热门试题:
[多项选择]
患儿男，6岁。因发热6天，皮疹1天就诊，病后伴咽痛、纳差、乏力。院外应用多种抗生素治疗效果不佳。查体：T39.7℃，P128次/min，呼吸29次/min，BP108/75mmHg，精神差，咽喉部红肿，扁桃体充血肿大，双侧颌下和颈部可触及数个花生米大小淋巴结，活动，无粘连和压痛，躯干部皮肤可见散在红色斑丘疹，肝肋下3cm，脾肋下1cm。
为明确诊断应做哪些检查（）
A. 血常规
B. 血病毒抗体测定
C. 胸片
D. 血清嗜异凝集反应
E. 淋巴结活检
F. 骨髓穿刺
[单项选择]关于Graves病病变，叙述错误的是（）。
A. 间质血管丰富，显著充血
B. 滤泡细胞显著增生并形成乳头
C. 滤泡上皮高柱状，细胞核深染
D. 间质淋巴细胞浸润及淋巴滤泡形成
E. 甲状腺外出现滤泡时应诊断为恶性变
[单选题]110kV绝缘油介质损耗因数检测值满足（ ）时，认为检测合格。
A.tanδ≤0.02；
B.tanδ≤0.03；
C.tanδ≤0.04；
D.tanδ≤0.05
[单选题]《铁路旅客运输规程》第三十条规定，持通票的旅客在乘车途中有效期终了、要求继续乘车时，应自（ ）或最近前方停车站起，另行补票，核收手续费。
A.列车始发站
B.旅客上车站
C.有效期终了站
D.中途站
[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 philoso-
phrrs 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 wag
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 referred 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,flashllights,street lamps and glowing gases in glass
tube.
4 When we draw the way light travels we always use straight lines.This is because normally 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.
Some instances such as reflection and absorption can change_________.
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]经济区是指以劳动地域分工为基础客观形成的不同层次、各具特色的经济地域。
[单选题] 电容器组禁止()。
A.带电合闸
B.带电荷合闸
C.停电合闸
[多选题]审核人是指确认工作必要性，工作票上所填工作内容和安全措施是否 ， 的审核人员
A.正确
B.完备
C.具体
D.违规
[单选题]A330-200飞机的洗手间内有________个氧气面罩，当客舱释压时会自动脱落。
A.1
B.2
C.3
D.4
[单选题]人体在安静状态下处于低温环境中的主要散热形式是( )
A.辐射
B.传导
C.蒸发
D.对流
E.运动
[单项选择]某湿陷性新近堆积黄土，经人工夯实（0.5kN普通石夯，落距50cm，分别夯三遍）其夯实前的含水量为w=18，液限为25.7，则人工处理后的容许承载力应为（）。
A. 100kPa
B. 110kPa
C. 120kPa
D. 130kPa
[单选题]在PowerPoint2007中，使用( )可以为幻灯片建立统一的外观。
A.形状
B.动画
C.表格
D.母版
[单项选择]Which of the following is not true according to the passage
A. Intelligence includes word understanding and problem solving.
B. More intelligent children usually do better in school.
C. The French Ministry of Education was charged with the development of first intelligence tests.
D. Intelligence is related with ag
[单选题]铁路军事运输装备物资发生损坏、丢失的，车站应会同（）、乘车部队或者押运人员编制“货运记录”，需要倒装、整理的，编制“普通记录
A.产品质量监督部门
B.公安部门
C.货运主管部门
D.车辆段
[单项选择]在Visual FoxPro中，通用型字段G和备注型字段M在表中的宽度都是________。
A. 2个字节
B. 4个字节
C. 8个字节
D. 10个字节
[单选题]187.行政许可需要行政机关内设的多个机构办理的，该行政机关应当确定______受理行政许可申请，统一送达行政许可决定。( )
A.本级行政机关
B.下级行政机关
C.一个机构
D.一级组织
[单选题]台阶高度为台阶上.下平盘之间的（ ）间距。
A.垂直
B.水平
C.直线
[单选题]急性心肌梗死患者若需行择期手术,应在病情稳定后
A.
半个月
B.
6 个月
C.
3 个月
D.
1 个月
E.
1 年
[单选题]绝缘隔板和绝缘罩应存放在室内干燥、离地面（）mm以上的架上或专用的柜内。
A.100
B.150
C.180
D.200
[单选题]电力运行事故因()原因造成的,电力企业不承担赔偿责任。
A. 电力线路故障
B. 电力系统瓦解
C. 不可抗力和用户自身的过错
D. 除电力部门差错外的
[多选题]现场勘验的方法有（）
A.离心法
B.向心法
C.分段法
D.循线法
E.随机法
[单项选择]It is customary to leave a house
A. through the kitchen window
B. through a bedroom
C. by the door
D. down a drain-pipe
[判断题]排水横管坡度应符合设计要求，一般不得小于最小坡度，也不宜大于0.15。
A.正确
B.错误
[填空题]The writer considers that comparing the two players coming from Cote d’Ivoire, Toure played better,
[单选题]《劳动法》规定，用人单位必须为劳动者提供符合国家规定的劳动安全卫生条件和必要的（ ）。
A.劳动防护费用
B.劳动安全补贴
C.劳动防护用品
[判断题]B7型车集电靴碳滑板检查要求手摇碳滑板，确认碳滑板安装紧固无异常。
A.正确
B.错误
[多选题] 以下属于华为10G PON OLT 特性的是( )
A. 支持上行 2.5Gbit/s,下行 10Gbit/s 的非对称速率
B. 支持上行 10Gbit/s,下行 10Gbit/s 的对称速率
C. 支持 Type B保护,及双归保护
D. 每个 10G GPON端口支持 128个ONU
[单项选择]某供电所运维班安排张三、王二两人进行10kV杆塔上带电核相工作，核相时张三、王二与带电部位保持应不小于（）m的作业安全距离。
A. 0.3
B. 0.7
C. 0.8
D. 1.0
[单项选择]下列哪种药物适用于高血压脑病患者快速降血压后的维持用药（）
A. 硝普钠
B. 硝酸甘油
C. 硝苯地平
D. 利血平
E. 硫酸镁
[单选题][T]BF013 5 1 3
放喷量( )井筒容积,立即取样化验,含水稳定后求产。
A.等于
B.超过
C.小于
D.等于或小于
[判断题]优质服务是电是一种特殊的商品。 有问题
A.正确
B.错误
[单项选择]下述哪项符合限制性心肌病
A. 心内膜及心内膜下心肌纤维化
B. 心肌间质纤维化
C. 心肌细胞呈旋涡状排列
D. 心肌细胞变性坏死
E. 心肌间质内淋巴细胞浸润
[简答题] 驻站联络员和现场防护员应 ,由安全责任意识强、技术业务精、生理和心理健
康的职工担任。
[单项选择]6岁小儿轻度贫血的诊断指标是 :
A. Hb>120g/L
B. Hb~120g/L
C. Hb~90g/L
D. Hb~60g/L
E. Hb~30g/L
