热门试题:
[单项选择]一辆轿车的VIN代码是4P3CS34T8SE057192,其年款代码表示的年份是()。
A. 1999年
B. 1997年
C. 2000年
D. 1995年
[多项选择]站台门系统机械部分包括()。
A. 梁架承重结构
B. 门体结构
C. 门机传动系统
D. 电源系统
[简答题]LBE30082变压器并联运行的意义是什么?
[判断题]基层伙食单位设立厨房监督员,由班长和指定的消防员担任,定期轮换。( )[1分]
A.正确
B.错误
[多选题]上门服务人员凭()及()到柜员处领取空白印鉴卡、《中信银行人民币单位银行结算账户综合协议》等上门服务资料
A.客户营业执照
B.身份证
C.联网核查结果
D.经营机构负责人授权书
[单项选择]下列哪项增加心脏的压力负荷
A. 甲状腺功能亢进
B. 严重贫血
C. 主动脉瓣狭窄
D. 二尖瓣关闭不全
E. 主动脉瓣关闭不全
[单选题]1990年我国成功承办了()亚运会。
A.第八届
B.第九届
C.第十届
D.第十一届
[单选题]直流串励电动机在无负荷或负荷很轻时,负载电流小,转速就会很高,转速太高时就会导致机械破损,甚至毁坏电机,因此串励电动机规定不能在小于其额定负荷的( )%下运行。
A. 10
B. 20
C. 30
D. 50
[单选题]对于可能送电至停电设备的()都应装设接地线或合上接地刀闸(装置),所装接地线与带电部分应考虑接地线摆动时仍符合安全距离的规定。
A.A.线路侧
B.B.母线侧
C.C.各方面
D.D.负荷侧
E.略
F.略
G.略
[单选题]Text 3 If you're tired of swiping left and right to approve or reject the faces of other people,try something else:rating scientific papers.A web application inspired by the dating app Tinder lets you make snap judgments about preprints-papers published online before peer review-simply by swiping left,right,up,or down.Papr brands itself as"Tinder for preprints"and is almost as superficial as the matchmaker.For now,you only get to see abstracts,not the full papers,and you have to rate them in one of four categories:"exciting and probable,""exciting and questionable,""boring and probable,"or"boring and questionable."Papr co-creator Jeff Leek,a biostatistician at the Johns Hopkins Bloomberg School of Public Health,released an earlier version of Papr late last year but only started publicizing the app on social media earlier this month after his colleagues added a few more features,including a recommendation engine that suggests studies based on your preferences,an option to download your ratings along with links to the full preprints on bioRxiv,and suggestions for Twitter users with similar tastes as yours.What we want is to help researchers navigate the overwhelming number ofnew papers and uncover interdisciplinary overlap,Leek says.Scientists already use social media to discover new papers,he says;Papr aims to simplify that process and capture people's evaluations along the way.Four rating categories is enough,Leek says;other services,including PubPeer,offer space for longer comments and discussions.To prevent readers from giving their rivals'papers bad ratings or rate a paper as interesting just because it was written by a famous scientist,Papr doesn't show author names and doesn't let you search for a specific preprint or author."For me,the importance of Papr is illustrating that preprint services like bioRxiv enable novel methods of evaluation to emerge,"says Brian Nosek,executive director of the Center for Open Science in Charlottesville,Virginia."We don't believe that the data we are collecting is any kind of realistic peer review,but it does tell us something about the types of papers people find interesting and what leads them to be suspicious,"Leek says."Ultimately we hope to correlate this data with information about where the papers are published and other more in-depth measurements of paper quality."But don't take Papr too seriously,because its developers don't."This app is provided solely for entertainment of the scient讯c community and may be taken down at any time with no notice because Jeff gets tired ofit,"the Papr website says.35.The author implies in the last paragraph that Papr
A.deserves serious consideration.
B.is to be further developed by scientific community.
C.will be renewed without notice.
D.is still a immature software
[判断题] ( )在填料塔中,塔内装填一定高度的填料层,液体沿填料表面呈膜状向下流动,作为连续相的气体自下而上流动,与液体逆流传质。两相的组分浓度沿塔高呈阶梯变化。
A.正确
B.错误
[单选题]带电作业工具使用前应根据()校核机械强度,并满足规定安全系数。
A.气象情况
B.工作负荷
C.绝缘强度
[单项选择]Anne-Marie Garrard was shocked when it was announced that she had won the Personal Assistant of the Year award."The other (31) seemed to be very strong, and I have to say I found the selection really (32) ," she says,"I don’t think I had (33) of the chance to win. (34) I heard my name, my legs were (35) weak that I could hardly stand up. " She laughs.
So how was "the best" personal assistant (36) from a group of extremely good and very different individuals The (37) decision was reached after a whole day of tests,interviews and exercises. Garrard believe the skills she uses (38) her job helped her to perform well. (39) , although most of her work is for her company’s Managing Director, she works for six bosses (40) , so she always tried to be (41) for anything that might happen. Now her firm has (42) for its summer break, (43) Garrard is going to relax. (44) it
A. in all
B. for all
C. above all
D. at all
[单选题]无吊顶的房间,直立型标准喷头,其溅水盘与顶板的距离,不应小于()。
A. 75mm
B. 75cm
C. 150mm
D. 150cm
[判断题]杆件的弯曲变形如超过容许限度时,须加整修。( )
A.正确
B.错误
[单选题]道德产生的主客观条件统一于( )。
A. 社会实践
B. 社会意识
C. 社会规范
D. 社会认可
[简答题]结合实际分析我国社区工作存在的问题及其对策。
[单选题]供电企业根据申请办理拆表销户,由此引发的纠纷由()承担。
A.销户申请人
B.供电企业
C.供电所
D.村委会
[单选题]企业进行控制的主要依据是( )。
A.组织机构
B.规章制度
C.经营目标
D.计划
[判断题]Coral CFM网管系统可实时监测控制中心、车站和停车场设备的运行状态。可监测到的信息为:电源状态、接口状态、操作开始、结束时间及定位,告警产生和恢复的时间、类型等。( )
A.正确
B.错误
[单选题]我省高速公路计费规则调整之后,标准金额折扣后为33.995元的ETC用户,最终需扣款( )元。
A.33
B.34
C.33.99
D.33.9
[判断题]低瓦斯矿井采掘工作面瓦斯及二氧化碳每班应至少检査3次。( )
A.正确
B.错误
[判断题]用汽车运输气瓶,气瓶可以顺车厢纵向放置。
A.正确
B.错误
[简答题]什么是帕累托最优联系图形分析说明完全竞争经济的一般均衡状态是帕累托最优。
[单选题]以下有关突触后抑制的叙述,哪项是错误的:
A.由抑制性突触的活动引起;
B.突出后膜发生超极化
C.兴奋性神经元不会引起突触后抑制
D.突触前膜释放抑制性递质
[单项选择]下列建设项目经济评价指标中,属于静态指标的是( )。
A. 经济净现值
B. 利息备付率
C. 财务内部收益率
D. 财务净现值
[单选题]市政燃气管道由于道路开挖被损坏而导致燃气外泄,燃气外泄( ),呈喷射状,遇静电、火源还可能起火。
A.压力大
B.压力小
C.压力不变
D.压力适中
[判断题]( )26.AA003由于碳钢的机械性能较好,所以具有较好的工艺性能
A.正确
B.错误
[单项选择]What does Miss Gao do
A. Fourteen floors.
B. Fifteen floors.
C. Sixteen floors.
[单项选择]乙状结肠扭转钡剂灌肠的典型X线特征是()。
A. "鹅卵石"征
B. "鸟嘴"征
C. "杯口"征
D. "铅管"征
E. 充盈缺损
[多选题]根据《烟花爆竹安全管理条例》,需要取得许可的有( )。
A.烟花爆竹的生产
B.烟花爆竹的经营
C.烟花爆竹的运输
D.举办焰火晚会
[多项选择]根据劳动合同法律制度的规定,下列情形中,可导致劳动合同关系终止的有()。
A. 劳动者患病在规定的医疗期满后不能从事原工作,也不能从事由用人单位另行安排的工作
B. 劳动者死亡
C. 用人单位被吊销营业执照
D. 劳动者因工负伤并被确认丧失劳动能力
[单项选择]()是最好的开胃酒。
A. 味美思
B. 雪梨酒
C. 茴香酒
D. 波特酒
[多选题]属于救援三角架维护保养内容的有( )。
A.救援三角架是起重设备,必须每月由专门人员进行检查,每次使用前要检查吊索是否能正常的绕在铰轮上;
B.定期检查吊索的连接接头是否足够牢固;
C.绞盘上的吊索在放开时需留有三至四圈,以确保吊索不滑落;
D.救援三角架应存放在干燥处,定期加润滑油,不得与酸、碱等腐性液体存放在一起。
[填空题]No news (be) ______ good news.
[判断题]输转倒罐必须由专业人员操作,易燃易爆物质必须使用防爆输转设备。
A.正确
B.错误
[多选题]影响总需求变动的因素主要有( )。
A.利率
B.生产成本
C.货币供给量
D.政府购买
E.税收