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[简答题]禁止在带有液压、气压或带电的设备上焊接。在特殊情况下需在带压和带电的设备上进行焊接时,应采取安全措施,并经本单位()批准。对承重构架进行焊接,应经过有关技术部门的许可。

热门试题:

[单项选择]
For the (26) month, mysterious falls of large chunks of ice (冰雹) (27) rained down on Spain and Italy. Juana Sanchez, a 70-year-old woman in Almeria, southern Spain, was knocked(28) when she was struck on the shoulder by a falling ice chunk (29) she walked in a street (30) her home. On January 12, just about 200 miles away in Seville, a man narrowly (31) serious injury when a 9-pound ball of ice (32) into his car. (33) the evening of January 27 priests at the Salesian monastery in L’Aquila, Italy were startled by a loud crash. (34) the noise, they discovered a large chunk of ice on their yard, (35) intact. Upon examination, the block of ice (36) in at 2 kilograms and no source (37) . On the same day, about 100 miles northeast in Ancona, Italy, the local officials were called to investigate the report of a man (38) was struck (39) the head by all kilogram chunk of ice that apparently fell from the sky. Spain and Italy aren’t the only European (40) getting attacked by huge ice blocks in January. On January 2 in Surrey, England (southwest of London), an East Indian man was walking through Newton Athletic Park when he (41) a strange whistling sound overhead. Seconds (42) ,a large hunk of ice fell out of the clear blue sky and pounded into the soft ground, shattering over a 50-foot-wide area. The ice dug a hole of a foot deep and a foot in diameter. Even the shattered remains of the mystery ice were as large as tennis balls and were described as opaque (43) no unusual color or smell. Although eyewitnesses to the phenomenon report that they did not see anything in the sky that could account (44) the ice, scientists had to come up with a rationalization. Professor Jesus Martinez Frias, the geologist investigating the ice falls in Spain, told BBC News that the ice pieces had probably been (45) through sudden temperature drops in the stratosphere. This was the most likely explanation, he said, for the "very unusual" phenomenon.

A. /
B. for
C. with
D. on
[单项选择]在教育内容上提倡“实学”,在教学方法上强调“习行”、自号“习斋”的教育家是()。
A. 颜元
B. 王夫之
C. 黄宗羲
D. 顾炎武
[多选题]各部门定期对属地内的消防设施检查,(     )不少于一次,消防重点部位及车站检查(     )不少于一次
A.每周
B.每日
C.每月
D.每半月
[单项选择]下列引起右室压力负荷过重的是()。
A. 三尖瓣关闭不全
B. 肺动脉瓣关闭不全
C. 静脉回流量增高
D. 肺动脉高压
E. 严重贫血
[简答题]简述安全技术的内容。
[单项选择]People are moving to cities in droves. In 1950, two-thirds of the world’s population lived in the countryside. New York was then the only settlement with more than 10 million people. Today there are 20 such megacities, and more are on their way.
Most of these megacities are in developing countries that are struggling to cope with both the speed and the scale of human migration. Estimates of the future spread of urbanization are based on the observation that in Europe, and in North and South America, the urban share of the total population has stabilized at 75%-85%. If the rest of the world follows this path it is expected that in the next decade an extra 100 million people will join the cities of Africa, and 340 million the cities of Asia: the equivalent of a new Bangkok every two months. By 2030 nearly two-thirds of the word’s population will be urban.
In the long run, that is good news. If countries now industrializing follow the pattern of those that have already done so,
A. the side effects of urbanization.
B. megacities in developing countries.
C. the causes behind immigration to cities.
D. ways to slow down the pace of immigration.
[单选题]()变压器一、二次绕组之间既有磁的联系,又有电的联系。
A. 普通
B. 自藕
C. 大型
D. 小型
[填空题]在我国民航体系中,9小时天气预报的有效起止时间规定为2106、0009、0312、0615、0918、1221、()、()。
[单选题]选择混凝土细集料时,应使其( )。
A.空隙率大
B.细颗粒较多
C.总表面积小
D.质地疏松
[多选题]远程集中授权中心岗位配置应包含普通授权岗( )、( )、( )、( )。
A.一级授权员
B.二级授权员
C.质检岗
D.管理岗
[填空题]( )是曲率自角膜顶部向周边变化的速率。
[单选题]冻伤急救时,应将伤员身上潮湿的衣服剪去后用干燥柔软的衣服覆盖,并立即烤火或搓雪。
A.正确
B.错误
[多选题]下列哪些财产抵押应当办理抵押物登记()。
A.车辆
B.城市房地产
C.企业的设备
D.土地使用权
E.树木
[单项选择]商品陈列图是由采购部根据商店工程蓝图的货架设置以及()而具体制定的商品货架陈列标准。
A. 商品种类
B. 商品数量
C. 商品组合
D. 以上答案都正确
[判断题]正压式消防氧气呼吸器气瓶压力为18MPa至20MPa
A.正确
B.错误
[单选题]在封堵炉眼时,封堵炉眼器在未喷出渣子的情况下,下列正确的操作方法是
A.机械手将其放回出炉人员进行疏通
B.出炉人员进行用钢钎敲击出料管
C.在机械手未归零情况下可随机敲打
[判断题]所有电气设备的金属外壳均应有良好的接地装置。使用中不准将接地装置拆除,但可对其进行工作。
A.正确
B.错误
[判断题]语音识别是人工智能领域的一个重要分支,是一项通过处理分析语音信号来识别说话人意图的技术。
A.正确
B.错误
[单选题]关于小叶性肺炎描述正确的是
A.病灶融合多发展为肺肉质变
B.可由多种病毒引起
C.支气管旁淋巴结无急性炎反应
D.病变多为化脓性炎
E.常可导致大叶性肺炎
[判断题]低温对断路器的操作机构有一定影响,会使断路器的机械特性发生变化,还会使瓷套和金属法兰的粘接部分产生应力。
A.正确
B.错误
[判断题]消防工作主要是进行消防监督、火灾预防和扑救,审核建设工程的消防设施,查处火灾事故等工作。( )
[判断题]二级化学防护服也适用于灭火以及处置涉及放射性物品、液化气体、低温液体危险物品和爆炸性气体的事故。( )
A.正确
B.错误
[多选题]生产经营单位应当具备(  )规定的安全生产条件;不具备安全生产条件的,不得从事生产经营活动.
A. 《安全生产法》
B. 有关法律和行政法规
C. 国家标准
D. 行业标准
[判断题]根据《海牙公约》的规定,当发生劫持航空器行为时,缔约各国应对旅客和机组继续其旅行尽速提供方便。
A.正确
B.错误
[单选题]钢轨顶面上有长大于50mm,深大于10mm的掉块时,应判为( )
A.重伤
B.轻伤
C.折断
D.核伤
[单项选择]呕吐伴上腹部节律性、周期性痛可见于()。
A. 肠钩虫病
B. 肝硬化伴食管胃底静脉曲张
C. 消化性溃疡
D. 流行性出血热
E. 遗传性毛细血管扩张症
[多选题]消防车按功能可分为()
A.灭火消防车
B.举高消防车
C.专勤消防车
D.后援消防车
E.医疗救护车
[单选题]1.35 公安机关交通管理部门对被扣留的车辆应当妥善保管,不得使用。逾期不来接受处理,并且经公告_____仍不来接受处理的,对扣留的车辆依法处理。
A.1个月
B.3个月
C.6个月
D.12个月
[判断题]服务设备是出版发行单位向公众推介出版物,引导消费者了解出版物,进而引导消费者产生购买行为的设施。
[单项选择]"Do you mind my taking this seat " "______".
[单选题]  - 100.郁证用甘麦大枣汤治疗者,应属 A.气郁化火
A.气滞痰郁
B.忧郁伤神
C.肝气郁结
D.阴虚火旺
[单项选择]已知市场组合的期望收益率为15%,无风险收益率为5%,某项金融资产的B值为0.5,则该项金融资产的期望收益率为( )。
A. 22.5%
B. 20%
C. 10%
D. 8.5%
[多项选择]工程项目开工前,总监理工程师应审查承包单位现场项日管理机构的( ),对确能保证工程项目施工质量的应予以确认。
A. 目标控制体系
B. 组织管理体系
C. 技术管理体系
D. 质量管理体系
E. 信息管理体系
[单项选择]VOCs是()英文缩写,通常是指在常温下容易挥发的有机物,被广泛应用于鞋类、玩具、油漆和油墨、化妆品、室内和汽车装饰材料等领域。从环保意义上说,这些有机物挥发到大气中能够参加大气光化学反应,对环境构成危害。
A. 二甲苯
B. 挥发有机物
C. 三氯乙烷
D. 苯乙烯
[多项选择]海关在对进出境人员携带现金和无记名有价证券实施监管的过程中,发现涉嫌恐怖主义融资的,该如何处理?()
A. 应当立即通报中国人民武装警察部队
B. 应当立即通报有管辖权的公安机关
C. 应当立即通报国务院反洗钱行政主管部门
D. 应当立即通报民兵
[单选题]判断题:道口是指在铁路线路上铺面宽度在2.5m及以上,直接与道路贯通的平面交叉。
A.正确
B.错误
[单项选择]我国引起食管癌的病因哪项是错误的()
A. 硝胺类化合物和真菌毒素
B. 饮食刺激与食管慢性刺激
C. 营养因素
D. 食管下括约肌压降低
E. 遗传因素
[判断题]无线个域网就是在个人工作地方把属于个人使用的电子设备用无线技术连接起来,整个网络的范围大约在 100m 左右。
A.正确
B.错误
[单项选择]下列哪项属于甲类传染病()。
A. 狂犬病
B. 麻疹
C. 肺结核
D. 麻风病
E. 霍乱

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