热门试题:
[填空题]NO.7信令网为安全可靠采用()和()两平面方式。
[单选题] 年版第五套人民币100元纸币取消了( )防伪特征。
A.隐形面额数字
B.双色异形横号码
C.红、蓝彩色纤维
D.全息磁性开窗安全线
[单项选择]调味在丰富菜品属性方面,对菜品的()作用更为突出。
A. 香、味、色
B. 香、形、味
C. 香、味、形
D. 香、味、质
[不定项选择题]《中华人民共和国环境影响评价法》中对“规划有关环境影响的篇章或者说明”有()规定。
A.对规划实施后可能造成的环境影响作出分析、预测和评估,提出预防或者减轻不良环境影响的对策和措施
B.作为规划草案的组成部分一并报送规划审批机关
C.未编写有关环境影响的篇章或者说明的规划草案,审批机关不予审批
D.作出环境影响评价的结论
[单选题]在燃烧过程中,当燃气喷离火孔的速度小于燃烧速度时,火焰就会缩入燃烧器内部,形成( ),这种现象称为“回火”。
A.熄火现象
B.过度燃烧
C.不完全燃烧
D.急速燃烧
[单选题]立井井筒与各水平车场的连接处,必须设有专用的( ),严禁人员通过提升间。
A.人行道
B.躲避硐
C.运物车
[单选题]起钻快时才会产生抽汲作用,这种说法是( )的。
A.正确
B.错误
[多选题]根据公安机关办理行政案件的有关规定,鉴定意见应当载明( )。
A.委托人
B.委托鉴定事项
C.鉴定时间
D.结论性意见
[简答题]part 2 & 3Talk about your family.
How many family members do you have
Who is the head in the family in China The men or the women
Who is the head in your family
What do you think about the parents treatment to their child
[多选题]视觉信号分为( )、( )及( )信号。在昼间遇降雾、暴风雨雪及其他情况,致使停车信号显示距离不足1000m,注意或减速信号显示距离不足400m,调车信号及调车手信号显示距离不足200m时,应使用夜间信号。
A.昼间
B.夜间
C.昼夜通用
D.手信号
[不定项选择题]根据下面资料,回答题
They may have lived some 1,700 years ago, but the ancient Maya had an incredible knowledge of celestial bodies, which they believed influenced everything.
Now a 15-year-old boy has studied astronomical charts devised by these ancient Mexican people, as well as satellite photos, to pinpoint the location of a forgotten Mayan city. William Gadoury, from Quebec has named the "lost city" in the Yucatan jungle K′aak Chi, or Mouth of Fire.
Satellite images suggest the lost city could be among the largest built by the ancient civilisation, which thrived between 300 and 700 A
D.
Wondering why the ancient people built their cities far away from rivers and in inhospitable mountains prompted the teenager to look to the sky for answers. Incredibly, the brightest of the stars matched the largest cities.
"I was really surprised and excited when I realised that the most brilliant stars of the constellations matched the largest Maya cities." He told The Journal of Montreal.
He is said to be the first to make the connection, which could lead to further finds.
It was in the 23rd constellation, containing three stars, that he found two matching cities on the map, suggesting one has not yet been re-discovered.
To investigate further, he used satellite images from the Canadian Space Agency and Google Earth to search the dense jungle for any signs of buildings.
The photographs revealed linear features that "stuck out," Daniel De Lisle, from the Canadian Space Agency told The Independent.
"There are linear features that would suggest there is something underneath that big canopy," he said. Armand La Rocque, from the University of New Brunswick believes one of the images shows network of streets leading to a large square, which may be a pyramid. "A square is not natural, it is mostly artificial and can hardly be attributed to natural phenomena," he said.
It′s possible 30 buildings accompany an impressive pyramid at the site. If true, the lost city would be one of the five largest known to archaeologists, built by the Mayans.
Linking the position of stars and the location of a lost city and the use of satellite images on a tiny territory to identify the remains buried under dense vegetation, is quite exceptional.
Dr. La Rocque thinks William Gadoury′s technique could lead archaeologists to pinpointing the location of more possible lost Mayan metropolises.
How does William Gadoury find the Maya city 查看材料
A.He studied the satellite photos.
A.He studied astronomical charts devised by these ancient Mexican people.
B.He found two matching cities on the map, suggesting one had not yet been re-discovered.
C.Both A and
D.
[单项选择]佝偻病颅骨软化多见生后()
A. 3个月以内
B. 3~6个月
C. 6~9个月
D. 9~12个月
[单选题]成套接地线应由有透明护套的多股软铜线和专用线夹组成,接地线截面积不得小于( )mm2,同时应满足装设地点短路电流的要求。
A.10
B.16
C.20
D.25
[判断题]直流回路展开图按其作用可以分为继电保护回路、信号回路、控制回路等。
[判断题]搏击操的运动时间一般为30~60分钟,保持中高强度,以最大心率的80%的运动形式进行锻炼。
[单选题]车站、车辆段、停车场均设站间行车电话,区间隧道内每隔(____)设区间电话。
A.150m~200m
B.100m~150m
C.100m~120m
D.120m~200m
[多项选择]喷射混凝施工质量评判的指标有______。
A. 表面平整度
B. 强度的均匀性
C. 回弹率
D. 抗压强度
E. 抗渗标号
[判断题]依据《防止电力生产事故的二十五项重点要求》规定,锅炉汽包水位保护在锅炉启动前和停炉前应进行实际传动校检。用上水方法进行高水位保护试验、用排污门放水的方法进行低水位保护试验,必要时可用信号短接方法进行模拟传动替代。(1.0分)
A.正确
B.错误
[单选题]劳动者对职业病诊断有异议的,在接到职业病诊断书之日( )日以内可以向作出职业病诊断的医疗卫生机构所在地设区的市级卫生行政部门申请鉴定。
A.10
B.15
C.20
D.30
[多选题] 均衡价格随着
A. 需求的增加与供给的减少而上升
B.需求的减少与供给的增加而下降
C.需求与供给的增加而上升
D.需求与供给的减少而下降
[单选题] 机动车在道路上变更车道需要注意什么?
A.尽快加速进入左侧车道
B.不能影响其他车辆正常行驶
C.进入左侧车道时适当减速
D.开启转向灯迅速向左转向
[判断题](45057)( )尖轨、可动心轨顶面宽50mm及以下断面处,尖轨顶面低于基本轨顶面、可动心轨顶面低于翼轨顶面2mm及以上时,应及时修理或更换。( )(1.0分)
A.正确
B.错误
[单选题]中国绘画是以庄子哲学为精神宗旨的。其最高境界是在人与对象的双重自然状态下实现物我浑融的境界。《庄子·田子方》载,宋元君招试画师,应试者皆____,唯有一后到者,“解衣盘礴赢”,任性自然地投身于画作。宋元君称此人为“真画者”。所谓“真画者”,是突破规范束缚而进入自由率真的创作状态的画家。
依次填入划横线部分最恰当的一项是:
A.循规拘礼
B.循规蹈矩
C.墨守成规
D.按部就班
[判断题]当管道流量不变时,如选择管径较大时,流速则减小,此时水在管道内的流动阻力也会减少。()
A.正确
B.错误
[单选题]运行中发现变压器内部声响很大,有爆裂声,或变压器套管有严重破损并有闪烁放电现象时,应立即停止运行( )
A.正确
B.错误
[判断题]安全工作的根本目的是保护国家和集体财产不受损失,保证生产和建设的正常进行。 ( )
A.正确
B.错误
[单选题]根据《民用航空安全检查规则》第26条,( )应当在售票、值机环节和民航安检工作现场待检区域,采用多媒体、实物展示等多种方式,告知公众民航安检工作的有关要求、通告。
A.公共航空运输企业、民用运输机场管理机构
B.民用航空运输企业、民用运输机场管理机构
C.公共航空运输企业、民用航空运输企业
D.公共航空运输企业、民航安检机构
[多项选择]按照员工福利发挥的功能为依据,可将其划分为( )
A. 劳动条件福利
B. 生活条件福利
C. 人际关系福利
D. 实物型福利
E. 服务型福利
[单选题]为了使交流电压变为直流电压,应使用()。
A.检波器电路
B.整流电路
C.开关电路
D.放大器电路
[单选题]起落架和舱门都是:
A.电动控制、液压操作
B.电动控制、机械操作
C.液压控制、电动操作
[判断题]变压器搬运过程中,不应有严重冲击或严重震动情况,利用机械牵引时,牵引的着力点应在变压器重心以下,以防倾斜,运输倾斜角不得超过45°,防止内部结构变形。( )
[单选题]灶台做到<___>,烟囱内部、排烟罩、排气扇孔固定部分不拆卸能接触的部位一趟一清,有登记、有检查、有签字( )
A.一趟一清
B.一餐一清
C.一班一清
D.一日一清
[单项选择]“问君能有几多愁恰似一江春水向东流。”此句出自______。
A. 李白
B. 李贺
C. 李商隐
D. 李煜
[判断题]线路所信号机故障时,在车站人员将列车进路准备妥当后,列车调度员向司机和线路所车站值班员发布调度命令,线路所车站值班员通过列车无线调度通信设备向司机转达调度命令,司机凭引导信号解锁并越过该故障信号机。XG75) ( )
A.正确
B.错误