热门试题:
[单选题]正电源与跳合闸回路、正电源与负电源回路、交流电流与交流电压回路、交流回路与直流回路间的端子布置应至少间隔2个端子,且绝缘可靠。
A.正确
B.错误
C.略
D.略
E.略
F.略
[单选题]根据《民用航空安全检查工作手册》第47条,民航安检机构试用民航局组织的尚未制定技术标准的新技术类安检设备的,应当按照( )有关规定,及时提交试用报告。
A.国务院
B.民航局公安局
C.民航局
D.当地政府
.
[简答题]76.Only when the war was over_______________________________(这个年轻士兵回他的故乡).
[单项选择]刑事侦查工作是指依据国家法律的有关规定,采用(),揭露、打击和防范刑事犯罪的一项专门工作。
A. 公安科学技术
B. 专门调查方法和强制性措施
C. 专门调查方法
D. 国家强制力
[单选题]抱杆应坐落在坚实稳固平整的地基或设计规定的基础上,若为软弱地基时应采取防止抱杆()的措施。
A.上拔
B.滑脱
C.松动
D.下沉
[单选题]焊后,焊件在一定温度范围内再次加热(消除应力热处理或其他加热过程)而产生的裂纹称为___。
A.冷裂纹
B.热裂纹
C.再热裂纹
D.层状撕裂
[单项选择]现金管理业务的签约交易,必须在()办理。
A. 网上银行
B. 手机银行
C. 柜台
D. 以上选项均不正确
[单选题]油气田生产区域范围较大,在关键( )、重要桥梁处设置视频监控,可以远程观察到现场情况,发现异常情况,及时处理突发情况,并有利于震慑犯罪分子,预防和减少犯罪。( )
A.生产区域
B.井场、站(厂)
C.路口
D.生活区域
[判断题]发热点温度未达到严重缺陷,增加红外检测频次,监视热点,填报缺陷,联系检修人员查明原因。
A.正确
B.错误
[单选题]通过改变经济订货批量(EOQ)模型的成本估算,来确定这些变化在多大程度上影响最佳经济订货批量的分析方法叫做:
A.预测模式
B.敏感度分析
C.关键路径分析
D.决策分析
[单选题]关于混凝土的拌制与运输说法,正确的是()。
A.泵送混凝土应选用硅酸盐水泥、普通硅酸盐水泥、火山灰质硅酸盐水泥等
B.粗集料宜采用间断级配,细集料宜采用中砂
C.当掺用掺合料较多时,除应满足强度要求外,还应进行钢筋锈蚀及混凝土碳化试验
D.混凝土运至浇筑地点后发生离析、严重泌水或坍落度不符合要求时,应废弃
[单选题]耳毒性
A.青霉素G的不良反应
B.四环素的不良反应
C.阿米卡星的不良反应
D.磺胺甲唑的不良反应
E.氯霉素的不良反应
[单项选择]
Overview
The Grand Hotel, which is situated at Fort Worth International Airport in Dallas, has a covered, climate-controlled skywalk that connects the hotel directly to Terminal 3 and to an Automated People Mover going to Terminal 1.
Our check-in kiosks, recently installed in the lobby, allow our guests to check in for flights and receive their boarding passes (147) from the hotel. Guests can also check their baggage here and not have to worry about lining up at the airport. The monitors set up next to the kiosks display flight departure and arrival times to ensure that you’re (148) on time. At the Grand Hotel, you will feel right at home the moment you set foot in our hotel. Our warm and friendly staff will go out of their way to make you feel right at home. Relax and unwind from the stresses of (149) in one of our recently renovated guest rooms, complete with a jacuzzi in each room.<
A. right
B. rightly
C. rightful
D. rightfully
[单项选择]焊接直流电源正接是指()。
A. 焊件接电源输入端的正极,焊钳接负极
B. 焊件接电源输出端的正极,焊钳接负极
C. 焊件接电源输出端的负极,焊钳接正极
[多项选择]带电作业应在()天气下进行。如遇雷电(听见雷声、看见闪电)、雪雹、雨雾不得进行带电作业。风力大于()时,一般不宜进行带电作业。
A. 良好
B. 晴好
C. 5级
D. 6级
[判断题]以施工操作人员的自检、互检、交接检以及施工单位专业人员的检查评定为基础,由监理人员组织检验批、分项工程和子分部工程的验收。(1分)
A.正确
B.错误
[单项选择]
[听力原文]
M: Make three copies for me and five for Mr. Brown.
W: Certainly, sir. As soon as I make the final corrections on the original.
What is the probable relationship between the two speakers()
A. Boss and secretary.
B. Teacher and student.
C. Customer and waitress.
D. Lawyer and client.
[多项选择]机电工程项目采购工作实施程序中的现场服务管理的内容包括( )。
A. 采购技术服务
B. 召开供货商协调会
C. 采购完工报告编制
D. 供货质量问题的处理
E. 供货商专家服务的联系和协调
[单选题]关于压路机的使用技术要求的说法中,正确的是( )。
A.在压路机没有熄火时,必须使用支垫
、三角木支护牢靠后,进行机下检修
B.碾压傍山道路时,必须由外侧向里侧碾压
C.两台以上压路机同时作业,其前后距离不得小于3m;在坡道上行驶时,其间距不得小于20m
D.必须在固定的碾压路段内转向,不允许压路机在惯性滚动的状态下变换方向
[判断题]气瓶押运人员可坐在车厢内。
A.正确
B.错误
[判断题]运动中首先消耗的是肌糖元。()
A.正确
B.错误
[单选题]先张法桥梁混凝土构件,当混凝土强度不低于设计强度等级的80%时即可放张。
A.正确
B.错误
[简答题]我国为什么要对住房福利分配制度实施改革,
[判断题]港口岸电工作过程中,遇到大雨雷电、大风大浪等恶劣天气禁止开展室外工作。
A.正确
B.错误
[单项选择]一次性医用注射器(1ml)吸水前后两次称重的差除以当前水温下水的密度,计算出注射器的吸水容量,再计算出该注射器的容量误差。容量误差(%)的质量标准为()。
A. <±1
B. <±2
C. <±3
D. <±5
E. <±10
[单选题]WINDOWS中要查看隐藏文件和系统文件,可在资源管理器的哪个菜单中实现( ).
A.文件
B.编辑
C.查看
D.帮助
[判断题]飞机甚高频天线位置靠近大翼和驾驶舱中间的为空客,靠近驾驶舱的为波音。()
A.正确
B.错误
[多选题]进入燃烧列车内抢救被困人员时,营救人员要仔细搜寻列车内的( )。
A.座席下
B.厕所
C.乘务员室
D.车顶
[判断题]防雷设备检修内容为:包括接地线、引线、动作计数器等,测量接地电阻、放电间隙、预防性试验,周期为6个月.
A.正确
B.错误
[单项选择]以下哪项不属于大众传播的功能?()
A. 新闻传播的功能
B. 舆论导向的功能
C. 文化娱乐的功能
D. 宏观调控的功能
[单选题]中国药典2015版规定鉴别盐酸麻黄碱的方法如下:取本品约10mg,加水1ml溶解后,加硫酸铜试液2滴与20%氢氧化钠试液1ml,即显色;加乙醚1ml,振摇后,乙醚层显紫红色,水层的颜色变为
A.红色
B.蓝色
C.紫色
D.紫红色
E.蓝紫色
[填空题]Who will run into the new year first Could you test your{{U}} (36) {{/U}}by trying these questions
An island in the Pacific Ocean{{U}} (37) {{/U}}the New Millennium first. One hour later, New Zealand become the first{{U}} (38) {{/U}}nation to enter the new{{U}} (39) {{/U}}.
In China, President Jiang lit a fire to{{U}} (40) {{/U}}thousands of years of Chinese{{U}} (41) {{/U}}. The{{U}} (42) {{/U}}Chinese New year begins in February.
Kussia covering two{{U}} (43) {{/U}}will have the world’s longest New Year celebrations.{{U}} (44) {{/U}}
The US officials are increasing security as the nation prepares for New Year’s celebrations.{{U}} (45) {{/U}} .President Clinton{{U}} (46) {{/U}}.Officials in California are increasing security after someone stole ninety kilograms of explosives.
[单选题]若互感器用于高压电路中,为了防止绝缘击穿时二次侧产生高电压,应该( )。
A.使二次侧有一点接地;
B.使二次侧对地绝缘;
C.二次装熔断器;
D.二次侧短接;
[单项选择]
In most cultures, when you meet acquaintances for the first time during a day, it is normal to greet them. The main purpose of this greeting is to (1) a good relationship between the people (2) and each language usually has (3) set phrases which can be used for this purpose. Sometimes, though, there can be (4) differences in the type of phrases which can be used, and cultural misunderstandings can easily (5) . The following is a true example.
A young British woman went to Hong Kong to work, and at the time of her (6) she knew nothing about the Chinese culture of language. (7) her way to school one day, she went to the bank to get some money. (8) , the bank clerk asked her if she had had her lunch. She was extremely surprised (9) such a question because in the British culture it would be (10) an indirect invitation to lunch. Between unmarried young people it can also (11) the young man’s interest in dating the girl. (12) this bank clerk was a complete stranger (13) t
A. processed
B. produced
C. provided
D. proceeded
[单选题]循环水场开工前,不需准备的化工辅材是( )。
A.缓蚀阻垢剂
B.杀菌剂
C.清洗剂
D.混凝剂
[单项选择]多发性肌炎一般不侵犯()
A. 四肢近端肌
B. 颈肌
C. 咽喉肌
D. 呼吸肌
E. 眼外肌