热门试题:
[单选题]A-B-001 5 2 3
10KV 母分没有快切后加速保护，是因为母分有( )保护，其功能与快切后加速保护相同。
A.复合电压过流
B.充电
C.过流
D.速断
[判断题]Biopak240型氧气呼吸器如果压力表管路被切断，压力表管路中的流量限制器将把流量限制到0.5L/min，以便安全地撤离危险区。
A.正确
B.错误
[单项选择]
When I was about 12 I had an enemy, a girl who liked to point out my shortcomings. Week by week her list grew: I was skinny, I wasn’t a good student, I was boyish, I talked too loud, and so on. I put up with her as long as I could. At last, with great anger, I ran to my father in tears.
He listened to my outburst quietly. Then he asked, "Are the things she says true or not"
True I wanted to know how to strike back. What did troth have to do with it
"Mary, didn’t you ever wonder what you are really like Well, you now have that girl’s opinion. Go and make a list of everything she said and mark the points that are true. Pay no attention to the other things she said."
I did as he directed and discovered to my surprise that about half the things were true. Some of them I couldn’t change (like being skinny), but a good number I could and suddenly wanted to change.
For the first time in my life I got a f
A. Talking with her.
B. Pointing out her weak points.
C. Reporting to the teacher.
D. Quarrelling with her.
[单选题]消防救援人员不论职位高低，在政治上一律平等，相互间是( )关系。
A.同志
B.同事
C.战友
D.群众
[单选题] ()是离心压缩机的技术特性.
A.曲线平缓
B.曲线陡
C.多级效率高
D.绝热压缩
[单项选择]下列不属于公安机关办案部门负责人批准的法律文书是（）。
A. 调取证据通知书
B. 传唤证
C. 检查证
D. 鉴定聘请书
[判断题]设有钢筋混凝土构造柱的抗震多层砖房砖墙应砌成马牙槎，每一马牙槎沿高度方向的尺寸不超过300mm，马牙槎从每层柱脚开始，应先进后退砌筑。
[单项选择]零件图的技术要求是指（）。
A. 表面粗糙度
B. 尺寸公差和形位公差
C. 热处理或表面处理
D. 都是
[不定项选择题]共用题干
第二篇
Archive Gallery : The Best of Bionics（仿生学）
Humans might be the most highly-evolved species on the planet,but most animals possess skills we can
only dream of having. Imagine how much electricity we could save if we could see in the dark the way cats
do. Imagine leaping from tree to tree like a monkey. Giraffes（长颈鹿）,which are otherwise calm and good-
natured,sleep only 4.6 hours a day.
We realized a long , long time ago that nature provides the best blueprint（蓝图）for invention. We ' ve
borrowed canals from beavers（河狸）and reflectors from cat's eyes. Although the words"bionics"became
popular only after the l960s,history shows that nature has always provided ideas on solving everyday prob-
lems. Our archives（档案）don't go back to the time of Leonardo da Vinci and his bird-like flying machines,
but we can take you to the late 19th century,where we applied those same principles for building our first
practical airplanes.
To prepare for their flight at Kitty Hawk,the Wright brothers studied the movements of pigeons to fingure
out how they stayed high up when they were heavier than air. Their success inspired scores of successors to
improve on the airplane by studying various aspects of nature.One of Orville Wright's pupils caught and
stuffed seagulls to examine their wingspan.Meanwhile,two French inventors examined spinning sycamore（美
国梧桐）seeds in an effort to apply those same motions , reversed , to a helicopter.
Some examples are more obvious than others.The outside of the airplane designed by the Wright
Drotliers looks like a minimalistic（简单抽象艺术）structure. On the other hand , Barney Connett ' s fish
iubmarine（潜水艇）actually looks like a fish.
Some bio-inspired concepts have yet to be invented.In the l960s,the US Army commissioned several
iniversity professors to conduct research on the motor skills of animals in hope of applying those same abili-
ies to tanks. Tanks that run like horses or jump like grasshoppers（蚂炸）一sounds shocking,doesn't it?
3ut imagine how life would change if we could achieve that.
What happened after the Wright brothers'success?
A.People carried out a systematic study on pigeons.
B.People studied more animals and plants to develop the airplane.
C.People could fly their airplanes for fun.
D.People kept their airplanes at a French gallery.
[多项选择]与传统的定期预算相比，滚动预算的主要优点是( )。
A. 透明度高
B. 及时性强
C. 连续性突出
D. 可比性强
[多选题]所有上岗人员，都必须经过（），（）上岗。
A.培训、考试合格
B.培训、持证
C.持证
D.考试
[单选题]正当防卫的限度条件是（）
A.不能超过必要限度
B.不能超过犯罪人追求的结果
C.不能在防卫强度上超过犯罪人的行为强度
D.不能明显超过必要限度造成重大损害
二、判断题（350题）
[单项选择]使用马弗炉时，测温范围在（）℃以内时，镍铬一镍铝热电偶可长期置于炉膛进行监测。
A. 800
B. 1000
C. 600
D. 900
[单选题]CTC需转为车站操作方式时（ ）应进行登记。
A.列车调度员
B.车站值班员
C.车站调度员
D.设备管理单位
[多选题]《安全生产法》中提及的“四新”是指新工艺、新设备和( )。
A.新技术
B.新人
C.新材料
D.新环境
[判断题]收费人员要做好CPC卡的保管工作人为丢失CPC卡的须赔付CPC卡工本费30元做好详细记录按规定定期上交CPC卡工本费。( )
A.正确
B.错误
[单选题].φ159×5的管子内的平均流速为2.5m/s,所以管道内的流量为( )m3/h
A.150.3
B.161.2
C.156.93
D.154.3
[单选题]接地线的两端夹具应保证接地线与导体和接地装置都能接触良好、拆装方便，有足够的（ ），并在大短路电流通过时不致松脱。
A.机械强度
B.耐压强度
C.通流能力
D.拉伸能力
[填空题]驼峰集中操纵的道岔,应由( )负责管理。
[判断题]根据近代死亡概念。整体死亡的标志是脑死亡，即全脑功能的永久性消失。
[多选题]其他站线,道岔轨道静态几何尺寸计划维修的容许偏差管理值为( )。
A.轨距+5-3mm。
B.轨距+3-2mm。
C.水平、高低：6mm。
D.水平、高低：8mm。
E.三角坑（扭曲）5mm。
F.三角坑（扭曲）8mm。
G.轨向（直线）6mm,（支距）2mm。
H.轨向（直线）8mm,（支距）3mm。
[判断题]信访事项已经受理或者正在办理的，信访人在规定期限内向受理、办理机关的上级机关再提出同一信访事项的，该上级机关可以受理。
A.正确
B.错误
[判断题] 玻璃幕墙工程防火构造应按防火分区总数抽查3%,并不得少于3处。 ( )
A.正确
B.错误
[单选题]感觉、知觉、表象是( )。
A.感性认识的三种形式
B.理性认识的三种形式
C.社会心理的三种形式
D.社会意识形态的三种形式
[判断题]教学中，教师处于主体地位，教师的教具有主导作用。( )
[单选题]试运行时,( )须做好添乘记录。
A. 新造单位
B. 配属单位
C. 机务部门
D. 一体化单位
[单选题]以下设备不属于直流系统设备的是（）。
A.整流器
B.电池组
C.交流变换器
D.UPS
[单选题]所有接触网设备，自第一次送电开始，在未办理停电接地手续之前，所有单位、部门及人员均须按（）。
A.无电对待
B.有电对待
C.与车站联系确定有无电
D.与电务值班人员确定有无电
[单项选择]超声心动图观察主动脉瓣的常用切面，不包括（）
A. 胸骨旁左室长轴切面
B. 心尖五腔心切面
C. 胸骨旁主动脉根部短轴切面
D. 心尖四腔心切面
E. 心尖左心室长轴切面
[多选题]下列属于隔离开关试验项目的有：（ ）。
A.绝缘电阻测量
B.负荷开关导电回路电阻测量
C.操动机构的试验
D.检查操动机构线圈的最低动作电压
[单项选择]千斤顶的起重能力很大，一次起高大约在（）米。
A. 0.2—0.5
B. 0.3—0.8
C. 0.2—0.8
D. 0.1—0.6
[单项选择]我国的制造业处在国际分工和产业链的（）。
A. 低端
B. 中低端
C. 中端
D. 中高端
