热门试题:
[多选题]移位接触器应符合的要求( )接点应可靠断开,切断道岔表示。
A.当主挤切削折断时,
B.接点断开后,不经人工操作可以自动恢复
C.用2.5mm垫片试验或用备用挤切削带动道岔时,接点应断开
D.顶杆与触头间隙为1.5mm时,接点不应断开
[单项选择]恶性程度最高的乳腺癌是()
A. 髓样癌
B. 湿疹样癌
C. 硬癌
D. 黏液癌
E. 炎性癌
[单项选择]We were discussing the housing problem when a middle-aged man cut in and said, "There's no point in talking about impossibilities."
A. intersect
B. interject
C. penetrate
D. adulterate
[判断题]变电专责监护人需明确被监护人员和监护范围。
A.正确
B.错误
[单选题]在带电作业过程中,值班调控人员或运维人员发现相关设备故障,应立即通知()。
A.工作票签发人
B.工作许可人
C.工作监护人
D.工作负责人
E.略
F.略
[多项选择]农机安全监理机构应建立健全()机制,执行行政执法过错责任追究制度。
A. 外部监督
B. 内部监督
C. 责任制约
D. 岗位制约
[判断题] 列车发生紧急制动停车后,检查车辆技术状态,可继续运行时通知司机开车。
A.正确
B.错误
[判断题]锰是强化元素,在钢轨中加入锰元素提高钢的强度。
A.正确
B.错误
[单项选择]九味羌活汤和羌活胜湿汤均具有的作用是()
A. 祛风利水
B. 清热祛湿
C. 发汗解表
D. 祛湿止痛
E. 祛风胜湿
[判断题]只要实施了自动防止危害结果发生的行为,便应视为犯罪中止。
A.正确
B.错误
[单项选择]
In the North American colonies, red ware, a simple pottery fired at low temperatures, and stone ware, a strong, impervious grey pottery fired at high temperatures, were produced from two different native clays. These kind of pottery were produced to supplement imported European pottery. When the American Revolution (1775-1783) interrupted the flow of the superior European (5) ware, there was incentive for American potters to replace the imports with comparable domestic goods. Stoneware, which had been simple, utilitarian kitchenware, grew increasingly ornate throughout the nineteenth century, and in addition to the earlier scratched and drawn designs, three-dimensional molded relief decoration became popular. Representational motifs largely replaced the earlier abstract decorations. Birds and flowers were particularly evident, but other (10)subjects---lions, flags, and clipper ships---are found. Some figurines, mainly of dogs and lions,&n
A. By sponging on a glaze
B. By dusting on metallic powders
C. By brown-glazing
D. By firing at a high temperature
[单选题]以下哪个不是职业危害因素( )
A. 工作过度紧张
B. 劳动强度过大
C. 噪声
D. 炉前高温
E. 采矿粉尘
[判断题]热工元器件的安全标志牌和铭牌应正确、清晰、齐全。
A.正确
B.错误
[单选题]治疗突发性耳聋疾病药物是
A.尖吻
B.庆大霉素
C.丁卡因
D.申捷
[单选题]当客舱载客时进行燃油加注,安全带信号牌应保持____
A.接通
B.关断
C.自动
D.机长决定
[填空题]AIDS中文全称是();HIV中文全称是()。
[单项选择]在票据使用中,为了获得收款人的认可,往往需要经过银行承兑,以提升票据信用等级,进而增强变现能力和流通性,经过银行承兑的商业汇票称为( )。
A. 银行汇票
B. 银行本票
C. 银行承兑汇票
D. 商业承兑汇票
[单选题]脚扣机械试验负荷()(1分)
A.2PH
B.100kg
C.120kg
D.225kg
[多选题]开放性骨折现场救护原则:()
A.不冲洗
B.要冲洗
C.不涂药
D.要涂药
[单选题]使用手杖上台阶方法不正确的是( )
A.先上患腿
B.先上健腿
C.后上患腿
D.叮嘱老年人扶好楼梯扶手
E.手杖放在脚的前外侧
[单项选择]On the night of September 2, 1666, a fire broke out in a baker’s shop near Fish Street Hill in Lon- don. Before the flames were finally extinguished (扑灭), nearly the entire cid, had been reduced to ashes. Over thirteen thousand homes, fifty churches, and numerous public buildings and hospitals were lost in the fire. For all practical purposes, London was destroyed.
The Great Fire was not seen as a total tragedy, however. The deplorable (糟糕)conditions of the city had been attacked by physicians and humanitarians for years before the fire; thus, with the opportunity clearly presented to create a shining new city, artists and craftsmen from all over England hurried to submit their designs for the rebuilding of London.
Among those who submitted plans was Sir Christopher Wren, one of England’s leading architects and the Surveyor General of London. The task of rebuilding the city was given to him. Wren realized that the Great Fire would not have been so damaging if the city bad
A. Nothing—they were never finished.
B. They were adopted in modified form.
C. They were followed and London was rebuilt at once.
D. Nothing—London was rebuilt as it had been before the fire.
[判断题]岔线是指在区间或站内接轨,通向路内外单位的专用线路。
A.正确
B.错误
[单选题]更换绝缘子串和移动导线的作业,当采用单吊(拉)线装置时,应采取防止导线脱落时的后备保护措施。
A.正确
B.错误
C.略
D.略
E.略
F.略
[单项选择]信用卡持卡人的信用额度最高一般是()万元人民币。
A. 3
B. 4
C. 5
D. 8
[单选题]密度测井主要是利用( ),测井时利用 Cs137伽玛源,它放出的 γ射线的能量不是很高。
A.电子对生成效应
B.康普顿散射现象
C.光电效应
D.以上均不正确
[判断题]2.124 公安机关交通管理部门可以通过互联网服务平台为个人用户提供机动车驾驶人考试预约业务。考试预约成功后,公安机关交通管理部门应当告知用户按时、按地参加机动车驾驶人考试。
A.正确
B.错误
[多项选择]气道湿化分为()
A. 蒸汽加温加湿
B. 温湿交换过滤器
C. 气管内直接滴入
D. 雾化加温给药
E. 提高病房湿度
[单选题]依据《中国南方电网有限责任公司电力安全工作规程》,使用携带型火炉或喷灯时,火焰与带电部分的距离:电压在10kV及以下者,不应小于()m;电压在10kV以上者,不得小于()m。
A.1.0、3
B.0.7、1.5
C.1.5、3
D.1.0、1.5
[判断题]提高国家文化软实力要“形于中”而“发于外”,我们切实把自身的文化建设搞好,朝着建设社会主义文化强国的目标不断前进。 ( )
A.正确
B.错误
[单项选择]导线接头的机械强度不小于原导线机械强度的()%。
A. 80
B. 90
C. 95
[判断题]虽然一些职业病治疗较为困难、甚至无法治疗,但职业病都是可以预防的。
A.正确
B.错误
[单项选择]十二指肠溃疡腹痛特点是( )
A. 进食-疼痛-缓解
B. 疼痛-进食-缓解
C. 上腹部饱胀感,与进食无明显关系
D. 中腹部持续性或阵发性绞痛
E. 疼痛-便意-便后缓解
[填空题]
What’s the furthest you have ever cycled Perhaps you cycle to
school or to work, or maybe at{{U}} (36) {{/U}}a short cycling trip with
friends How would you{{U}} (37) {{/U}}about spending months on the
road traveling{{U}} (38) {{/U}}from the UK to China, by bike
For British{{U}} (39) {{/U}}Pete Jones, camping rough and cycling
long distances through{{U}} (40) {{/U}}land are second nature. Mr.
Jones is currently{{U}} (41) {{/U}}a long and difficult trip across the
Eurasian{{U}} (42) {{/U}}from Britain to China. Pete Jones is no{{U}}
(43) {{/U}}to China. But he says many people there{{U}} (44)
{{/U}}. Indeed, while there are an estimated 400 million bicycles in China,
where it has long been the preferred form of transport, rapid economic growth
has fuelled an explosive expansion in car ownership.
Edward
Genochio, another British cyclist who completed a 41 000km trip to China and
back, said{{U}} (45) {{/U}}.<
[判断题]铜是较为合适的导电材料,铜的抗拉强度优于银,密度小于银,线膨胀系数比银小,铜的可焊性、抗氧化、耐腐蚀、加工性能优良,价格适中,是最早使用的导电材料。( )
A.正确
B.错误