热门试题:
[单选题]建筑施工企业应当在施工现场采取维护安全、防范危险、预防
火灾等措施；有条件的，应当对施工现场实行封闭管理。（ ）
A.正确
B.错误
[单项选择]船舶在港内失火，船舶消防的总指挥是：
A. 港口管理部门
B. 港务监督部门
C. 船长
D. 公安消防部门
[判断题]职业劳动规范是劳动者的基本*行为准则，起着巨大的调控和导向作用。
[单项选择]以下不属于裂缝深度观测方法的是（）一般采用金属丝探测，也可采用超声波探伤仪、钻孔取样和孔内电视照像等方法观测。等外观状况变化。
A. 金属丝探测
B. 超声波探伤仪探测
C. 钻孔取样观测
D. 孔外电视照像观测
[单项选择]男，70岁，戴全口义齿一周，诉：口腔处于休息状态时固位尚可，说话时义齿易脱落，咀嚼时前牙区咬不紧东西，偶尔咬颊，临床检查可见，颊黏膜后部有一血疱。对于前牙咬不紧东西，此时应调磨（）
A. 上后牙舌尖与下后牙的颊尖
B. 上后牙的颊尖与下后牙的舌尖
C. 上下后牙的所有牙尖
D. 上后牙牙尖远中斜面和下后牙牙尖的近中斜面
E. 上后牙牙尖近中斜面和下后牙牙尖远中斜面
[单项选择]下列不属于世界各国对要约和承诺的规定的是（）。
A. 投邮主义
B. 信封主义
C. 到达主义
D. 了解主义
[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》(Q/CSG 510001-2015)第17.1.3条规定:特殊的重要电气试验,应有详细的试验方案和安全措施,并经单位( )或总工程师批准。
A. 分管生产负责人
B. 分管安全负责人
C. 第一负责人
D. 部门负责人
[单选题]调高垫板长度为( )mm,宽度比轨底窄2mm。
A.A、185
B.B、175
C.C、195
D.D、165
[单选题](48220)线路设备大修的基本任务是根据运输需要及线路设备损耗规律，有计划、按周期地对线路设备进
行更新和修理，恢复和提高线路设备强度，增强( )。
A.轨道框架阻力
B.轨道承载能力
C.线路运营能力
D.轨道防爬能力
[判断题]工作票签发人在向工作负责人发出许可工作的命令前，应记录工作班组名称、工作负责人姓名、工作地点和工作任务。
A.正确
B.错误
[填空题]She begged him______(原谅她没有准时给他回信)．
[单选题]钢丝绳做编结连接时，编结长度不应小于钢丝绳直径的（）倍。
A.10
B.15
C.20
D.25
[单选题]NJS9型电客车车门关闭，DDU上车门图标显示( )。
A.黑色
B.白色
C.红色
D.黄色
[单项选择]做距离保护整定变压器变比试验时，加于阻抗元件电压回路上的电压值为（）
A. 相间距离保护100V，接地距离保护100V；
B. 相间距离保护100V，接地距离保护60V；
C. 相间距离保护60V，接地距离保护100V；
D. 相间距离保护60V，接地距离保护60V。
[多选题]建筑防水涂料粘结强度试验将粘有拉伸上夹具的试件安装在试验机上,保持试件表面垂直方向的中线与试验机夹具中心在一条线上,以mm/min的速度拉伸至试件破坏,记录试件的拉力
A.5±1
B.10±2
C.最大
D.中间
[判断题]客车错开车门时，如是司机人为错开车门，报行调按行调指示执行。
A.正确
B.错误
[多选题]物业服务招标方在招标阶段向投标物业服务企业发送的()文件视为要约邀请。
A.楼宇资料
B.服务项目及标准说明
C.招标公告
D.投标答疑函
E.中标通知书
[填空题]停车信号夜间无红色灯光时，用白色灯光（） 。
[单选题]主接地网垂直接地体间的间距不宜小于其长度（）倍，水平接地体的间距不宜小于（）m。
A.2,2
B.2,5
C.5,5
D.5,10
[单选题]鼻硬结病具有轻度传染性，其传染途径是
A.传染途径不明
B.呼吸道飞沫传染
C.消化道传染
D.接触传染
E.蚊虫叮咬传染
[单选题]根据《安全生产许可证条例》,未取得安全生产许可证擅自进行生产的,责令停止生产,没收违法所得,并处10万元以上()万元以下的罚款;造成重大事故或者其他严重后果,构成犯罪的,依法追究刑事责任。正确
A.50
B.80
C.100
[单项选择]关于CT透视的叙述，错误的是：
A. 以滑环技术为基础
B. 快速图像重建
C. 连续图像显示
D. 采集速率大于20幅/秒
E. 应用专用图像重建处理硬件
[不定项选择题]资料：Seeking to end a stalemate in negotiations over her country’s withdrawal from the European Union, Prime Minister Theresa May of Britain offered Friday substantial payments to the bloc during a two-year transition period immediately after the country’s exit.
Mrs. May’s long-awaited intervention, during a speech in Florence, Italy, was being watched closely in capitals on the Continent and in London, where members of her cabinet have been fiercely divided over Britain’s tortuous divorce from the bloc. The speech aimed to open the way to serious negotiations on what is commonly known as Brexit, and to a broader and more productive discussion about Britain’s relationship with the bloc.
However, while offering some concessions designed to do that, Mrs. May did not give any fresh insight into the type of ties she ultimately wants Britain to have to the bloc-a question that divides her cabinet and her Conservative, or Tory, Party.
The European Union’s chief negotiators, Michel Barnier, issued a cautious response, saying in a statement that, “We look forward to the United Kingdom’s negotiators explaining the concrete implications of Prime Minister Theresa May’s speech. Our ambition is to find a rapid agreement on the conditions of the United Kingdom’s orderly withdrawal, as well as on a possible transition period.”
Although Britain is scheduled to exit the European Union in 2019, there has been little progress in talks since March, when London formally announced its intention to leave. Brussels is insisting that Britain agree to the terms of the divorce before discussing future trade ties, while the British would like to do both simultaneously.
In light of the continuing standoff, many business worry about a “cliff edge” scenario, in which Britain would crash out without a deal, so Mrs. May is under pressure to find a way out of the impasses. Speaking in Florence on Friday, Mrs. May did not say precisely how much money Britain would continue to contribute to the European Union. But she made a significant promise that the British-who are big net contributors to the bloc-would not leave a hole in the union’s budget in 2019 and 2020.
“I do not want our partners to fear that they will need to pay more or receive less over the remainder of the current budget plan as a result of our decision to leave.” Mrs. May said. That would probably mean payments of around 20 billion euros, or about $24 billion, after Britain’s departure. It would also effectively maintain the state quo for the duration of a two-year transition period, meaning that Britain would allow the free movement of European workers and accept rulings from the European Court of Justice. This alone is unlikely to be enough to satisfy the 27 other member nations, but Mrs. May hinted that she would be willing to go further and “honor commitments we have made during the period of our membership.”
In addition, Mrs. May proposed a security partnership with the European Union, stressing Britain’s importance as a defense power, and also offered new legal safeguards to guarantee the rights of European Union citizens in Britain after Brexit.
Over all, Mrs. May sought to stress the common interest London shares with continental European capitals in reaching an agreement and avoiding disruption to trade, wrapping her odder in dialogue that was more positive, and less antagonistic, than that of some previous interventions.
European Union negotiators have refused to talk about post-Brexit ties until they judge that there is “sufficient progress” on the issues they consider a priority. the states of European Union citizens in Britain after it leaves, the border between Ireland and Northern Ireland(which is a part of the United Kingdom)and Britain’s financial commitments to the bloc.
There is little sign yet that the other 27 nations are prepared to grant Britain a bespoke agreement, and officials have warned London on numerous occasions that there would be no “cherry picking” of the parts of European Union membership it likes.
What’s the main idea of this passage?
A.Thereas May’s makes financial commitment to EU for the transition period.
B.Britain insists on leaving EU without any agreement.
C.EU won’t talk to Britain unless Britain makes concessions
D.Thereas May seeks to unlock Brexit talks in her speech.
[单项选择]二战期间，在美国制造原子弹的核物理专家不包括：（）
A. 希拉德
B. 泰勒
C. 魏格纳
D. 魏德纳
[多项选择]倡导低碳生活方式和消费模式是（）
A. 省电节电
B. 珍惜粮食
C. 理性消费
D. 简约装修
[判断题]测量中等长度尺寸的导轨在垂直平内的直线度误差时，采用实物基准法较合适。
A.正确
B.错误
[单选题]肺炎的病因中葡萄球菌的主要致病物质是
A.内毒素
B.外毒素
C.脂多糖
D.毒素与酶
E.透明质酸
[多选题]换流变非电量保护主要有(____)。
A.换流变本体的压力释放阀压力高告警
B.有载调压分接开关压力释放阀压力高告警
C.换流变本体轻瓦斯告警
D.换流变本体重瓦斯跳闸和套管SF6密度继电器压力低告警跳闸
[多选题]短路电流的计算方法有( )。
A.经济电流法
B.公式法
C.图解法
D.节点电流法
E.杰尔霍夫定论
F.右手定则
[单选题]同一工程项目或同一施工场所有多个承包商施工时,生产经营单位应与承办商签订()。
A.专门的安全管理协议
B.安全生产责任状
C.安全生产规章制度
D.安全生产奖惩制度
[判断题]汽轮机一般允许的正胀差值大于负胀差值。( )
A.正确
B.错误
[单选题]车辆脱轨适用于空车、重车的挂钢丝绳的方法是挂( )处。
A.车辆中部
B.车辆头部两侧边角
C.车辆两枕梁
D.挂车辆两侧梁
[判断题]‐29039 同型号稳压管的稳定电压值一定相同。( )
A.正确
B.错误
[单项选择]玉米按子粒形态结构分类有（）个类型。
A. 6
B. 7
C. 8
D. 9
[单选题]在带电设备区域内使用汽车吊、斗臂车时，车身应使用不小于（ ）mm2的软铜线可靠接地。
A.14
B.16
C.18
D.20
[填空题]一空循环水采用（）循环系统，中空循环水采用（）循环系统。
[单项选择]覆盆子属于（）
A. 补虚药
B. 驱虫药
C. 行气药
D. 收涩药
E. 温里药
