热门试题:
[填空题]铆钉的铆合头应伸出铆钉长度的( ) 倍,才可铆半圆头形。
[判断题]2004年诺贝尔奖获得者基德兰德和普雷斯科特认为，如果经济政策的制定者缺乏提前做出某种特定决策能力的话，那么他们通常就无法在稍后的时间里执行最理想的政策。
[判断题]阿奎那根据他对法的基本认识，把法分为永恒法、自然法、人法和身法四类
[单项选择]围生期包括胎儿期一部分和婴儿期一部分，国内普遍采用的定义是（）
A. 胎龄27周至出生时
B. 胎龄28周至生后7天
C. 胎龄30周至生后2周
D. 胎龄36周至生后4周
E. 胎龄38周至生后1个月
[单选题]下列不是山地事故事件特点的是( )。
A.救援行动危险性大
B.施救环境复杂
C.条件受限,救援时间长。
D.持续时间长
[单项选择]The author's purpose of writing this passage is to______.
A. argue for teaching bright and not-so-bright students in the same class
B. recommend pair work and group work for classroom activities
C. offer advice on the proper use of the library
D. emphasize the importance of formal classroom teaching
[多项选择]可能导致离心泵轴承箱温度高原因有（）
A. 润滑油位高
B. 冷却水量少
C. 叶轮磨损
D. 冷却水量中断
[单选题]液压油( ),常常是液压系统发生故障的主要原因。(易)
A.温度过高
B.粘度太小
C.粘度太大
D.受到污染
[多选题]火灾的危害包括（）和（）两方面。
A.人员死亡
B.人员伤亡
C.财产损失
D.设备损失
[多选题]药物不良反应包括：
A. 副反应
B.毒性反应
C.后遗效应
D.停药反应
[单项选择]由劳资双方共同签订的，禁止员工以个人名义参加工会及其活动的书面协议称为（）
A. “禁止令”
B. “共谋令”
C. “黄狗协议”
D. “蓝鹰计划”
[判断题]扭力管浮筒液位计浮子脱落，则液位计显示最小
A.正确
B.错误
[单选题]在带电杆塔上进行测量、防腐、巡视检查、紧杆塔螺栓、清除杆塔上异物等工作，风力应小于（ ）级。
A.6
B.5
C.4
D.3
[单项选择]It seems obvious that you don"t give away your product for free but this is exactly what indie rock group The Crimea did earlier this year. The band"s reasoning goes like this: more people will download the free album than would pay for it. Therefore more people will heat. The Crimea"s music. These people will then pay money for concerts by the band and perhaps buy a T-shirt or other merchandise. If the band play regular concerts to crowds of 200 or 300 people they can make more money than they would from sales of a CD. There will always be some people who want something they can hold in their hands so they will release the CD into the shops too—but making money through sales of their music isn"t the top priority.
The story illustrates the creative thinking going on in the music business in response to dramatic changes over the last few years in the way that people buy music. Sales of music digitally—to computer, phones and MP3 players rose to $2 billion in 2006—an increase of almost 100 percent on the previous year—yet overall record company sales are down. People are simply not buying CDs in record shops in anything like the numbers they used to.
This trend looks set to continue, so the big question for the music industry is whether they can successfully manage the move to being primarily a digital industry without profits falling to unacceptable levels.
There are both positive and negative signs. On the plus side, more and more people are buying music on mobile phones, which allows people to make impulse purchases—they can buy a song as soon as they hear it. Research by the UK mobile operator 3 suggested that 75 percent of 16 to 24-year-olds wanted to buy a track they liked as soon as they heard it. With so much competition for people"s disposable income, a product that you can sell immediately is a big advantage.
The bad news for record companies, however, is the amount of music that is downloaded illegally. Piracy—usually in the form of cheaply copied CD—has long been an issue for the music business but the Internet means music can be copied and distributed freely through file-sharing sites on a large scale than ever before.
It is this situation that leads bands to start giving away their music for free and promises to make the next few years a very interesting time in the music business.What is unusual about the Crimea"s business plan
A. Their business was given away free on the Internet.
B. They gave CDs away free in shops.
C. They played free concerts.
D. They charged more for their CDs.
[单选题]操作系统中的进程与处理器管理的主要功能是（ ）。
A.实现程序的安装、卸载
B.提高主存储器的利用率
C.使计算机系统中的软/硬件资源得以充分利用
D.优化外部设备的运行环境
[多选题]用于在建工程的( )及防腐等材料的燃烧性能等级,应符合设计要求。
A.保温
B.防水
C.装饰
D.电线电缆
[单选题]从事线路固定的机场、高铁快线以及短途驳载且单程运营里程在( )公里以内的客运车辆,在确保安全的前提下,不受凌晨2时至5时通行限制。
A.80
B. 100
C.120
D. 150
[判断题]漆能耐碱性溶液腐蚀。（ 通密度的单位名称）
A.正确
B.错误
[单项选择]某工程机械厂拟改组为有限责任公司，名称为“某某市中天工程有限责任公司”，为此，该企业应向工商行政管理机关办理( )。
A. 企业名称变更登记
B. 企业设立登记
C. 公司设立登记
D. 公司变更登记
[不定项选择题]我国企业国内发行债券所筹集的资金可用于( ）。
A.固定资产投资
B.房地产买卖
C.股票交易
D.期货交易
[单选题]8月2日,我国自行设计研制、全面拥有自主知识产权的( )——巴铁1号试验车,在河北秦皇岛北戴河区开始启动综合试验,包括刹车距离、摩擦系数、耗电等,检验车和路、人和车的关系。
A. 空中巴士
B. 空中客车
C.空中快车
D.空中列车
[多选题]《担保法》规定的法定担保范围包括（ ）。
A.鉴定评估费
B.执行费
C.损害赔偿金
D.利息
E.违约金
[判断题]政府专职消防员执勤队员绩效考核（上级评价）副班长由指导员、站长、副站长、站长助理和班长评分（权重干部为25%，消防员为15%）。（）
A.正确
B.错误
[判断题]赋值类车票须由当班客运值班员与值班站长共同清点加封。
A.正确
B.错误
[单选题]施工地点与防护人员间瞭望条件不良又无电话联系时,应增设( )。
A.驻站防护
B.远端防护
C.现场防护
D.中间防护人员
[单选题]麻疹最常见的并发症是( )
A.结核病恶化
B.心肌炎
C.脑炎和亚急性硬化性全脑炎
D.营养不良
E.支气管肺炎
[单选题]SF₆断路器调整时,相间中心距离误差不大于( )。
A.5mm
B.10mm
C.12mm
D.20mm
[多选题]
The show interfaces serial 0./0. command resulted in the output shown in the graphic. What are possible
Causes for this interface status? (Choose three.)
A. The interface is shut down.
B. No keepalive messages are received.
C. The clockrate is not set.
D. No loopback address is set.
E. No cable is attached to the interface.
F. There is a mismatch in the encapsulation type.
[判断题]依据《国网陕西省电力有限公司关于印发落实“四个管住”工作实施方案的通知》，“四个管住”即“管住计划、管住队伍、管住人员、管住现场”
A.正确
B.错误
[简答题]HXD3电力机车辅助电动机供电电路由哪些部件组成？
[单选题] 直流电机定子装设换向极是为了( )。
A. 改善换向
B. 减小气息磁场
C. 将交流电机换成直流电机
D. 增加气息磁场
[单选题]两人抓捕上铐中,两人站立的位置是( )。
A.一人在前、一人在后
B.两人都在正前方
C.两人分别在两侧侧后方
D.两人都在正后方
[填空题]电气设备的定期检修分为（ ）、（ ）和（ ）3种修程。小修、中修、大修
[单选题]CRH380B型动车组每个牵引单元由一台、两台和个牵引电机组成。
A.变压器变流器4
B.变流器变压器8
C.变流器变压器4
D.变压器变流器8
[单项选择]哈尔滨地铁一号线转向架空气弹簧正常工作高度为（）
A. 175MM
B. 180MM
C. 195MM
D. 200MM
[单项选择]肠外营养液中，影响微量元素硒降解的主要因素是（）
A. pH
B. 光照方向
C. 气候环境
D. 放置时间
E. 微量元素含量
[判断题]社会保险基金在保证安全的前提下,按照国务院规定投资运营实现保值增值。( )
A.正确
B.错误
