热门试题:
[单项选择]车孔时的切削速度比车外圆时()。
A. 低10%~20%
B. 低20%~40%
C. 高5%~10%
D. 高10%~20%
[单项选择]聚氯乙烯塑料电缆的使用电压范围是()。
A. 1~10kV
B. 10~35kV
C. 35~110kV
D. 110kV以上
[单项选择]磷酸盐包埋材料固化后体积()
A. 收缩
B. 膨胀
C. 不变
D. 不一定
E. 先膨胀后收缩
[单项选择]击出性骨折是下列哪个部位受到钝器损伤所引起?()
A. 鼻骨
B. 额窦
C. 筛窦
D. 眼
E. 蝶窦
[单项选择]眩晕证与哪些脏腑有关()
A. 肺、脾、肾
B. 心、肝、肾
C. 肝、脾、肾
D. 肺、胃、肾
E. 肺、肝、肾
[多选题]消防救援机构在消防监督检查时发现具有( )情形之一的,应当确定为火灾隐患
A.影响人员安全疏散或者灭火救援行动,不能立即改正的
B.消防设施不完好有效,影响防火灭火功能的
C.擅自改变防火分区,容易导致火势蔓延、扩大的
D.在人员密集场所违反消防安全规定,使用、储存易燃易爆化学物品,不能立即改正的
E.不符合城市消防安全布局要求,影响公共安全的
[判断题] 公安机关在取保候审期间不得中断对案件的侦查,除不够追究刑事责任外,应当待取保候审期限届满解除取保候审。
A.正确
B.错误
[单项选择]
{{B}}TEXT A{{/B}}
Learning is an essential
process for living things to acquiring necessary skills and behaviours.
Scientists have already found that there is a critical period for learning in
man and animals. Once the right time for learning a skill or a certain behaviour
has passed, this skill or behaviour can never be properly learned.
Thorpe of Cambridge University found that the chaffinch has to learn most
of its songs, and that this learning has to occur during the early weeks of the
bird’s life and also during the first spring. If the bird is handreared and
isolated from other birds from the time of hatching, it sings only very simple
songs and it never learns the song of its species correctly.
That we speak our own language perfectly and the languages we learn later
imperfectly also depends on learning this skill at the right time. The brain
develops in such a way that it is ready to learn to speak betw
A. the process of learning is complicated
B. the older a learner is, the less efficient his learning is
C. ageing of the brain influences learning
D. learners can benefit from their learning experience
[判断题]桥隧大修工程的施工质量,以每件工程为单位综合评定,分为“合格”、“不合格”两个等级。《修规》第8.5.5条
A.正确
B.错误
[单项选择]Passage 1
Question 1to 5 are based on the following passage.
Looking back on my childhood. I am convinced that naturalists are born and not made. Although we were brought up in the same way, my brothers and sisters soon abandoned their pressed(紧抱的) flowers and insects. Unlike them ,I hand no ear for music and languages, I was not an early reader and I could not do mental arithmetic.
Before World war I we spent our summer holidays in Hungary. I have only the dim memory of the house we lived in, of my room and my toys. (76) {{U}}Nor do I recall clearly the large family of grandparents, aunts, uncles and cousins who gathered next door .{{/U}} but I do have a crystal-clear memory of dogs, the farm animals , the local birds and above all ,the insects.
I am a naturalist, not a scientist. I have a strong love of the natural world, and my enthusiasm has led me into varied investigations. I love discussing my favorite topics and enjoy burning the midnight. I love discussing my favorite t
A. just reads about other people’s observations and discoveries
B. comes up with solutions in most natural ways
C. has a great deal of trouble doing mental arithmetic
D. lacks some of the qualities required of scientist
[单选题]列车拉铁鞋开车,该事故为( )事故。
A.一般A类
B.一般B类
C.一般C类
D.一般D类
[多选题]对改造或新安装设备,现场勘察需核实现场( )并与土建及电气设计图纸核对无误。
A.安装基础数据
B.主要材料型号
C.主要材料材质
D.主要材料规格
[单选题]如果某药物的血浓度是按零级动力学消除,这就表明( )
A.继续增加药物摄入量,血中药物浓度也不会再增加
B.不论给药速度如何药物消除速度恒定
C.t1/2 是不随给药速度而变化的恒定值
D.药物的消除主要靠肾脏排泄
E.药物的消除主要靠肝脏代谢
[不定项选择题]共用题干
Parkinson's Disease
1 Parkinson's disease affects the way you move.It happens when there is a problem with certain nerve
cells in the brain. Normally , these nerve cells make an important chemical called dopamine(多巴胺). Dopa-
mine sends signals to the part of your brain that controls movement.It lets your muscles move smoothly and
do what you want them to do.When you have Parkinson's,these nerve cells break down.Then you no longer
have enough dopamine,and you have trouble moving the way you want to.
2 No one knows for sure what makes these nerve cells break down.But scientists are doing a lot of re-
search to look for the answer. They are studying many possible causes,including aging and poisons in the en-
vironment.Abnormal genes seem to lead to Parkinson's disease in some people.But so far,there is not enough
proof to show that it is always inherited.
3 Tremor(颤抖)may be the first symptom you notice.It is one of the most common signs of the
disease,although not everyone has it.Tremor often starts in just one arm or leg or only on one side of the
body.It may be worse when you are awake but not moving the affected arm or leg. It may get better when you
move the limb or when you are asleep.In time,Parkinson's affects muscles all through your body,so it can
lead to problems like trouble swallowing or constipation(便秘).In the later stages of the disease , a person
with Parkinson's may have a fixed or blank expression,trouble speaking,and other problems.Some people
also have a decrease in mental skills.
4 At this time,there is no cure for Parkinson's disease.But there are several types of medicines that
can control the symptoms and make the disease easier to live with.You may not even need treatment if your
symptoms are mild.Your doctor may wait to prescribe medicines until your symptoms start to get in the way of
your daily life.Your doctor will adjust your medicines as your symptoms get worse.You may need to take
several medicines to get the best results.
A person with Parkinson's has to learn to live with the disease,__________.
A.what affects muscles all through your body
B.if there isn't enough dopamine in your body
C.which cannot be cured yet
D.which may be the first symptom you notice
E.if you have a fixed or blank expression
F.what causes Parkinson's disease
[单选题]保险公司的工作人员甲利用职务上的便利,故意编造未曾发生的保险事故
进行虚假理赔,骗取保险金归自己所有。对于甲的行为定性,下列哪一选项是正确的?( )
A.侵占罪
B.职务侵占罪
C.诈骗罪
D.信用卡诈骗罪
[多项选择]以下何种情况的房性心动过速需紧急处理().
A. 合并房室传导阻滞时
B. 有休克征象
C. 有充血性心力衰竭征象
D. 由洋地黄中毒引起
E. 心室率达140次/分以上
[多项选择]事故应急救援的总目标是通过有效的应急救援行动,尽可能降低事故的后果,包括 ( )。
A. 人员伤亡
B. 环境破坏
C. 技术改进
D. 财产损失
E. 精神损失
[判断题]《铁路旅客运输规程》中规定,每一成人旅客可免费携带一名身高不足1.1米的儿童,超过一名时,超过的人数应买儿童票。
A.正确
B.错误
[单选题](单选题,1 分)
经产妇,30岁。规律宫缩20小时后宫口开全,1小时后胎儿娩岀,20分钟后胎盘娩岀,突然出现阴道大量流血。血压80/60mmHgP100次/分。导致阴道出血的最可能原因是
A.软产道损伤
B.凝血功能障碍
C.胎盘残留
D.宫缩乏力
E.胎盘植入
[单选题]具有多少年以上从事美容牙科或口腔科专业临床工作经历的执业医师,经考试合格,可以注册到美容牙科的主诊医师。( )
A..3
B..4
C..5
D..6
[单选题]根据《民航安全信息管理规定》以下是非紧急事件的是( )。
A.A.航空器中断起飞
B.B.飞行中航空器失控或失速
C.C.冲/偏出跑道
D.D.通信、导航设备或监视设施/设备不能提供服务,影响航空器正常运行
[判断题]图像智能识别典型应用架构以“两库一平台”为依托,支撑无人机业务图像识别类应用建设,实现缺陷信息的自主流转和样本信息的自主归集。
A.正确
B.错误
[判断题]国有企业党委(党组)发挥领导作用,把方向、管大局、保落实,依照规定讨论和决定企业重大事项。( )
A.正确
B.错误
[单选题]关系模型SC(学号,姓名,学院,学院领导,课程号,课程名,成绩),函数依赖集F={学号→(姓名,学院,学院领导),学院→学院领导,课程号→课程名,(学号,课程号)→成绩},则关系SC中( ),要满足第二范式,应将SC分解为(请作答此空)。
A.S(学号,姓名,学院,学院领导),C(课程号,课程名,成绩)
B.S(学号,姓名),D(学院,学院领导),C(课程号,课程名,成绩)
C.S(学号,姓名),D(学院,学院领导),C(课程号,课程名),SC(学号,课程名,成绩)
D.S(学号,姓名,学院,学院领导),C(课程号,课程名),SC(学号,课程号,成绩)
[判断题]专卖管理工作人员不认真履行岗位职责,违背有关程序和纪律要求的,徇私舞弊,利用职务便利谋取不正当利益的,要追究行政责任。( )
A.正确
B.错误
[单选题] (单选题)自由王国是指人们()
A. 处于绝对自由的原始社会状态
B. 不再受自然规律和社会规律支配的状态
C. 允许自由竞争的资本主义状态
D. 摆脱了自然和社会关系的奴役,成为自己社会关系主人的状态
[单项选择]劳动保障监察工作的行政主管部门是()。
A. 税务局
B. 财政局
C. 劳动保障行政部门
D. 公安局
[多项选择]2009年5月某国内采购货物加工出口的生产企业(一般纳税人),当其申报出口退税应当报送的资料有( )。
A. 《生产企业出口货物免、抵、退税申报汇总表》
B. 《生产企业出口货物免、抵、退税申报明细表》
C. 《增值税纳税申报表》
D. 《生产企业进料加工贸易免税证明》
E. 经外汇管理部门签章的出口收汇核销单(出口退税专用)
[多选题]遇有()等紧急情况,人民警察依法可以使用武器。
A.抢夺
B.决水
C.携带枪支在逃
D.劫狱
[单项选择]一般建筑物高度在( )时,应设置障碍照明。
A. 40m以上
B. 60m以上
C. 80m以上
D. 100m以上
[单选题]列车长与车站办理借票手续后,( )应发电报向有关收入管理部门、站段报告借票情况。
A.列车长
B.列车值班员
C.出借票据方
D.车站值班员
[填空题]在实际工作中常把声源简化为();()和线声源三种。
[单选题]填石路堤压实质量标准的控制指标宜采用()
A.压实度
B.沉降差
C.密度
D.孔隙率
[单选题] 单相半控桥整流电路的两只晶闸管的触发脉冲依次应相差( )。
A. 180°
B. 60°
C. 360°
D. 120°