热门试题:
[单项选择]直拍反手攻球或推挡时，食指和中指协调用力，拇指相对（）
A. 放松
B. 紧张
C. 用力
[单选题]在二手交易平台上看到一台全新平板电脑，价格只有官网价的一半，你很心动，应该怎么做？（）
A.好货不等人，果断下手
B.让卖家多发点图片视频，我在线验货
C.冷静一下，天上不会掉馅饼，我不能上当
[判断题]52. 公民在特殊情况下无法书面委托代理人的，可以口头委托。口头委托的，行政复议机构只需核实。（）
A.正确
B.错误
[单选题] F8分配阀完全采用橡胶密封结构,彻底取消( ),检修方便。
A.金属滑阀
B.铅合金滑阀
C.胶木滑阀
D.无金属
[单项选择]硫胺素缺乏可产生（）。
A. 癞皮病
B. 恶性贫血
C. 眼干燥症
D. 克山病
E. 脚气病
[多选题]国网六统一V3常规PSL-603UA-G装置用于3/2接线时，下列表述正确的是（ ）
A、AC插件有两组电流CT接入端子
B、选配功能需选择K
C、边中开关电流可分别接入AC插件
D、边中开关电流可外部求和后接入AC插件第一组电流端子，第二组电流端子需封CT
A.A
B.B
C.C
D.D
[多选题]坐姿脱帽时，双手捏帽檐或者帽前端两侧，将帽取下，置于桌（台）面前沿左侧或者膝上，使（）、（），也可以置于桌斗内。( )
A.帽顶向上
B.帽徽朝前
C.帽顶向下
D.帽徽朝后
[单项选择]串级控制系统对副变量的要求不严，在控制过程中，副变量是不断跟随主控制器的输出变化而变化的，所以副控制器一般采用（）控制规律；必要时引入适当的（）作用。
A. P
B. PD
C. PI
D. PID
[单项选择]下列不属于法定丙类传染病的是
A. 流行性腮腺炎
B. 流行性感冒
C. 急性出血性结膜炎
D. 病毒性肝炎
E. 新生儿破伤风
[单选题]党的全国代表大会每()举行一次。
A.3年
B.4年
C.5年
[单项选择]金库应按日均清分量（）万/台的标准，配备清分机。
A. 200
B. 300
C. 400
D. 500
[判断题]营销远程实时费控是指基于营销业务应用系统的客户相关信息和客户预先交纳的费用，根据高速数据处理器实时（准实时）推送的电能表示数信息，自动测算客户用电剩余电费金额。
A.正确
B.错误
[判断题]矛盾的共性是有条件的、相对的。
A.正确
B.错误
[判断题]纵坡大于5%的路段，不可停放车辆。（ ）
A.正确
B.错误
[单项选择]脱苯操作对富油含水量、含苯量的要求是：（）
A. 含水量愈小愈好，含苯量愈高愈好。
B. 含水量愈小愈好，含苯量愈小愈好。
C. 含水量愈高愈好，含苯量愈小愈好。
[判断题]潜水员下潜时应遵守下列规定：a）戴好头盔后应试验排气阀门，调节空气，确认正常无异时，方可沿水绳下水。b）当头盔刚淹没水线下时，停止排气，检查潜水衣、头盔、接口、袖口等有无漏气现象，经信号员检查许可后，方可下潜。
A.正确
B.错误
[判断题]我国汽车用齿轮油黏度分类参照美国汽车工程师协会（SAE）黏度分类法，分为70W、75W、80W、85W、90、140、和250七种黏度等级。（ ）
A.正确
B.错误
[填空题]According to the author, before he meets somebody, he will have a good sleep.
[单选题]急救骨折病人时首先应( )。
A. 活动骨折部位
B.寻找担架
C.病人立即停止活动,将骨折部位简单固定
D.立即背起送医院
[单选题]以下哪项不是IgA肾病的临床表现：
A.肉眼血尿发作
B.无症状性尿异常
C.高血压
D.肾病综合征
E.白细胞尿
[多项选择]李白在渝州所作的诗歌作品有（）。
A. 《上李邕》
B. 《巫山枕障》
C. 《上三峡》
D. 《赠从弟南平太守之遥二首》
[单项选择]定量某种理想气体经历某种可逆过程，过程中不可能同时发生（）
A. 吸热、升温又对外做正功
B. 吸热、降温又对外做负功
C. 吸热、升温又对外做负功
D. 吸热、降温又对外做正功
[多选题]容器塑性破坏的特征有（）。
A.圆筒形容器爆破后一般成两头小、中间大的鼓形
B.断口呈撕裂状
C.断口不齐平，与主应力方向成45度角，破坏部分拼合时，沿断口间有间隙
D.破裂时一般不产生碎片
E.具有较大的塑性变形，容积变形率可达l0％～20％
[单选题]带电作业绝缘工具电气预防性试验中,操作冲击试验以()为合格(采用250/2500μs的标准波)。
A.无二次击穿、闪络
B.无二次击穿
C.无一次击穿、闪络
D.无一次击穿
[单项选择]拔牙创的检查与处理哪项是错误的（）
A. 应检查拔除的牙是否完整
B. 应检查拔除的牙根数目是否符合
C. 刮除拔牙创内肉芽组织
D. 复位扩大的牙槽窝
E. 将消毒纱布填入牙槽窝
[不定项选择题]共用题干
第一篇
How to Do with Earthquake?
Ideally,people would like to know when an earthquake is going to happen and how bad it will
be.In both Japan and China,people have long believed that earthquakes can be forecast. In Japan, scientists have wired the Earth and sea to detect movements.The Chinese have traditionally watched animals and plants for warning signs of earthquakes.For example,the Chinese have noted that before an earthquake,hens' behavior changes一they refuse to enter their cages at night. They have also noticed that snakes come out of the ground to freeze to death and that dogs bark a lot,even normally quiet dogs.Before the Hanshin earthquake in Japan,there were reports of large schools of fish swimming near the surface of the water. Certain birds,like pigeons,also seemed to be especially noisy and were reported to be flying in unusual patterns before the earthquake.
Perhaps most interesting,and most easily measured,is a chemical change in ground water before a quake.Experimental data seem to indicate that the amount of radon(Rn)in the water under the surface of the Earth waxes before an earthquake.
People would also like to be able to prevent the great destruction of property caused by earthquakes.After all,most of the people who die in earthquakes are killed by falling buildings.Therefore,building structures that can withstand the power of earthquakes is a major concern.Steel seems to be the best material,but not if it is welded to form a rigid structure.
Many new structures are built with a new type of steel joint,an I-joint,which appears to be the most durable type of joint. These joints of steel can move without breaking. Also,to prevent property damage,architects now design buildings so that the building's columns and horizontal beams are of equal strength,and vertical support columns are inserted deep into solid soil.In addition,many new houses have relatively light roofs and strong walls.Concrete pillars for highway bridges that previously only had steel rods inside are now enclosed in steel.
Besides working to improve building structures,people in areas where earthquakes are common need to prepare for the possibility of a great earthquake.They should regularly check and reinforce their homes,place heavy objects in low positions,attach cupboards and cabinets to walls,and fasten doors so that they will not open accidentally during an earthquake.
What should people do to prepare for earthquakes?
A.Check and reinforce their homes.
B.Place light objects in low positions.
C.Build strong roofs and light walls.
D.Attach doors to walls.
[单选题]牵引定数、区间运行时分确定后，未经批准（ ）变更。
A.不得
B.可以
C.随便
[判断题]( )横越线路时，要注意左右机车、车车辆的动态及脚下有无障碍物。
A.正确
B.错误
[单选题]文员在接打电话时,正确的做法是()。
A.电话铃响一声就应接听
B.在电话机旁随时放着电话记录单和笔,一有留言就能立即记录下来
C.文员接听业务电话时,应首先让对方报出姓名、单位
D.文员替上司传话时,应考虑对方的情绪以个人的口吻转达
[单项选择]预应力混凝土梁的徐变观测点布置在箱梁的四个支点和跨中截面的两侧腹板梁顶处，每孔梁的测点不少于（）个。
A. 2
B. 4
C. 6
D. 8
[多选题]中性点不接地方式特点( )
A.6-66kV配电网,电容电流小于10A
B.发生单相接地故障时,接地电弧能够自动熄灭,系统可带故障运行2h
C.容易导致PT铁芯饱和,引发铁磁谐振过电压
D.当系统电容电流过大时,接地电弧无法自动熄灭,将导致故障扩大
E.当系统电感电流过大时,接地电弧无法自动熄灭,将导致故障扩大
