热门试题:
[单项选择]粉末直接压片法常选用的助流剂是（）
A. 硬脂酸镁
B. 微晶纤维素
C. 微粉硅胶
D. PEG6000
E. 淀粉浆
[单选题] 年3月4日,胡锦涛在参加全国政协十届四次会议民盟、民进联组讨论时发表讲话,强调要引导广大千部群众个性是青少年树立以八荣八耻为主要资料的社会主义( )
A.荣辱观
B.价值观
C.人生观
[单选题]在其他条件不变的前提下,以下哪种做法容易引起机器学习中的过拟合问题( )。
A.增加训练集量
B.减少神经网络隐藏层节点数
C.删除稀疏的特征
D.SVM算法中使用高斯核/RBF核代替线性核
[单项选择] A youngster’s social development has a profound effect on his academic progress. Kids who have trouble getting along with their classmates can end up behind academically as well and have a higher chance of dropping out (退学). In the early grades especially, experts say, youngsters should be encouraged to work in groups rather than individually so that teachers can spot children who may be having problems making friends. "When children work on a project", says Lillian Kate, an educational professor at the University of Illinois, "they learn to work together, to disagree, to think, to take turns and lighten tensions. These skills can’t be learned through lecture. We all know people who have wonderful technical skills but don’t have any social skills. Relationships should be the first R."
At a certain age, children are also learning to judge themselves in relation to others. For most children, school marks the first time that their goals are not set by an internal clock but by the
A. have negative effects on his study
B. develop his individualism but limit his intelligence
C. eventually lead to his leaving school
D. have nothing to do with his achievements in a course
[判断题]调节阀选型时流量系数越大越好。
A.正确
B.错误
[单选题]拆除杆上导线前，应检查（ ），做好防止倒杆措施，在挖坑前应先绑好拉绳。
A.卡盘
B.拉线
C.埋深
D.杆根
[简答题][2022-03-06 17:52:51.804
[多项选择]EVA体系中，无息流动负债包括（）。
A. 应付工资
B. 应付账款
C. 应付票据
D. 应付福利费
[单选题]调制解调器(Modem)的功能是( ) 。
A.将计算机的数字信号转换成模拟信号
B.将模拟信号转换成计算机的数字信号
C.将数字信号与模拟信号互相转换
D.为了上网与接电话两不误
[单选题] 下列不能予以治安管理处罚的是（ ）。 (1分)
A. 丁经常给班花发信息邀约班花看电影，遭拒绝后经常半夜给班花打电话装鬼叫吓唬班花
B. 甲因爱慕一已婚女同事，经常给其发示爱信息
C. 乙因局长曾责怪自己，每天匿名给局长发短信称局长中奖，让局长不胜其扰
D. 丙因房檐滴水问题和邻居吵架后经常半夜给邻居打电话，打通后就挂
[单选题]【单选题】偏转副翼使飞机左转弯时,为修正逆偏转的影响,应( )
A.向左偏转方向舵
B.向右偏转方向舵
C.向右压杆
[单选题]当电动机转子绕组有两处接地时,电动机在带上负载后( )。
A.发热
B.声响
C.速度减慢
D.振动
[判断题]银行可以使用久期缺口来测量其资产和负债的信用风险。 ( )
[多选题]人工拆除建筑墙体时,严禁采用()的方法。
A.切割
B.掏掘
C.敲打
D.推倒
E.爆破
[单项选择]经皮神经电刺激疗法（TENS）临床常用频率和脉宽为（）
A. 频率2～160Hz，脉宽0.1～1ms
B. 频率1～100Hz，脉宽0.1～1ms
C. 频率2～160Hz，脉宽0.01～0.2ms
D. 频率1～160Hz，脉宽2～500μs
E. 频率1～100Hz，脉宽1～1000μs
[多选题]群众工作是公安工作的重要内容之一,下列方法有助于提高民警服务群众工作能力的有:
A.甲市公安局借央视“百家讲坛”形式,以授课方式传授民警做好群众工作的方法技巧
B.乙市公安局总结提炼民警在实践中形成的群众工作经验,上升为工作方法,进行推广,并在年底评选“最佳工作法”
C.丙市公安局设立“菜单式”培训课程体系,不同岗位的民警可选择不同的培训“套餐’
D.丁市公安局组织服务窗口的民警开展“法规政策一口清”“服务技能大比拼”等竞赛
[多选题]"超限、超重货物变更到站时,受理变更的车站以电报向铁路局重新申请,并注明( )。
A.原批准单位
B.电报号码
C.车号
D.新到站"
[简答题]因为不存在满意的替代程序来观察和计量期末存货，所以，审计人员必须对被审计单位的存货进行盘点。
[单选题]属于处理冲突的传统方法的是
A.拖延
B.组织目标
C.明确职责
D.公正原则
E.培训人员
[判断题] 信号电源屏主副屏转换过程中，应不影响信号设备正常使用。
A.正确
B.错误
[判断题]我们常说的安全生产“三违”行为就是违章作业、违章指挥、违章操作。
A.正确
B.错误
[单项选择]某钻井泵，实际流量为40（l/s），出口压力表读数20MPA、，输出功率为（）
A. 40kw
B. 20kw
C. 800kw
D. 800hp
[判断题]
变电站的综合自动化系统可以根据调控中心给出的电压曲线,自动调整站内相关设备的投切。
A.正确
B.错误
[判断题]二次电压是指整流变压器输出口的交流电压。
[判断题]在钻具中接入的投入式止回阀,其阀座短节尺寸要和所有的钻具一致,投入阀芯应能从短节上部钻具的最大水眼通过。
A.正确
B.错误
[判断题]企业要经常性开展安全隐患排查，并切实做到整改措施.责任.资金.时限和预案“五到位”。建立以安全生产专业人员为主导的隐患整改效果评价制度，确保整改到位。对隐患整改不力造成事故的，要依法追究企业和企业相关负责人的责任。对停产整改逾期未完成的不得复产。( )
A.正确
B.错误
[多项选择]老年人合理的膳食营养原则为（）。
A. 保持适宜体重
B. 提供恰当热量
C. 合理的饮食结构
D. 营养要素的全面供给
E. 药膳和补品尚无确切价值
[填空题]奔驰轿车内燃发动机(点燃式)用的气缸盖(不锈钢制)
[单选题]把深入学习贯彻( )作为首要政治任务,纳入局党组和各级党委理论学习中心组、各类教育培训的核心内容和必修课程。
A.新时代中国特色社会主义思想
B.马克思列宁主义
C.党的基本路线和各项方针、政策
D.以上都是
[单选题]Happy people work differently.They’re more productive,more creative,and willing to take greater risks.And new researchsuggeststhathappinessmightinfluence__1__firm’swork,too.Companies located in places with happier people invest more,according to a recent research paper.__2__,firms in happyplacesspend more on R&D（researchand development）.That’s becausehappiness is linked to the kind of longer-term thinking__3__formakinginvestmentsforthefuture.The researchers wanted to know if the__4__and inclination for risk-taking that come with happiness would__5__the way companies invested.So they compared U.S.cities’average happiness__6__by Gallup polling with the investment activityofpubliclytradedfirmsinthoseareas.__7__enough,firms’investment and R&D intensity were correlated with the happiness of the area in which they were__8__.Butisitreallyhappinessthat’slinkedtoinvestment,orcouldsomethingelseabouthappiercities__9__whyfirms there spend more on R&D?To find out,the researchers controlled for various__10__that might make firms more likely to invest–likesize,industry,andsales–andforindicatorsthataplacewas__11__tolivein,likegrowthinwagesorpopulation.Thelinkbetweenhappinessandinvestmentgenerally__12__evenafteraccountingforthesethings.The correlation between happiness and investment was particularly strong for younger firms,which the authors__13__to“less codified decision making process”and the possible presence of“younger and less__14__managers who are more likely to be influenced by sentiment.”The relationship was__15__stronger in places where happiness was spread more__16__.Firms seem to invest more in places where most people are relatively happy,rather than in places with happinessinequality.__17__thisdoesn’tprovethathappinesscausesfirmstoinvestmoreortotakealonger-termview,theauthorsbelieveit at least__18__at that possibility.It’s not hard to imagine that local culture and sentiment would help__19__how executives think about the future.“It surely seems plausible that happy people would be more forward-thinking and creative and__20__R&Dmorethantheaverage,”saidoneresearcher.20选？
A.prayfor
B.leantowards
C.giveaway
D.sendout
[单项选择]
American architecture is (1) its best when it is concerned with (2) that have a practical purpose. Factories, office buildings, public buildings, rail terminal and airports, and other such (3) show American architecture at its (4) imaginative and graceful, as well as its most (5) . The single most important American (6) design is the skyscraper, a style (7) in the late nineteenth century and since (8) as the trademark of American building. (9) the development of the steel skeleton and brick for buildings, the weight and low strength of stone and brick limited the (10) of the city office buildings (11) about twelve floors. (12) American cities grew larger in closing years of the 19th century, the (13) on which the structures might be placed because more valuable, the (14) for taller buildings increased. The use of steel (15) for construction was a direct response (16) t
A. country
B. land
C. motherland
D. state
[判断题]大型灾害事故处置时，应由指挥部指定专人指挥车辆集结、停放。
A.正确
B.错误
[判断题]禁止作业人员擅自移动或拆除遮栏（围栏）、标示牌。
A.正确
B.错误
[多选题]关于浮选机的说法，错误的有（ ）
A.为了提高粗颗粒的产率，应先择充气量大、搅拌力强、浅槽式浮选机。实践证明XJM-8型和喷射型浮选机对粗粒浮选效果好。
B.在浮选过程中，提高搅拌强度有利于提高煤粒与气泡碰撞机会，有利于提高浮选速度和浮精产率。
C.XJN—14型浮选机，其中N表示圆形叶轮
D.XJM—4型浮选机采用了双层伞形叶轮
E.丹佛D—R型浮选机是压气式机械搅拌浮选机
[判断题]安装电动座椅既要满足驾驶人多种姿势下的操作安全要求，也要满足乘员的舒适性和安全性的要求。（）
[判断题]进入立体库房巷道，检修堆垛机，检修完毕后，应确认巷道内无其他人员或遗留杂物，方可启动堆垛机。
A.正确
B.错误
[判断题]车辆检修作业时，必须在列车两端放置/悬挂“正在检修，禁止动车”牌。正
A.正确
B.错误
[多选题]对于DXMe模块的接口,一般包括()。
A.MVB接口
B.电源接口
C.地址码
D.输入接口
E..输出接口
[单项选择]下列哪项既是造成锁定的原因又是衡量锁定程度的主要指标？（）
A. 网络效应
B. 沉没成本
C. 交易费用
D. 转移成本
