热门试题:
[单项选择]设有关系模式student(sno,sname,age),则约束“age BETWEEN 20 AND 40”属于哪一类关系完整性规则
A. 实体完整性规则
B. 参照完整性规则
C. 用户定义的完整性规则
D. 引用完整性规则
[多项选择]交通标志板外观质量检测主要包括()等。
A. 标志板平整度和标志板拼接缝
B. 标志面裂纹和气泡
C. 抗冲击性能
D. 防粘纸的可剥离性能
[单项选择]
在本节中,你将听到10个对话,每个对话有一个问题。请从[A],[B],[C]三个选项中出答案,并标在试卷的相应位置。每段对话后有20秒的停顿,以便回答问题和阅读下一题。每段对话读两遍。
[多选题]“一警六员“消防基本技能实操实训中,“四会”是指( )
A.会报警
B.会疏散
C.小火会用灭火器
D.大火会用消火栓
E.会启动自动消防设施
[多选题]外单位人员在从事( )工作应选用低压配电网工作票。
A.不需要高压设备停电或做安全措施的低压出线开关、主干线或多电源的分支线路停电的低压配电网工作。
B.低压配电网的穿刺带电工作。
C.需要高压设备停电的低压配电网作业
D.低压配电网巡视作业
[单项选择]根据存款合同设立的过程,存款机构收妥存款资金入账,并向存款客户出具存单或进账单,这属于( )。
A. 承诺
B. 申请
C. 要约
D. 审批
[单选题]下列是真理的客观性的含义是()。
A. 真理的内容是客观的
B. 真理是自然规律
C. 真理是社会规律
D. 真理是正确认识
[单选题]对于高铁运行的自轮运转特种设备,需配备CIR和GSM-R手持终端,并在始发前()分钟内注册成功。
A.10;
B.15;
C.20;
D.30
[填空题]关于列车联网补票有关事项的通知(运营客营电2015-800号),列车始发后、()均可办理该次列车的联网补票作业。
[判断题]八级及以上大风应停止高处作业。
A.正确
B.错误
[单选题]辅助线是为保证正线运营而配置的线路,包括折返线、停车线、渡线、()、联络线等。
A.正线
B.站内线路
C.区间线路
D.车辆出入线
[多项选择]计算机外部存储器主要有( )。
A. 磁盘
B. 光盘
C. U盘
D. 内存
[单选题]体重 60Kg的正常人体内血浆的量是
A.2.2L-2.5L
B.5L-5.6L
C.6L-7L
D.7L-8L
E.10L-12L
[单选题]账户开通后,所有客户在()进行产品订购
A.EBOSS;
B.省BOSS;
C.OP;
D.ESP
E.略
F.略
G.略
[判断题]扣板(弹片)扣件扭矩应保持80~140 N•m。
A.正确
B.错误
[单选题]37.关于行政复议申请期限的规定,下列哪一说法是正确的?( )
A.A.当场作出具体行政行为的,自具体行政行为作出之日起计算
B.B.载明具体行政行为的法律文书直接送达的,自受送达人知道之日起计算
C.C.载明具体行政行为的法律文书邮寄送达的,自邮件寄出之日起计算
D.D.具体行政行为依法通过公告形式告知受送达人的,自公告之日起计算
[判断题]消防联动控制系统不能通过传输设备将火灾报警控制器发出的火灾报警信号及其它有关信息传输到建筑消防设施及消防安全管理远程监控系统。
A.正确
B.错误
[判断题]气割速度太快时,会使钢板切口两侧棱角熔化。( )
[判断题]( )安全系数的确定,是合理解决安全与经济矛盾的关键。
A.正确
B.错误
[单项选择]诊断标准不包括以下哪种()
A. 国家标准
B. 行业标准
C. 地方标准
D. 自定标准
[单选题]高压设备发生接地时,室外不准接近故障点( )米以内。
A.2
B.4
C.6
D.8
[单选题]代谢性酸中毒常见于( )
A. 长期静脉滴注葡萄糖
B. 幽门梗阻
C. 急性阑尾炎
D. 食管梗阻
E. 弥漫性腹膜炎
[单选题]Text 3 The relationship between formal education and economic growth in poor countries is widely misunderstood by economists and politicians alike.Progress in both area is undoubtedly necessary for the social,political and intellectual development of these and all other societies;however,the conventional view that education should be one of the very highest priorities for promoting rapid economic development in poor countries is wrong.We are fortunate that is it,because building new educational systems there and putting enough people through them to improve economic performance would require two or three generations.The findings of a research institution have consistently shown that workers in all countries can be trained on the job to achieve radically higher productivity and,as a result,radically higher standards of living.Ironically,the first evidence for this idea appeared in the United States.Not long ago,with the country entering a recessing and Japan at its pre-bubble peak.The U.S.workforce was derided as poorly educated and one of the primary cause of the poor U.S.economic performance.Japan was,and remains,the global leader in automotive-assembly productivity.Yet the research revealed that the U.S.factories of Honda,Nissan,and Toyota achieved about 95 percent of the productivity of their Japanese counterparts--a result of the training that U.S.workers received on the job.More recently,while examining housing construction,the researchers discovered that illiterate,non-English-speaking Mexican workers in Houston,Texas,consistently met best-practice labor productivity standards despite the complexity of the building industry's work.What is the real relationship between education and economic development?We have to suspect that continuing economic growth promotes the development of education even when governments don't force it.After all,that's how education got started.When our ancestors were hunters and gatherers 10,000 years ago,they didn't have time to wonder much about anything besides finding food.Only when humanity began to get its food in a more productive way was there time for other things.As education improved,humanity's productivity potential increased as well.When the competitive environment pushed our ancestors to achieve that potential,they could in turn afford more education.This increasingly high level of education is probably a necessary,but not a sufficient,condition for the complex political systems required by advanced economic performance.Thus poor countries might not be able to escape their poverty traps without political changes that may be possible only with broader formal education.A lack of formal education,however,doesn't constrain the ability of the developing world's workforce to substantially improve productivity for the foreseeable future.On the contrary,constraints on improving productivity explain why education isn't developing more quickly there than it is.34.The author quotes the example of our ancestors to show that education emerged__________.
A.when people had enough time
B.prior to better ways of finding food
C.when people on longer went hung
D.as a result of pressure on government
[判断题]REV堂食期间测速,总时长在3分钟以上得分为5分.
A.正确
B.错误
[填空题]成套接地线应由透明护套的()和()组成,接地线截面积不应小于()mm2,并应满足装设地点短路电流的要求。 | 3.0分)
[单选题]四书包括:《论语》、《大学》、《孟子》、( )。
A.、《礼记》
B.《中庸》
C.《周易》
D.《春秋》
[填空题]严禁用湿手触摸开关、插座、灯座及用湿布擦拭电气装置,严禁在()私拉乱接电线。
[判断题]根据《生产安全事故报告和调查处理条例》,在工程建设过程中造成100人以上重伤(包括急性工业中毒)的事故属于特别重大事故。
[判断题]为节约施工成本,建筑施工中产生的泥浆水可以直接排入城市排水设施和河流。 ( )
A.正确
B.错误
[简答题] 《铁路电务安全规则》规定上道作业必须设置专人防护,所有上道人员必须按规定佩戴防护标识,使用防护用品。
[简答题]OW-E玻璃在夏季、冬季分别是如何起作用的?
[单选题]逻辑判断。每题给出一段陈述,这段陈述被假设是正确的,不容置疑的。要求你根据这段陈述.选择一个答案。注意:正确的答案应与所给的陈述相符合.不需要任何附加说明即可以从陈述中直接推出。
生活应该是一系列冒险.它很有乐趣,偶尔让人感到兴奋,有时却好像是通向不可预知的未来的痛苦旅行。当你试图以一种创造性的方式生活时,即使你身处沙漠中,也会遇到灵感之井、妙想之泉,它们却不是能事先拥有的。
下面哪一个选项所强调的意思与题干的主旨相同?()
A.英国哲学家休谟说.习惯是人生的伟大指南
B.美国哲学家怀特海说。观念的改变损失最小。成就最大
C.法国化学家巴斯德说.机遇只偏爱有准备的头脑
D.美国诗人弗罗斯特说.假如我知道写诗的结果。我就不会开始写诗。
[单选题]机械中凡不影响主动件和输出件运动传递关系的个别构件的独立运动自由度,则称为
()。
A.复合绞链
B.局布自由度
C.虚约束
[判断题]危险化学品使用单位可以安排未经上岗前职业健康检查的从业人员从事接触职业危害的作业,然后根据具体情况再安排职业健康检查。( )
A.正确
B.错误
[单项选择]领导是一种过程,也是一种艺术,它是一项( )非常强的艺术。
A. 目的性
B. 实践性
C. 理论性
D. 艺术性
[判断题]多相流体充满岩石孔隙是测定岩石的绝对渗透率条件之一。
A.正确
B.错误
[多项选择]吸引力较大的出版物细分市场包括()。
A. 同类出版物品种密集的市场
B. 缺乏替代品的市场
C. 作者队伍强大的市场
D. 购买力比较强的市场
E. 发行商较多的市场