热门试题:
[简答题]
假设某数据库中有表SC(S#,C#,SCORE),表C(C#,CNAME,TNAME)和表SC_C(C#,
CNAME,AVG_GRADE),其中SC表中各属性分别表示为学号,课程号,以及对应的分数;要求把SC表中的每门课程的平均成绩插到表SC_C中,完成下列的SQL语句。
INSERT INTO SC C(C#,CNAME,AVG GRADE)
SELECT C.C#,CNAME,
(8)
FROM SC,C
(9)
(10)
[单项选择]扁平足的学生平时应进行()的医疗体育,以利于康复。
A. 抗阻运动
B. 助力运动
C. 矫正运动
D. 协调运动
[单选题]总量预测准确率低于65%的,会触发( )预警。
A.红色
B.黄色
C.橙色
D.蓝色
[单项选择]请根据下面短文回答第61~65题:
Very few people came to eat at the Happy Restaurant and its boss did not know what to do. The food in the restaurant was cheap and good, but nobody seemed to want to eat there.
Then he did something. It changed all that, and in a few weeks his restaurant was always full of men with their lady friends, ff a gentleman came in with a lady, a smiling waiter would give each of them a beautiful menu(菜单). The two menus looked exactly the same on the outside, but there was an important difference inside. The gentleman’s menu gave the correct price(价格) for each dish and each bottle of wine, while the lady’s menu had a much higher price. So when the man ordered(点菜) dish after dish, the lady thought he was much more generous( 慷慨的 ) than he really was.
Different menus were shown to men and women because the boss knew that
A. men are more generous than women
B. women like their men friends to be generous
C. men like their women friends to be generous
[多选题]本规范适用于建筑施工中现浇混凝土工程模板体系的 和拆除。(《建筑施工模板安全技术规范》JGJ162-2008,1.0.2,P1)
A. 施工
B. 设计
C. 搭设
D. 制作
E. 安装
[单选题]3.168. 第168题
线损是指电能从发电厂到用户的输送过程中不可避免的发生的()损失
A.电压
B.电流
C.功率和电能
D.电动势
[多选题]应投切的相关直流电源(空气开关、熔断器、连接片)、低压及二次回路:填写具体的()、“远方/就地”选择开关、低压及二次回路等设备名称和状态
A.空气开关
B.熔断器
C.连接片
D.联锁开关
[判断题]干式除尘设备除了省水外没有其它优点。()
[多项选择]消渴病的辨证要点有哪些
A. 辨寒热
B. 辨病位
C. 辨虚实
D. 辨标本
E. 辨本症与并发症
[单项选择]You can ask______ if you want to have your clothes washed.
A. the front desk
B. the room staff
C. the hotel bar
[判断题]1施工现场停、送电的操作顺序是:送电时,总配电箱-分配电箱-开关箱;停电时,开关箱-配电箱-总配电箱。 ( )
A.正确
B.错误
[判断题] 井队用电焊机的一、二次接线长度均不宜超过 20m。
A.正确
B.错误
[简答题]岩屑颜色的描述一律以岩屑湿样的色调为准。
[多项选择]在Word中,在打印机的属性界面中,可对()进行设置。
A. 打印质量
B. 是否双面打印
C. 打印缩放
D. 打印墨盒
E. 打印纸尺寸
[判断题]SS4B型电力机车磨耗型踏面为JN2型( )
A.正确
B.错误
[多选题] 事故应急救援结束应满足的条件是( )
A.伤亡人员救护组确认全部事故伤亡人员已得到妥善安置
B.确认事故影响范围及现场秩序已完全得到控制,并提出恢复措施
C.确认铁路交通事故现场清理完毕,事故现场取证完毕
D.确认道路、铁路交通恢复正常秩序。
[判断题]《物权法》第二十七条规定,动产物权转让时,双方有约定由出让人继续占有该动产的,物权自该约定生效时发生效力。( )
A.正确
B.错误
[多选题]关于建筑面积计算,说法正确的有( )。
A.露天游泳池按设计图示外围水 平投影面积的1/2计算
B.建筑物的管道井应并入自然层计算
C.有永久顶盖的室外楼梯, 按楼梯水平投影面积计算
D.建筑物主体结构内的阳台按其结构外围水平面积计算全面积
E.宽度超过2.10m的雨篷按结构板的水平投影面积计算建筑面积
[填空题]( )数据包括收费公路经营管理单位信息、收费公路信息、收费路段信息、ETC门架系统信息、收费站信息、收费广场信息、收费车道信息等。
[多项选择](2009年多项选择第58题)甲公司与乙公司签订了建筑工程承包合同,由乙公司为甲公司建造贸易大楼。合同签订后,乙公司自行将该工程的非主体结构部分的施工任务转包给丙公司,丙公司遂进场施工。甲公司支付了部分工程款,乙公司将其中部分支付给丙公司。后因甲公司提供的图纸存在设计问题,丙公司和乙公司相继被迫停工。甲公司诉至法院。经查,丙公司具备相应的建筑资质。下列表述正确的是()。
A. 乙公司部分施工任务转包的行为构成违约
B. 乙公司应对丙公司的施工向甲公司承担连带责任
C. 乙公司应向甲公司承担停工的违约责任
D. 乙公司有权向甲公司主张赔偿停工损失
[单选题](第十条)消防员在特殊环境作战时,应采取针对性防护措施。开展金属、混凝土、玻璃等物质破拆时,应佩戴护目镜及具备( )功能的手套等防护装备。( )
A.防危化品
B.防割
C.防火
D.防静电
[判断题]考评人员实行聘任制。( )
A.正确
B.错误
[判断题](467819)( )原子吸收中吸光度A=KC,式中A为吸光度,K为原子吸收系数,C为被测元素在试样中的浓 度。(1.0分)
A.正确
B.错误
[多选题]生产经营单位的从业人员有权( )。
A.A.了解其作业场所和工作岗位存在的危险因素、防范措施及事故应急措施
B.B.对本单位的安全生产工作提出建议
C.C.对本单位安全生产工作中存在的问题提出批评、检举、控告
D.D.拒绝违章指挥和强令冒险作业
[判断题]在CRT数值输入过程中,尽量用快捷键。
A.正确
B.错误
[单选题]煤矿生产能力核定以具有煤炭()许可证的矿(井)为单位。
A.生产
B.采矿
C.安全
[单项选择]旅游者离开饭店前,地陪应在商定的时间与______一起检查行李,共同清点,确认行李件数,并填好行李交运卡。
A. 领队、全陪和行李员
B. 行李员
C. 全陪和行李员
D. 领队和行李员
[判断题]插接的环绳或绳套,其插接长度应不小于钢丝绳的15倍,且不准小于200mm。
A.正确
B.错误
[判断题]根据《输变电工程安全质量过程控制数码照片管理工作要求》,采集的照片应保存为JPEG格式。( )
A.正确
B.错误
[单选题]远期合约的主要作用是()。
A.转嫁税负
B.增加利润
C.增加交易量
D.转嫁风险
[单选题]56.(93937)确定合理的开发( )是油田开发原则的具体规定内容。(1.0分)
A.A、试验
B.B、步骤
C.C、试采
D.D、钻探
[单选题]请阅读Passage2。完成第小题。
Passage 2
The World Cup has become the most streamed live sporting event the US has ever seen, as Americans tuned in to this year's tournament on their smart phones, tablets and computers in record numbers.
A surge of US interest in football this year has also led to record television audiences for broadcasts on ESPN and Uni-vision, the Spanish-language network. The US team's loss on Tuesday to Belgium averaged a 9.6 overnight rating on ESPN, according to Nielsen, the highest for any World Cup match the network has broadcast.
But a 50 per cent surge in live streaming compared with the previous record, set during the 2012 London Olympics, shows that the sport's appeal has grown particularly among younger, more digital, fans. Young people are energetic and fond of sporting, The World Cup is a great tournament of football, so they must be attractive. On the other hand, now the electronic devices are developing rapidly, more people have smart phones, tablets and computers. Then to watch the World Cup becomes much easier.
US viewers have so far watched nearly 30m hours of streaming video on ESPN's WoAd Cup website and apps, the network said, beating the previous record of 20.4m viewing hours during NBC's 2012 Olympics coverage. Univision has streamed 1.Sm hours since the start of the tournament.
Last week's USA vs. Germany match drew a record 1.Tm streaming viewers to ESPN at its peak, with streaming on Univision peaking at 747,000. Tuesday's USA vs. Belgium match peaked at 1.5m streams on ESPN and 680,000 on Univision.
In comparison, live streaming of January's Super Bowl peaked at l.lm.
While the elimination of the US team leaves a question mark over US fans' interest in the rest of the tournament, Univision's audience for non-US games has been robust.
Univision said its broadcast on Sunday of the Mexico vs. Netherlands match was the most-watched programme, of any kind, in US Spanish-language TV history, with an average 10.4m viewers. Its audiences have been the largest in cities with large Spanish-speaking populations, such as Miami, Los Angeles, Houston and New York.
With most matches being shown during business hours, Americans are increasingly turning to their devices, such as smart phones, tablets and computers to keep up with the tournament. Fifa,football's governing body, said US fans make up 20 percent of its global digital audience and are spending more time on its website and apps than fans in Brazil, Germany, England and France combined.
With different kind of electronic devices to watch World Cup, the number of audience becomes larger. The flood of demand caused some problems with ESPN's feeds, leading frustrated viewers to take to Twitter to complain about the match cutting out. That had also happened during the USA vs. Germany game.
Which of the following statements is Not true?
查看材料
A.More Americans choose to watch the World Cup by smart phones, tablets and computers than before.
B.After the elimination of the US team, Americans still focus on non-US games.
C.Most matches of the World Cup are shown during business hours.
D.The large demand of the World Cup has a negative effect on ESPN's feeds.
[单选题]闪点低,表示在( ),因此该液体容易着火燃烧
A.很低的温度下就能闪爆
B.很高的温度下就能闪燃
C.很低的温度下就能闪燃
D.很高的温度下就能闪爆
[单项选择]某上市公司拟发行公司债券。根据证券法律制度的有关规定,下列各项中,表述不正确的是()。
A. 发行公司债券,可以申请一次核准,分期发行
B. 自中国证监会核准发行之日起,公司应在6个月内完成首期发行,剩余数量应当在24个月内发行完毕
C. 首期发行数量应当不少于总发行数量的40%,剩余各期发行的数量由公司自行确定
D. 超过核准文件限定的时效未发行的,须重新经中国证监会核准后方可发行
[单选题]临终患者的疼痛控制目前采用三阶梯方法。属于第一阶梯止痛的药物是
A.布桂嗪
B.可待因
C.阿司匹林
D.吗啡
E.哌替啶
[单项选择]导致原发性心肌损害的疾病是()
A. 心肌炎
B. 主动脉瓣狭窄
C. 主动脉瓣关闭不全
D. 缩窄性心包炎
E. 甲状腺功能亢进症
[单项选择]一个教师可讲授多门课程,一门课程可由多个教师讲授。则实体教师和课程间的联系是
A. 1:1联系
B. 1:m联系
C. m:1联系
D. m:n联系