groups
B.sets
C.species
D.versions
[单选题]进行项目的财务评价时,如果动态投资回收期小于计算周期n,则财务净现值FNPV( )。
A.<0,项目不可行
B.>0,项目可行
C.<0,项目可行
D.≤0,项目不可行
[多选题]旅客列车发生大面积晚点需补充餐料时,要共同检查餐料质量,并在上货单上签字确认后方可使用。
A.添乘干部
B.列车长
C.餐车长
D.厨师
[单项选择]关于雷诺病,错误的是( )
A. 肢端小动脉异常痉挛
B. 病因清楚
C. 血管神经功能紊乱
D. 多发生于女性
E. 和自身免疫因素有关
[单选题] 现场的机动车在特殊地点、路段或遇到特殊情况时的行驶速度不得超过( )km/h,并应在显著位置设置限速标志。
A. 5.0
B. 10.0
C. 15.0
D. 30.0
[单选题]可能是现存最早的窣堵波(stupa,即早期佛塔形式)被发现于( )?
A.乌尔城
B.尼尼微
C.摩亨佐 达罗
D.波斯波利斯
[判断题]牵出进路上设置有反向的并置调车信号机或差置调车信号机时,存在中途折返解锁的第二种情况。 ( )
A.正确
B.错误
[单选题]直流测速发电机的工作原理与直流发电机一样,但它要求负载电阻不要太 () 。
A.小
B.真 ]
C.大
D.稳
[填空题]电压互感器()电流随一次电流变化,而()电流不受二次电流影响。
[单选题]( )218脾呈紫红色,长而狭窄,质地较软的是( )。
A.牛
B.羊
C.猪
D.马
[单选题]消防站常态开展安全行动专项训练,训练时间每周不少于( )课时。
A.4
B.3
C.1
D.2
[单选题]根据《变电安规》,SF6配电装置发生大量泄漏等紧急情况时,人员应迅速撤出现场,开启所有排风机进行排风。未佩戴( )人员禁止入内。
A.防毒面具或口罩
B.防毒面具或正压式空气呼吸器
C.口罩或正压式空气呼
D.护目眼镜或正压式空气呼吸器
[填空题]数据模型可分为概念数据模型和结构数据模型,层次模型是 【14】 数据模型。
[判断题]基金托管协议草案是基金托管人向国务院证券监督管理机构提交、申请核准的基金托管协议文本,是明确基金托管人和基金份额持有人各自职责的协议。()
[判断题] 肾病综合征的临床特点是浮肿、血尿和高血压。( )
A.正确
B.错误
[单项选择]Personal computers and the Internet give people new choices about how to spend their time.
Some may use this freedom to share less time with certain friends or family members, but new technology will also let them stay in closer touch with those they care most about. I know this from personal experience.
E-mail makes it easy to work at home, which is where I now spend most weekends and evenings. (77) My working hours aren’t necessarily much shorter than they once were, but I spend fewer of them at the office. This lets me share more time with my young daughter than I might have if she’d been born before electronic mail became such a practical tool.
The Internet also makes it easy to share thoughts with a group of friends. Say you do something, fun--see a great movie, perhaps and there are four or five friends who might want to hear about it. If you call each one, you may tire of telling the story.
With e-mail, you just write one note about your experience, at
A. Computers: New Technological Advances
B. Internet: a New Tool to Maintain Good Friendship
C. Computers Have Made Life Easier
D. Internet: a Convenient Tool for Communication