[单选题]在用电信息采集系统中，主站数传电台的功率一般不大于(____)W。
A.10
B.25
C.30
D.40

[判断题]灭火器的作用是要控制燃烧，而燃烧须具备三个条件，即可燃物、着火点、助燃物。因此，只要阻止了燃烧具备的其中一个条件，就能达到灭火的目的。

[单选题]种植的材料
A.钛
B.金
C.银
D.钼
E.钯

[判断题]017 4 3 2
在停工检修过程中,最先开启塔、容器顶部的人孔。
A.正确
B.错误

[单项选择]咳嗽连续发生，由刺激强烈或不易排除的刺激因素引起的咳嗽称（）
A. 干咳
B. 湿咳
C. 疼咳
D. 痉挛性咳嗽

[填空题]液压保安系统中（ ）是用来开启和快速遮断高压主汽门，（ ）是用于机组启动前危急遮断器的挂闸和开启主汽门，（ ）是用来汽轮机在额定转速下对危急遮断气撞击子进行试验。

[单选题]轨道车制动时，初次减压量一般为()。
A.0.5kpa
B.50kpa
C.0.5Mpa
D.140kpa

[单项选择]根据委托受理甲级、乙级设备监理机构资格申请是( )的职责。
A. 国家质检总局/国家发改委
B. 设备监理管理协调办公室
C. 国务院有关部门
D. 中国设备监理自律组织

[多项选择]水源器材包括哪些种类（）。
A. 室外消火栓
B. 室内消火栓
C. 水源器材附件
D. 水带
E. 水泵结合器

[简答题]专业技术人员组成的安全委员会，负责组织开展队伍管理相关工作。

[不定项选择题]共用题干 第一篇

Human Evolution

Being a man has always been dangerous.There are about 105 males born for every 100 females, but this ratio drops to near balance at the age of maturity,and among 70-year-old there are twice as many women as men. But the great universal of male mortality is being changed.Now,boy babies survive almost as well as girls do. This means that,for the first time,there will be an excess of boys in those crucial years when they are searching for a mate. More important,another chance for natural selection has been removed. Fifty years ago,the chance of a baby(particularly a boy baby)surviving depended on its weight. A kilogram too light or too heavy meant almost certain death.Today it makes almost no difference.Since much of the variation is due to genes,one more agent of evolution has gone.
There is another way to commit evolutionary suicide:stay alive,but have fewer children.Few people are as fertile as in the past. Except in some religious communities,very few women have 15 children.Nowadays the number of births,like the age of death,has become average.Most of us have roughly the same number of offspring. Again,differences between people and the opportunity for natural selection to take advantage of it have diminished.India shows what is happening. The country offers wealth for a few in the great cities and poverty for the remaining tribal peoples.The grand mediocrity of today一everyone being the same in survival and number of offspring means that natural selection has lost 80%of its power in upper-middle一class India compared to the tribes.
For us,this means that evolution is over;the biological Utopia has arrived.Strangely,it has involved little physical change.No other species fills so many places in nature.But in the past 100,000 years一even the past 100 years一our lives have been transformed but our bodies have not. We did not evolve,because machines and society did it for us.Darwin had a phrase to describe those ignorant of evolution:"they look at an organic being as savage looks at a ship,as at something wholly beyond his comprehension."No doubt we will remember a 20th century way of life beyond comprehension for its ugliness. But however amazed our descendants may be at how far from Utopia we were,they will look just like us. The author argues that our bodies have stopped evolving because______.
A.life has been improved by technological advance
B.the number of female babies has been declining
C.our species has reached the highest stage of evolution
D.the difference between wealth and poverty is disappearing

[单选题]根据《处置非法干扰民用航空安全行为程序》，下列哪个行为属于可能危及飞行安全的行为（ ）。
A.企图打开驾驶舱门
B.在驾驶舱门口徘徊
C.故意移动机上救生设备
D.在机上抽电子香烟

[单选题]各矿要对预测揭露的大中型断层和陷落柱编制(　　)。
A.探放水设计
B.专门超前探测设计
C.物探异常区钻探验证设计
D.有掘必探设计

[单选题]在带电设备区域内使用起重机等起重设备时，应安装接地线并可靠接地，接地线应用多股软铜线，其截面积不得小于25mm2。（）
A.A-正确
B.B-错误

[单项选择]食管异物与食管癌易发生于（）
A. 食管穿膈处
B. 食管第四、五胸椎间水平
C. 右主支气管跨越处
D. 距中切牙40cm
E. 食管的第一狭窄处

[单项选择]提示双侧心房肥大的心电图表现是（）。
A. P波时限为0.13s，Ptf_Vl绝对值为0.05mm.s，P_Ⅱ、Ⅲ、aVF振幅为0.30mV
B. Ⅱ、Ⅲ、aVF导联P波时限为0.12s，峰间距>0.04s
C. P波形态高尖
D. P波振幅为0.25mV
E. P波时限为0.16s

[单项选择]《建筑施工现场临时用电安全技术规范》（JGJ46-2005）是（）。
A. 国家标准
B. 行业标准
C. 地方标准
D. 企业标准

[单选题]下面哪项不是MIMO天线可以起到的作用( )
A.收发分集
B.空间复用
C.赋形抗干扰
D.用户定位

[单选题]一位女性患者14岁初潮,月经周期为27-29天,经期为5天,其月经史应描述为
A.514/(27-29)
B.145/(27-29)
C.14(27-29)/5
D.5(27-29)/14

[单选题]A321CEO的备份救生衣有（ ）件。
A.3
B.5
C.6
D.10

[单项选择]实用新型专利申请经审查被授予专利权，在按规定交纳年费的情况下，于（）以内，任何人未经许可都不得擅自利用该专利。
A. 10年 
B. 13年 
C. 15年 
D. 20年

[简答题]目前我们使用的收费键盘按功能分为哪几个部分？

[判断题]17型车钩连接轮廓符合AAR117-67或TB/T2950-1999联锁车钩连接轮廓。
A.正确
B.错误

[判断题]中国第一个有明确政治纲领和组织机构的资产阶级革命政党就是中国同盟会。( )
A.正确
B.错误

[判断题]调车作业前,无线调车灯显设备必须试验良好。( ) J290
A.正确
B.错误

[简答题]钢筋进场时，应按国家现行标准的规定抽取试件作哪些检验？

[判断题]当电容器测量时万用表指针摆动后停止不动，说明电容器短路。
A.正确
B.错误

[简答题]简述去枕仰卧位、半坐卧位、端坐位、头低足高位、膝胸位的适用范围及其原因。

[判断题]档端角度法观测弧垂，是将经纬仪安置在架空线悬挂点的垂直下方。
A.正确
B.错误

[单项选择]According to the passage, the age range of some businesses' customers may be limited because of _____.


A. social/cultural factors
B. economic factors
C. legal/political factors
D. factors of state

[单选题]某人携带火药乘车返乡做鞭炮，途中被查获，其携带的火药属（）。
A.违禁品
B.管制品
C.作案工具
D.以上答案都不对

[单选题]常见氟里昂主要有R12、R22、 R407C等。
A.R802B
B.R607C
C.R134a
D.R608a

[判断题]应急响应通常由低级别向高级别逐级启动，也可视情越级启动，必要时可直接启动高级别响应。（ ）
A.正确
B.错误

[简答题]衡量银催化剂的主要性能指标有哪些？

[多选题]各单位应当制定低温管线外壁腐蚀的（ ）计划，降低腐蚀泄漏风险。
A.检测
B.修复
C.监测
D.维修

[单选题]通过道口车辆上部或其货物装载高度（从地面算起）超过( )m通过平交道口时，车辆上部及装载货物上严禁坐人。(电气安全规则10.48) （1分）
A.4
B.4.5
C.2
D.2.5

[简答题]视觉信号的基本颜色：黄色表示注意或减低速度。

[判断题]《铁路调车作业标准》中规定连续连挂时，可不停车连挂，要确认连挂状态，车组间距超过10车时，应试拉或顿钩。
A.正确
B.错误

[判断题]对不实行实名制的列车，旅客在车站售票窗口购票时不需有效身份证件，在互联网购票都必须提供有效身份证件信息。（ ）
A.正确
B.错误