热门试题:
[单选题]人造花的花茎一般由不同型号的铁丝包裹、加工而成，应使用（ ）将花茎剪断。
A.剪子
B.钳子
C.修枝剪
D.锯
[单项选择]根据我国《民事诉讼法》的规定，下列说法正确的是：
A. 涉外仲裁裁决被人民法院裁定不予执行的，当事人不可以协商重新申请仲裁
B. 涉外经济贸易中发牛的纠纷，当事人虽然在合同中订有仲裁条款，仍然可以向人民法院起诉
C. 对中华人民共和国涉外仲裁机构作出的裁决，人民法院认定执行该裁决违背社会公共利益的，裁定不予执行
D. 纠纷虽经中华人民共和国涉外仲裁机构裁决，当事人仍有权向人民法院起诉
[单项选择]（）是发生溢流关井后，先用原密度工作液循环排出溢流，再用加重工作液压井的方法。
A. 二次法（司钻法）
B. 一次法
C. 压回法
D. 体积法
[判断题]在抓基层建设过程中，财力物力要向基层倾斜，投向基层的经费要通盘考虑、合理使用。( )
A.正确
B.错误
[多选题]我国刑法中的刑罚分为
A.主刑
B.附加刑
C.任意刑
D.宗教刑
[填空题]我国各级政府突发事件机构可以分为（）、综合办事机构和专门工作机构三个层次。
[多选题]房地产经纪信息的鉴别就是对房地产经纪信息的( )进行分析。
A.理论性
B.准确性
C.可信性
D.真实性
E.实践性
[单选题]全电路欧姆定律应用于( )。
A.任一回路
B.任一独立回路
C.任何电路
D.简单电路
[单选题]P4-1424跳停会触发什么联锁
A.I-224
B.I-219
C.I-236
D.I-237
[单选题]以下不符合标本采集一般原则的是
A.早期采集
B.无菌采集
C.根据目的菌特性用不同的方法采集
D.采集标本越多越好
E.安全采集
[多选题]连墙件设置位置应符合下列哪些规定要求？（ ）
A.偏离主节点的距离不应大于300mm
B.偏离主节点的距离不应大于350mm
C.宜靠近主节点设置
D.应从脚手架底层第一步纵向水平杆处开始设置
E.应在脚手架第二步纵向水平杆处开始设置
[不定项选择题]共用题干
Learn about Light
1 .Ancient civilizations were amazed by the existence of light for thousands of years. The Greek philosophers believed that light was made up of countless,tiny particles that enter the human eye and create what we call vision. However,Empedocles and a Dutch scientist named Christian Huygens believed that light was like a wave. According to them,light spread out and travelled like a straight line. This theory was accepted during the 19th century.
2 .In 1905,Albert Einstein published a research paper in which he explained what is re-ferred to as the photoelectric effect. This theory explains that particles make up light.The particles Einstein was referring to are weightless bundles（束）of electromagnetic（电磁）energy called photons（光子）.Today,scientists agree that light has a dual（二重）nature一it is part particle and part wave. It is a form of energy that allows us to see things around us.
3 .Things that give off light are known as sources of light. During the day,the primary source of light is the sun. Other sources of light include stars,flames,flashlights,street lamps and glowing gases in glass tube.
4 .When we draw the way light travels we always use straight lines. This is because nor-mally light rays travel in a straight line. However,there are some instances that can change the path and even the nature of light. They are reflection,absorption,interference（干扰）, etc.
5 .Physicists have attempted to measure the speed of light since the early times. In 1849, Hippolyte Fizeau conducted an experiment by directing a beam of light to a mirror located kilometers away and placed a rotating cogwheel（旋转齿轮）between the beam and the mirror. From the rate of rotation of the wheel,number of wheel's teeth and distance of the mirror,he was able to calculate that the speed of light is 313 million meters per second. In a vacuum（真空）,however,the speed of light is 299,792,458 meters per second. This is about a million times faster than the speed of an airplane.
Hippolyte Fizeau conducted an experiment to measure______.
A.sources of light
B.the speed of light
C.the path of light
D.a straight line
E.a beam of light
F.a form of energy
[判断题]驾驶机动车发生财产损失交通事故后，当事人对事实及成因无争议移动车辆时需要对现场拍照或者标划停车位置。
[单选题]依据（ ）来划分子网？
A.DNS
B.IP地址
C.子网掩码
D.网络号
[单选题]运行中发现刀闸接触部分过热应如何处理( )。
A.立即将刀闸拉开
B.立即切开负荷油开关
C.减小负荷，待停电时紧固各件
D.不管它
[多选题]《普速车站服务质量规范》规定，有电子显示引导系统的出站口外侧设置出站屏，显示（）等信息。
A.到达车次
B.始发站
C.到达时刻
D.站台、状态
[单选题]单线车站站内正线上其他道岔(引向安全线、避难线的除外)，以( ) 开通为定
位。
A.正线
B.牵出线
C.到发线
D.货物线
[单选题].下图标记表示:
A.起飞点
B.地面站位置
C.无人机当前位置
[单选题]领导权力影响力的特点是
A.激励作用大
B.比较稳定
C.影响力持久
D.下属信服、尊敬
E.影响力有不可抗拒性
[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》,在220kV高压带电线路杆塔上且与带电导线距离为3.5米的作业安全距离的工作,应选用()。
A.线路第一种工作票
B.线路第二种工作票
C.厂站第一种工作票
D.厂站第二种工作票
[单选题]全部停电的工作，是指室内高压设备全部停电（包括架空线路与电缆引入线在内），并且通至邻接（）的门全部闭锁，以及室外高压设备全部停电（包括架空线路与电缆引入线在内）的工作。
A.A.保护室
B.B.蓄电池室
C.C.主控室
D.D.高压室
[单选题]AA022 石油钻井常用油料中,基本无润滑性的是( )。
A.螺纹脂
B.润滑脂
C.机油
D.汽油
[单选题]本病最常见的病因为（ ）
A.先天性脑动脉瘤
B.高血压
C.血小板减少
D.凝血机制障碍
E.身体健康
[单项选择]肝硬化患者出现全血细胞减少，最主要的原因是（）
A. 功能性肾衰竭
B. 营养吸收障碍
C. 上消化道大量出血
D. 脾功能亢进
E. 凝血因子合成减少
[填空题]Going to college is a significant step in our lives. In a consumer-driven society, there is an increasing (36) on the moneymaking power of the college degree. Education for the sake of personal development is no longer a key (37) of most students. As found in a survey, students have increasingly (38) a desire for a meaningful philosophy of life in favor of attaining increased earning power with their college degree. (39) this shift in educational priorities, there are still key elements to higher education that should be pursued and valued by us.
Students may worry about (40) jobs, but the reality is that employers want to hire people who have a (41) of marketable skills. These can include writing, interpersonal communication, presentation abilities, and (42) thinking. What students may not realize is that these various abilities are often attained through a balanced and diverse education.
There are ple
[判断题]第五套人民币100元、50元纸币、背面主景图案分别为人民大会堂和布达拉宫。
A.正确
B.错误
[单选题]1.17 车辆管理所应当建立考试质量和考试纪律抽查制度，每日抽查不少于_____的当天音视频电子信息档案和执法记录仪信息档案，发现存在违反考试纪律、考场秩序混乱以及视频、音频信息缺失或者不完整的，应当进行调查处理。
A.5%
B.10%
C.1%
D.3%
[判断题]回族的仪礼习俗只包括人生仪礼和生活礼节两部分。（）
[判断题]( )将电气设备的外露可导电部分(如电气设备金属外壳、配电装置的金属构架等)通过接地装置与大地相连称为保护接地。
A.正确
B.错误
[单选题]在市周转库做主要储存和配送资源时，一般按照( )使用量进行储备。
A.1个月-2个月
B.
2个月-3个月
C.
3个月-4个月
D.
4个月-6个月
[单项选择]3/4冠邻轴沟的深度为
A. 0.1mm
B. 0.2mm
C. 0.3mm
D. 0.5mm
E. 1.0mm
[单选题]关于数据电文的法律效力，正确的表述是（ ）
A.由于数据电文的易篡改性，其法律效力是不能确定的
B.由于数据的电文是一种新的形式，其法律效力需要等待法律的明确规定
C.数据电文是否具有法律效力，由有关的当事人约定
D.不得仅仅以某项信息采用数据电文形式为理由，而否定其法律效力
