热门试题:
[单选题]光力合一的流动配电箱,一般应装设( )剩余电流动作保护开关或防中性线断线的安全保护装置。
A. 一极
B. 二极
C. 三极
D. 四极
[多选题]( )上跨铁路电力线,必须经集团公司批准,确保跨越线的技术条件、安全防护标准等满足相关规定。
A.新建
B.改建
C.拆除
D.以上都不是
[多项选择]建设工程勘察合同示范文本中,适用于为设计提供勘察工作的委托任务的合同条款主要有 ( )。
A. 违约责任
B. 合同争议的解决
C. 未尽事宜的约定
D. 设计合同依据的文件
E. 材料设备的供应
[多选题]煤矿“三违”是指职工在工作中出现的( )、违章指挥和违反( )的()。
A.工作
B.违章作业
C.劳动纪律
D.行动
E.行为
[单项选择]以下除哪项外,均为儿科培元补肾法的常用方剂( )
A. 参苓白术散
B. 参蛤散
C. 六味地黄丸
D. 调元散
E. 金匮肾气丸
[判断题]审计工作采取现场审计与非现场审计相结合的方式。( )
A.正确
B.错误
[单项选择]
阅读下面短文,从短文后所组的A、B、C三个选项中选出能填入相应空白处的最佳选项。
Tom was a black boy. {{U}} (41)
{{/U}}he was three years old, he suddenly {{U}} (42) {{/U}} ill one
evening. The next day he got {{U}} (43) {{/U}} worse. His parents could
do {{U}} (44) {{/U}} but took him to a black doctor. The doctor said that
he was{{U}} (45) {{/U}}ill and must be sent to a hospital immediately.
In a hurry his father took him to a hospital {{U}} (46) {{/U}}. But the
hospital refused to take him in for it was for the white only. Tom’s father took
him to {{U}} (47) {{/U}}hospital, the same thing {{U}} (48)
{{/U}}to him. At last his father had to drive him to a black hospital
{{U}} (49) {{/U}}. But it was too late. Little Tom{{U}} (50)
{{/U}}before they got there. |
[单项选择]临床Ⅲ级的法洛四联症患者的氧饱和度是()。
A. <70%
B. 70%~75%
C. 75%~85%
D. 85%~95%
E. >90%
[判断题]电弧炉冶炼过程中,吹氧脱碳期间只能脱磷,不能脱硫。 ( )
A.正确
B.错误
[单选题]预热器火焰调节:先打开氧气阀门,()秒后开始打开丙烷阀门,然后交替开大氧气、丙烷阀门,直至氧气阀门完全打开。
A.3
B.4
C.5
D.6
[判断题]用扁铲铲削硬材料时,楔角要大些,磨成()。
A.正确
B.错误
[单项选择]《传染性非典型肺炎疫情监测方案》规定,农村医疗机构及其医务人员发现传染性非典型肺炎病人或者疑似病人时,向当地县(区、市)疾病预防控制机构报告疫情的时限是()
A. 2小时内
B. 6小时内
C. 12小时内
D. 24小时内
E. 48小时内
[单选题]WXJ-50型微电子相敏轨道电路接收器工作电源为( )
A.24V
B.110V
C.220V
D.60V
[判断题]年最大负荷利用小时数Tmax愈大,愈说明工厂负荷不均匀。 ( )
A.正确
B.错误
[单选题] 配电站、开闭所、箱式变电站等的钥匙至少应有( )。
A.一把
B.二把
C.三把
D.四把.
[单选题]有甲乙丙丁四个互斥方案,投资额分别为1000万元、800万元、700万元、600万 元,方案计算期均为10年,基准收益率为15%,计算差额内部收益率结果ΔIRR甲-乙、 ΔIRR乙-丙、ΔIRR丙-丁分别为14. 2%、16%、15.1%,应选择:
A.甲方案
B.乙方案
C.丙方案
D.丁方案
[多选题]根据《电力工程钻探技术规程》(DL/T5096-2008)5.1.4条规定,硬质合金钻进技术参数应根据岩石性质、( )和孔壁的稳定情况等因素合理选择。
A.钻头形状
B.孔径
C.钻头结构
D.设备能力
[单项选择]备在开工升温后进行热紧的作用是()。
A. 防止泄漏
B. 消除热应力
C. 原本没有拧紧,现在才拧紧
D. 没有作用
[单项选择]
The purpose of the requirements definition phase is to produce a clear, complete, consistent, and testable (1) of the technical requirements for the software product.
During the requirements definition phase, the requirements definition team uses an iterative process to expand a broad statement of the system requirements into a complete and detailed specification of each function that the software must perform and each (2) that it must meet. The starting point is usually a set of high-level requirements from the (3) that describe the project or problem.
In either case, the requirements definition team formulates an overall concept for the system and the defines (4) showing how the system will be operated, publishes the system and operation concept documents, and conducts a system concept review(SCR).
Following the SCR, the team derives (5) requirements for the system from the high level requirements and the system operati
A. criterion
B. standard
C. model
D. system
[填空题]传统ADSL技术采用DMT调制技术,1.1MHz的带宽被分成()个子通道(tone),每个子通道占用4.3125kHz的频带。
[判断题]查照间隔(辙叉心作用面至护轨头部外侧的距离)不得小于1391 mm。
A.正确
B.错误
[单选题]锉削的应用范围很广,可以锉削( )、曲面、外表面、内孔、沟槽和各种形状复杂的表面。
A.凹凸面
B.平面
C.S面
D.任何面
[判断题]扣件的作用是扣压钢轨,并根据需要调整轨距。每块扣板都有多个不同号码,可以翻转使用,调整两种轨距。
A.正确
B.错误
[多选题]在配电线路、设备上进行非电气专业工作(如电力通信工作等),应执行工作票制度,并履行()等相关安全组织措施。
A.停电
B.工作许可
C.验电
D.接地
E.工作监护
F.略
[判断题]低压配电设备、低压电缆、集束导线、充(换)电设备等停电检修,无法装设接地线时,应采取绝缘遮蔽或其他可靠隔离措施。
A.正确
B.错误
[单选题]2.31.
真空断路器绝缘电阻测量时,整体绝缘电阻应不低于()。
A.500MΩ
B.1500MΩ
C.2500MΩ
D.3000MΩ
[单选题](单选题).高血压患者应该节制饮酒,一般建议男性将饮白酒量控制在()
A.5ml/d
B.15ml/d
C.40ml/d
D.50ml/d
E.30ml/d
[多选题] 卸扣使用的基本要求有( )。 (1.0分)
A. 不得处于吊件的转角处
B. 不得横向受力
C. 销轴不得扣在能活动的绳套或索具内
D. 卸扣上的缺陷不允许补焊
E. 用普通材料的螺栓取代卸扣销轴
[单选题]公安机关办理行政案件,初次鉴定、检测费用由( )承担。
A.A.违法嫌疑人
B.B.被侵害人
C.C.公安机关
D.D.鉴定人
[简答题]我们平时看到的沙漏在古代是用来计算什么工具?
[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
A. A.5) and Michael Mutter (para.7) seem to differ over ______. the benefits of urbanization.B. the process of urbanizationC. the causes of urbanization.D. the cost of urbanization.
[单选题]起征点只能照顾一部分纳税人,而免征额可以照顾适用范围内的所有纳税人。
A.正确
B.错误
[填空题]月检中TVM硬币模块的检修包含清洁硬币通道、投币口、{|*|}、各传感器和模块框架。
[判断题]巷道掘进时,爆破母线应随用随挂。不得使用固定爆破母线,特殊情况下,在采取安全措施后,可不受此限。
A.正确
B.错误
[单选题]法治和礼治发生在两种不同的社会 中。这里所谓的礼治也许就是通常所谓的人治,但是礼治一词不会像人治一词那样容易引起 ,以致有人觉得社会秩序是可以由个人好恶来维持的了。
依次填入划横线部分最恰当的一项是()
A.形态 歧义
B.模式 偏差
C.情态 误解
D.形势 干扰
[单选题] 人的安全知识安全意识安全态度安全价值体系安全认识观属于安全文化中()部分。
A.安全的物质文化
B.安全的行为文化
C.安全的观念文化
D.安全的制度文化