热门试题:
[单项选择]
The Internet use appears to cause a loss in psychological (36) , (37) a research (38) the Carnegie Mellon University.
(39) people who spent just (40) hours a week on the Internet experienced more depression(沮丧) and loneliness (41) those who spend less time on the Net, the (42) study showed. And it wasn’t (43) people who were already feeling bad spent more time on the Internet, but that using the Net actually appeared to cause the bad feelings.
Researchers are (44) at the results, (45) were completely (46) to their views. They expected that the Net would prove socially (47) than television, since the Net allows users to choose their information and to communicate with others.
The fact (48) the Internet use reduces time available for family and friends may (49) for the drop in well-being. Faceless, bodiless communication may be le
A. that
B. which
C. who
D. they
[单项选择]( )的阅读器通过天线发送出一定频率的射频信号,当标签进入磁场时产生感应电流从而获得能量,这时阅读器即可无接触地读取并识别电子标签中所保存的电子数据,从而达到自动识别物体的目的。
A. 条码
B. RFID
C. IC卡
D. 磁条卡
[单项选择]根据社会形态划分,城市的发展阶段不包括()
A. 农业社会城市
B. 工业社会城市
C. 后工业社会城市
D. 商业社会城市
[单选题]民用飞机技术文件的章节编号所遵循的规范是( )
A.ATA100
B.FAA100
C.ATA200
D.FAA200
[单项选择]"We'll do what we can to get the goods ______ on time. "said the manager of the company.
A. reached
B. delivered
C. returned
D. come
[多项选择]按照工程承包方式分类,项目合同的类型包括()
A. 勘察、设计或施工,总承包合同
B. 单位工程施工承包合同
C. 成本加酬金合同
D. BOT合同
[单项选择]制动手把在全制动位置时,毫安表必须接近零。制动油残压必须小于()兆帕。
A. 0.5
B. 1
C. 1.5
[判断题] 在狭窄、陡坡、急弯、松软路面等复杂路况行驶时,应注意观察,控制车速,谨慎驾驶,防止操作失误,必要时下车指挥引导,或组织乘车人员下车徒步通过。
*
A.正确
B.错误
[单选题] (单选题) 根据《加强直接作业环节安全管理十条措施》,发 生一般 A 级事故的分包商给予()18~36 个月的处罚。 (1.0分)
A. 停工
B. 限制投标
C. 清退
D. 列入承包商黑名单
[单选题]343.圆跳动公差与全跳动公差的不同点在于测量仪器与工件有无()。
A.轴向位移
B.径向位移
C.相对运动
D.静止不动
[单选题]A/O法中的A段DO通常为。( )
A. 0
B. 2
C. 0.5
D. 4
[判断题]三极管放大的实质是将低电压放大成高电压。()
A.正确
B.错误
[单选题](____)kV及以下电网电压的调整宜采用逆调压方式。
A. 10
B. 35
C. 110
D. 220
[判断题]值班长交接班记录需要领导审阅签字。( )
A.正确
B.错误
[简答题]什么是电气火灾?发生电气火灾时的消防方法是什么?
[多选题]井控设备应具有( )的功用。
A.及时发现溢流预防井喷
B.迅速控制井喷
C.控制井内流体的排放,实施压井作业,对油气井重新建立压力控制
D.处理复杂情况
E.制定压井方案
[单选题]电缆竣工图比例尺宜()
A.1:100;
B.1:200;
C.1:300;
D. 1:500
[判断题]电气设备的金属外壳接地属于工作接地。
A.正确
B.错误
[单选题]—个档距内,单根绝缘线绝缘层的损伤修补不宜超过( )处。
A.一
B.二
C.三
D.四
[单选题]关于站用交流电源系统运行规定说法,下列不正确的是()
A.两路不同站用变电源供电的负荷回路不得并列运行,站用交流环网严禁合环运行
B.站用电系统重要负荷(如主变压器冷却系统、直流系统等)应采用双回路供电,且接于不同的站用电母线段上,并能实现自动切换
C.接入发电车等应急电源时,应进行带负荷试验
D.站用交流电源系统涉及拆动接线工作后,恢复时应进行核相
[单项选择]How does the writer value art of the Middle Ages
A. The art of the Middle Ages is elevated by its religious and sacred facet.
B. Artists of the Middle Ages were absolutely talented.
C. The art of the Middle Ages formed its own unique system.
D. The religious works in the Middle Ages reached unparallel height in art.
[判断题]电网项目建设投资可以分为静态投资和动态投资部分,建设期利息、建筑安装工程费、工程建设其他费、基本预备费都属于静态投资。
A.正确
B.错误
[单项选择]There are many kinds of friends. Some are always (1) you, but don’t understand you. Some say only a few words to you, but understand you. Many people will step in your life, but only (2) friends leave footprints.
I shall always recall the autumn and the girl with the (3) . She will always bring back the friendship between us. I know she will always be my best friend.
It was the golden season. I could see the yellow leaves (4) with the cool (5) . In such a season, I liked walking alone on the roads covered with leaves, (6) to the sound of them.
Autumn is a (7) season and life is uninteresting. The free days always get me (8) . But one day, the sound of a violin (9) into my ears like a stream flowing in the mountains. I was so surprised that I jumped to see what it was. A young girl, standing in the wind, was (10) in playing her violin.
I had (11) seen her before. The music
A. good
B. true
C. new
D. old
[简答题]旅馆未按规定办理外国人住宿登记的,如何处罚?
[单项选择]下面哪一种应急预案演练的主要特点是口头演练,一般是在会议室内举行()?
A. 桌面演练
B. 功能演练
C. 全面演练
[单选题]救生软梯是一种可以卷叠收藏在包装袋内的移动式梯子,主要在( )等发生火灾或其他意外事故通道(楼梯)被封时,
A.高层、野外救生
B.仓库、大型油罐
C.楼层、大型船舶
D.高层、竖井
[多选题]各液压管施压后,操作者应检查压接尺寸并记录,经自检合格并经监理人员验证后,( )应在铝管的不压区打上钢印。[DL/T 5285—2018《输变电工程架空导线(800mm2以下)及地线液压压接工艺规程》10.2.2]
A.A.压接操作人员
B.B.施工项目质检员
C.C.监理人员
D.D.业主项目质量专责
[单项选择]肺痨之肺阴亏虚的治法是()。
A. 滋阴止咳
B. 滋阴降火
C. 益气养阴
D. 滋阴补阳
E. 滋阴润肺
[单选题]私自超过合同容量用电的,除应拆除私增容量设备外,用户还应交私增容量50元/kW的违约使用电费。
A.正确
B.错误
[单项选择]六点行为评分法中"有疼痛,无法忽视,干扰注意力"属于()。
A. 1分
B. 2分
C. 3分
D. 4分
E. 5分
[单选题]关于肺段的描述,错误的是
A.在肺段内,肺动脉的分支和肺段支气管的分支伴行,肺段间静脉行于相邻两肺段之间
B.每一肺段支气管及其分支和它所属的肺组织称为肺段
C.肺段呈圆锥形,尖朝向肺门,底向肺的表面
D.每一肺叶支气管及其所属的肺组织为一肺段
E.相邻肺段的肺动脉分支不相吻合
[单选题]卫星便携站中,TDMA指什么?
A.时分复用
B.频分复用
C.码分多址
D.信道
[判断题]CRH2A统型动车组前罩开闭机构由开闭装置、锁紧装置、头罩三部分组成.
A.正确
B.错误
[判断题]CCTV系统字符叠加功能支持视频监控平台对制定的摄像机图像进行字符叠加,支持软件叠加中英文字符、日期、时间及紧急消息。( )
A.正确
B.错误
[判断题]居民区和交通道路附近立、撤杆,应设警戒范围或警告标志,并派人看守。
A.正确
B.错误
[判断题]柱上变压器定期巡视周期:市区半个月
A.正确
B.错误