热门试题:
[判断题]空心阴极灯的电源为高压电源。
A.正确
B.错误
[单项选择]"About 5 per cent of insured weddings there never make it to the altar." The sentence implies 5 per cent of insured couples _______.
[单项选择]
·You will hear a radio interview with a representative of the New Zealand
Kiwi Fruit Marketing Board (the KMB), about the sale and export of kiwi
fruit.
·For each question 23-30, mark one letter (A, B or C) for the correct
answer.
·After you have listened once, replay the recording.
What percentage of New Zealand’s total exports are kiwi fruit
[单项选择]绞磨在作业前应检查和试车,确认()、运行正常、制动可靠后方可使用。
A. 安置稳固
B. 安装正确
C. 安置良好
[多选题]大华摄像机的分辨率可支持( )。
A. 1920*1080
B.1280*720
C.D1
[单项选择]移动宽带传输网中高架段AP布防间隔为()。
A. 150米
B. 175米
C. 200米
D. 250米
[单选题]我国实行适度宽松的货币政策,降低存款利率不利于()。
A.增加储蓄存款
B.刺激消费
C.扩大内需
D.拉动经济增长
[多选题]测量不确定度的来源包括( )。
A.对被测量的定义不完整
B.对模拟仪器读数的人为偏差
C.测量仪器的分辨力不够
D.测量设备不理想使测量存在误差
E.取样的代表性不够
[单选题]有关电离辐射测量的干扰影响,下列说法正确的是( )。
A.β 射线的测量要注意 γ 射线的影响
B.β 射线的测量要注意 α 射线的影响
C.β 射线的测量要注意中子的影响
D.β 射线的测量要注意质子的影响
[单项选择]
{{B}}TEXT C{{/B}}
Migration is usually
defined as "permanent or semipermanent change of residence". This broad
definition, of course, would include a move across the street or across a city.
Our concern is with movement between nations, not with internal migration within
nations, although such movements often exceed international movements in volume.
Today, the motives of people ’who move short distances are very similar to those
of international migrants.
Students of human migration speak of
"push" and "pull" factors, which influence, an individual’s decision to move
from one place to another. Push factors are associated with the place of origin.
A push factor can be as simple and mild a matter as difficulty in finding a
suitable job, or as traumatic as war, or severe famine. Obviously, refugees who
leave their homes with guns pointed at their heads axe motivated almost entirely
by push factors ( although pull factors do infl
A. are all related to economic considerations.
B. are not as decisive as push factors.
C. include a range of considerations.
D. are more important than push factors.
[多选题]下面说法正确的是
A.配电站户外高压设备部分停电进行营销现场作业,应在工作地点四周装设围栏,其出入口要围至邻近道路旁边,并设有“从此进入!”和“在此工作”标示牌。
B.工作地点四周围栏上悬挂适当数量的“止步,高压危险!”标示牌,标示牌应朝向围栏里面。
C.若配电站户外高压设备大部分停电,只有个别地点保留有带电设备而其他设备无触及带电导体的可能时,可以在带电设备四周装设全封闭围栏,围栏上悬挂适当数量的“止步,高压危险!”标示牌,标示牌应朝向围栏外面。
D.高压开关柜内手车开关拉出后,隔离带电部位的挡板应可靠封闭,禁止开启,并设置“在此工作”标示牌。
[判断题]救援舟艇作业时,每艘舟艇通常配备救援人员 2 至 4 名。( )
A.正确
B.错误
[单选题]《铁路旅客运输规程》规定,没收危险品时,应向被没收人出具
( )。
A.书面证明
B.没收危险品决定书
C.客运记录
D.收据
[判断题]电子天平每年定期效验,贴上验证码。( )
A.正确
B.错误
[多选题]每次启动设备前,检查确认设备工作区域无(),危险区域无人员靠近。
A.遗留工夹具
B.螺钉
C.铁屑
[单项选择]
Dear World,
A boy starts school today. It’s going to be strange and new to him for a while. And I wish you would sort of treat him gently.
You see, up to now, he’s been king of the family. He’s been boss of the backyard. I have always been around to repair his wounds, and to soothe his feelings.
But now--things are going to be different.
This morning, he’s going to walk down the front steps, wave his hand and start on his great adventure that will probably include wars and tragedy and sorrow. To live his life in the world he has to live in will require faith and love and courage.
So, World, I wish you would sort of take him by his young hand and teach him the things he will have to know. Teach him--but gently, if you can. Teach him that for every scoundrel, there is a hero; that for every enemy there is a friend. Teach him the wonders of books. Give him quiet time to ponder the eternal mystery of birds in the sky, be
A. superman
B. movie
C. devil
D. play
[多选题]下列关于政府对市场的干预的说法中,正确的是( )。
A.为了支持某些产业的发展,政府会制定产品的最低价格
B.为了限制垄断,政府会制定产品的最高价
C.如果政府制定的支持价格高于市场均衡价格,会产生需求过剩
D.如果政府制定的限制价格低于市场均衡价格,会产生供给不足
E.政府对市场价格的管制会提高经济效率
[判断题]对运行中断路器一般要求,断路器金属外壳应有明显的接地标志。( )
A.正确
B.错误
[单选题]丘脑受损的感觉障碍特点:
A.对侧单肢感觉减退或缺失
B.对侧偏身(包括面部)感觉减退或缺失
C.对侧偏身(包括面部)感觉减退或缺失件有自发性疼痛
D.同侧偏身(包括面部)感党减退成缺失件感觉过度
E.交叉性感觉减退或缺失
[判断题]军用列车可不接入规定线路。( )
A.正确
B.错误
[判断题]普速铁路接触网作业遇有雷、雨、雪、雾天气时,不得进行更换火花间隙、检修支柱下部地线和避雷引下线等作业。
A.正确
B.错误
[简答题]密接式车钩缓冲装置的解钩操作过程是如何规定的?
[单项选择]和很多作品中写的妻子在丈夫死后不再结婚不同的是,最近畅销的这本小说中,年轻的丈夫在妻子死后,发誓不再结婚,并且实现了他的誓言。许多读这本小说的青年男女都被深深地感动了。 对上述话理解最正确的一项是( )
A. 最近畅销的这本小说中,年轻的丈夫在妻子死后,始终没有再婚
B. 最近畅销的这本小说中,年轻的妻子对丈夫的感情令人感动
C. 许多青年男女已经不被这本畅销小说中的感情感动了
D. 很多作品中写的都是丈夫在妻子死后不再结婚
[单项选择]食管癌的细胞学普查未获得公认的主要原因是()
A. 筛查方法有一定痛苦
B. 缺乏严格对照可降低死亡率的结果
C. 早期发现率较低
D. 经费开支较大
E. 假阳性较多
[判断题]钢丝绳的绳头固定在滚筒上时,严禁系在滚筒轴上。 ( )
A.正确
B.错误
[判断题]司机只要技术过关,就能操作场车。()(1分)
A.正确
B.错误
[单选题]货车特级列检和安全保证距离在()左右的一级列检对无调车作业中转列车始发前施行一次始发全部试验()
A.500km
B.600km
C.700km
D.800km
[单选题]呼吸机相关性肺炎指机械通气后多长时间 ( )
A. 24h
B. 12h
C. 48h
D. 72h
[单项选择]以下不是制定药品管理法的目的是
A. 保证药品质量
B. 增进药品疗效
C. 维护用药者经济利益
D. 保障人体用药安全
E. 维护人体健康
[填空题]计算机硬件故障通常是由元器件失效引起的,元器件可靠性分为3个阶段:①器件处于不稳定期,失效率较高;②器件进入正常工作期,失效率最低,基本保持常数;③元器件开始老化,失效率又重新提高(“浴盆模型”)。
因此计算机系统的可靠性指标也相当重要,计算机的可靠性用 (4) 来度量,可维护性用 (5) 来度量,可用性用 (6) 来衡量。
常见的三种计算机可靠性数学模型为:①串联系统可靠性模型;②并联系统可靠性模型;③ (7) 。
[判断题]重点跨省集团客户各成员企业授信流程执行单一法人客户授信流程,由总行审批。
A.正确
B.错误
[填空题]在正线、到发线以及与正线、到发线接轨而无平行进路或隔开设备的其他线路上调车,停留车辆原则上应停于距警冲标 ( ) m 以上,在其他线原则上应停于距警冲标 30m 以上。
[多选题]走中国特色社会主义政治发展道路,必须坚持( )有机统一。
A.党的领导
B.人民当家作主
C.依法治国
D.以德治国
[多选题]以下哪些属于单一风险因子?( )
A.汇率
B.利率
C.国债
D.企业债