热门试题:
[单项选择]正弦交流信号通过下列电路时会产生高次谐波()
A. 二极管整流器或三极管开关放大器
B. 复杂电阻网络
C. 复杂电容电感网络
D. 调谐在信号的整倍频上的谐振电路
[多项选择]在不锈钢管道安装时,不锈钢管壁厚大于( )mm的管子需要焊前预热。
A. 12
B. 14
C. 16
D. 18
[多选题]各类作业人员应接受相应的( ),经考试合格上岗。
A.安全生产教育
B.安全警示教育
C.岗位技能培训
D.岗位职责培训
[多选题]药剂消耗取决于( )。
A.药剂的种类和性质
B.煤的表面性质
C.入料的粒度组成
D.浮选入料浓度
[单项选择]如果上海黄金交易所根据市场风险等原因,需要调整延期补偿费费率,则交易所需要提前()。
A. 1个工作日
B. 2个工作日
C. 3个工作日
D. 4个工作日
[单选题] 公司信贷客户的理性动机不包括()
A.获得低融资成本;
B.增加短期支付能力;
C.得到长期金融支持;
D.获得影响力。
[单项选择]海明码(Hamming Code)是一种______。
A. 纠错码
B. 检错码
C. 语音编码
D. 压缩编码
[单项选择]2007年1月9日,日本防卫厅正式升格为( )。
A. 自卫队
B. 国土安全部
C. 国防部
D. 防卫省
[多选题]20.常用的止血方法有( )。
A.指压止血法
B.包扎止血法
C. 加压包扎止血法
D. 屈肢加垫止血法
E.填塞止血法
F.止血带止血法
[多项选择]心脏听诊内容主要包括( )。
A. 心音
B. 心率
C. 心律
D. 心脏杂音
E. 心脏大小
[单项选择]以下方法检查的杂质是:在酸性溶液中,与三氯化铁试液反应的方法().
A. 硫酸阿托品中的莨菪碱
B. 硝酸士的宁中的马钱子碱
C. 盐酸吗啡中的罂粟酸
D. 硫酸奎宁中的其他生物碱
E. 盐酸麻黄碱中的有关物质
[判断题]生产安全事故伤亡依法应承担的责任,但从业人员有违章作业情形的除外。
A.正确
B.错误
[多选题]遇下列哪些情况列车调度员不发布行车调度命令?()
A.使用绿色许 可证或半自动闭塞发车进路通知书发出列车时。
B.旅客列车 在技术停车站(不办理客运、通勤业务和技术作业)临时变更通过。
C.使用引导信号接车(含引导手信号接车)。
D.列车退行。
[单选题]曲线地段的中心线间的水平距离和线间设施(含站台边缘)至线路中心线的最小距离,均按曲线半径大小,根据《技规》规定的( )客货共线铁路的曲线上建筑限界加宽办法计算确定。
A.v≤60km/h
B.v≤160km/h
C.v≤180km/h
D.v≤190km/h
[不定项选择题]共用题干
第三篇
The Iceman
On a September day in 1991,two Germans were climbing the mountains between Austria and Italy. High
up on a mountain pass,they found the body of a man lying on the ice.At that height(10,499 feet or 3,200
meters),the ice is usually permanent,but 1991 had been an especially warm year. The mountain ice had
melted more than usual and so the body had come to the surface.
It was lying face downward. The skeleton(骨架)was in perfect condition, except for a wound in the
head.There was still skin on the bones and the remains of some clothes.The hands were still holding the
wooden handle of an ax and on the feet there were very simple leather and cloth boots.Nearby was a pair of
gloves made of tree bark(树皮)and a holder for arrows.
Who was this man?How and when had he died?Everybody had a different answer to these questions.
Some people thought that it was from this century,perhaps the body of a soldier who died in World War I,
since several soldiers had already been found in the area. A Swiss woman believed it might be her father,
who had died in those mountains twenty years before and whose body had never been found.The scientists
who rushed to look at the body thought it was probably much older,maybe even a thousand years old.
With modern dating techniques,the scientists soon learned that the iceman was about 5,300 years old.
Born in about 3300
B.
C.,he lived during the Bronze Age in Europe.At first scientists thought he was probably
a hunter who had died in an accident in the high mountains.More recent evidence,however,tells a different
story.A new kind of X-ray shows an arrowhead still stuck in his shoulder. It left only a tiny hole in his skin,
but it caused internal damage and bleeding. He almost certainly died from this wound, and not from the
wound on the back of his head.This means that he was probably in some kind of a battle.It might have been
part of a larger war,or he might have beenl fighting bandits.He might even have been a bandit himself.
By studying his clothes and tools,scientists have already learned a great deal from the iceman about the
times he lived in.we may never know the full story of how he died,but he has given us important clues to the
history of those distant times.
The word"bandits"in Paragraph 4 could be best replaced by______________.
A.robbers
B.shooters
C.soldiers
D.hunters
[判断题]可能导致运行设备跳闸的热工元器件进行检修维护时,要采取解开二次回路端子或压板等防止误跳的措施。热工元器件校验工作可能影响运行设备正常工作时,作业人员还要做好与运行设备的隔离措施,以上措施应做好记录,检修结束后马上恢复。
A.正确
B.错误
[判断题]剩余电流动作保护装置主要用于1000V以下的低压系统。( )
A.正确
B.错误
[判断题]自然条件,如高原气压低、顺风、气温高也会水温过高。( )
A.正确
B.错误
[单项选择]在下列几种排序方法中,要求内存量最大的是__________。
A. 插入排序
B. 选择排序
C. 快速排序
D. 归并排序
[单选题]如果把电解电容器的极性接反,则会使( )
A.电容量增大
B.电容量减小
C.容抗增大
D.电容器击穿损坏
[单项选择]执行下列哪一条指令后,就能用条件转移指令判断AL和BL寄存器中的最高位是否相同( )。
A. TEST AL, BL
B. CMP AL, BL
C. AND AL, BL
D. XOR AL, BL
[判断题] 以海关监管期内的动产作质押的,需要负责监管的海关出具同意质押的证明文件。( )[2014年11月真题]
A.正确
B.错误
[单项选择]治疗下焦之下血的是()
A. 茜草
B. 藕节
C. 地榆
D. 仙鹤草
E. 蒲黄
[填空题]数字图形与图像从其生成、显示、处理和存储的数据运算机制角度看,一般分为两种类型,一种是(),另一种是()。
[单选题]甲因与丙有矛盾,故邀乙相助打丙。到丙家后,乙冲过去给丙一拳,致丙口鼻流血;甲随即刺丙一刀,造成丙重伤。关于本案正确的说法是( )。
A.对乙按故意伤害致人重伤处罚
B.对乙按故意伤害致人轻伤处罚
C.乙不构成犯罪,因为其拳击未造成轻伤以上的结果
D.对乙应当按照主犯处罚
[单项选择]患者男性,40岁,车工,因近两个月来经常加班劳动而引起腰背痛及活动障碍,约5日前又扭伤腰部,疼痛加剧,且向右下肢后侧放散,每于弯腰、咳嗽及用力排便时加重。脊髓造影显示L4、5间盘水平偏右见一圆形压迹,最可能的诊断是:()
A. 腰部肌筋膜炎
B. 慢性腰部损伤
C. 强直性脊柱炎
D. 劳累性腰痛
E. 腰间椎盘突出症
[判断题]YZ-1型空气制动机大闸制动缸泄漏量检查:将大闸手柄从制动位移至保压位,保压1min,泄漏量不大于20kPa。
A.正确
B.错误
[单项选择]银联华彩俱乐部是()。
A. 由银联员工组成的俱乐部。
B. 由银联组织、各家银行参加的俱乐部。
C. 由银联组织、面向银联标准卡持卡人开放的俱乐部。
D. 由银联组织、银联各地分公司参加的俱乐部。
[单选题]对于35KV电力电缆,其绝缘电阻不能小于( )。
A.10MΩ
B.200MΩ
C.40MΩ
D.600MΩ
[单项选择]()和员工流动率成正比。
A. 员工工作满意度
B. 员工家庭——生活平衡感
C. 工对其在企业内未来发展的预期和评价
D. 员工对其在企业外未来发展的预期和评价
[单选题]. 一旦发现有人晕倒在有限空间或密闭容器内 ,下面最适合的急救方法是( ) 。
A.第一时间跳下去 ,把中毒者背上来
B.腰间系上绳子 ,第一时间跳下去 ,把中毒者拉上来
C.佩戴防毒面具或空气呼吸器 ,在有人监护的情况下施救
D.报警
[单项选择]下列叙述中,正确的是()。
A. 高级程序设计语言的编译系统属于应用软件
B. 高速缓冲存储器(Cache)一般用SRAM来实现
C. CPU可以直接存取硬盘中的数据
D. 存储在ROM中的信息断电后会全部丢失
[单选题]湿度带电检测比较常用的为阻容法仪器,阻容法测量机理是利用电容器间绝缘材料因吸收水蒸气,改变其( ),最终导致( )变化的原理而实现测量湿度的目的。
A.阻容大小、阻容
B.介电常数、电容
C.电容大小、阻容
D.阻值系数、信号
[单选题]单位客户受理要件及初审时,需审核加盖预留印鉴的( )性。
A.一致
B.不一致
C.相似
D.基本相同
[多选题]数字区段调度电路:
A.调度所调度交换机之间
B.调度所调度交换机至车站调度交换机之间
C.车站调度交换机之间的数字电路
D.局间调度所调度交换机之间的数字电路
[单选题]遮断信号机和半自动闭塞、自动站间闭塞区段线路所通过信号机,设( )信号机。
A.遮断
B.预告
C.复示
D.接近